JP2007028852A - Railway vehicle drive controller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent comfortability on a vehicle from being degraded due to the torque shock of a permanent magnet electric motor, by preventing the flow of a transient current from the motor to a smoothing capacitor, when the motor is restarted while running. <P>SOLUTION: A railway vehicle drive controller controls a motor circuit switch 25 to be closed, provided that a voltage of a DC-side circuit of an inverter 22 is equal to or larger than the peak value Vm of the induced voltage between the terminals of the motor 21, when the motor circuit switch is closed to restart the motor. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a railway vehicle drive control device.

  FIG. 65 shows a configuration of a conventional railway vehicle drive control device. In FIG. 65, 1 is an overhead line which is an AC power source, 2 is a current collector, 3 is an AC circuit breaker, 4 is a primary winding of the main circuit transformer T, 5 is a secondary winding of the main circuit transformer T, 7 is a wheel, 8 is a return rail, 9 is an AC current detector for detecting the current between the transformer secondary winding and the converter, 10 is a charging switch, 11 is a charging circuit resistor, 18 Is an AC circuit switch, 12 is a converter, 13U to 13Y are converter switching elements, 14 is a smoothing capacitor, 15 is a voltage detector for detecting the voltage of the DC circuit between the converter and the inverter, and 21 is for driving a railway vehicle. Permanent magnet motor 22, 22 is an inverter, 23 U to 23 Z are inverter switching elements, 24 U to 24 W are current detectors for detecting the current between the inverter and the permanent magnet motor, and 25 is a motor circuit switch. .

  The converter 12 includes switching elements 13U to 23Y. By arbitrarily turning on / off these four switching elements, the AC voltage supplied from the transformer secondary winding 5 is changed to an arbitrary voltage. It has the function of converting to DC voltage.

  The inverter 22 includes switching elements 23U to 23Z, and converts the DC voltage into a three-phase AC voltage having an arbitrary voltage and an arbitrary frequency by arbitrarily turning on and off the six switching elements. It has a function. A DC voltage that is a power source of the inverter 22 is supplied by the converter 12.

  The permanent magnet motor 21 is supplied with three-phase AC power of the U-phase current Iu, the V-phase current Iv, and the W-phase current Iw from the inverter 22. At this time, line voltages Vuv, Vvw, and Vwu are applied to the terminals of each permanent magnet motor 21.

  The AC circuit breaker 3 is functionally a kind of switch and connects / disconnects the overhead wire 1 which is an AC power source and the transformer primary winding 4.

  The transformer T is provided with a primary winding 4 and a secondary winding 5 and converts the magnitude of the AC voltage of the overhead wire 1 into the magnitude of the input voltage of the converter 12.

  The charging switch 10 and the charging circuit resistor 11 are for charging the smoothing capacitor 14 provided in the DC circuit between the converter 12 and the inverter 22 before starting the converter 12.

  The AC circuit switch 18 is for turning on and off the AC circuit between the transformer secondary winding 5 and the converter 12.

  Smoothing capacitor 14 has an effect of stabilizing the DC voltage output from converter 12 and supplied to inverter 22.

  The motor circuit switch 25 is provided in a three-phase AC circuit between the inverter 12 and the permanent magnet motor 21, and is used to turn on and open the three-phase AC circuit between the inverter 12 and the permanent magnet motor 21. Is. Here, the motor circuit switch 25 is added to the conventional railway vehicle drive control device for an induction motor when a permanent magnet motor is applied as an electric motor for driving the railway vehicle instead of the conventional induction motor. Is an essential part.

  In the case of a railway vehicle, even if the railway vehicle drive control device breaks down, staying at the place where the failure occurred will hinder the operation of other trains traveling on the same route, so the nearest station Or, there is a special technical requirement as a railway vehicle that it is necessary to be able to route a failed train to the garage for repair.

  The permanent magnet motor has the advantage that the efficiency of the motor is improved as compared with an induction motor conventionally used as a driving motor for a railway vehicle. On the other hand, if the permanent magnet motor rotates, the permanent magnet motor An induced voltage is generated at the terminal of the permanent magnet motor by the magnetic flux. When the switching element incorporated in the inverter or converter of the railway vehicle drive control device fails in the short-circuit mode, the terminals of the permanent magnet motor are short-circuited to form a closed circuit. For this reason, when the permanent magnet motor rotates, an electric current flows from the permanent magnet motor to the failed inverter or converter due to the induced voltage, thereby further expanding the damage. At this time, a braking force is generated in the permanent magnet motor due to the current flowing in the closed circuit between the permanent magnet motor and the inverter or converter. Therefore, the railway vehicle cannot be forwarded. For this reason, for example, an abnormality is detected in the current of the converter 12 by the current detector 9 provided between the transformer secondary winding 5 and the converter 12, or the current provided between the inverter 22 and the permanent magnet motor 21. The inverter 22 or the converter 12 is detected by a method such as detecting an abnormality in the output current of the inverter by the detector 24U-24W, or detecting an abnormality in the DC voltage with respect to the smoothing capacitor by the DC voltage monitoring means (DC voltage detector). When the protection function detects that a failure has occurred, it is necessary to open the circuit between the permanent magnet motor 21 and the inverter 22. For this purpose, for example, a method as shown in Patent Document 1 is proposed, and a switch 25 is provided in a circuit between the inverter 22 and the permanent magnet motor 21.

  FIG. 66 is a diagram showing a configuration of a control circuit for turning on / off the switch 25 of the conventional railway vehicle drive control device shown in FIG. In FIG. 66, 101 is a control circuit power supply, 102 is a control circuit power supply ground, and 103 is a control unit.

  The control unit 103 includes a charging switch input command signal for turning on and off the charging switch 10, an AC circuit switch input command signal for opening and opening the AC circuit switch 18, and the motor circuit switch 25. An electric motor circuit switch input command signal for turning on and off the motor is output.

  The relay 104 a is a control circuit that supplies power to the drive operation coil 110 of the charging switch 10, and is turned on by a charging switch input command signal from the control unit 103.

  The relay 104 b is a control circuit that supplies power to the drive operation coil 118 of the AC circuit switch 18, and is turned on by an AC circuit switch input command signal from the control unit 103.

  The relay 104 c is a control circuit that supplies power to the drive operation coil 125 of the motor circuit switch 25, and is turned on (turned on) by a motor circuit switch input command signal from the control unit 103.

  When starting the operation of the railway vehicle drive control device, or when starting the operation again after stopping the railway vehicle drive control device because the protection function has detected a failure during traveling, first, the charging switch 10 To charge the smoothing capacitor 14 provided in the DC circuit between the converter 12 and the inverter 22. When the charging switch 10 is turned on, the smoothing capacitor 14 is charged by the current limited by the charging circuit resistor 11 via the antiparallel diodes of the switching elements 13U to 13Y built in the converter 12. Is done. After charging of the smoothing capacitor 14 is completed, the AC circuit switch 18 is turned on (ON), the AC circuit between the transformer secondary winding 5 and the converter 12 is connected, and the motor circuit switch 25 is turned on (ON). The three-phase AC circuit between the inverter 22 and the permanent magnet motor 21 is connected, and the charging switch 10 is opened (turned off).

  As for the timing of turning on the AC circuit switch 18 and the motor circuit switch 25, the charging switch 10 is considered in consideration of the charging time determined in advance from the resistance value of the charging circuit resistor 11 and the capacitance of the smoothing capacitor 14. When the charging time has elapsed after turning on, the AC circuit switch 18 and the motor circuit switch 25 are turned on and the charging switch 10 is opened. Alternatively, as an alternative method, the detection value of the voltage detector 15 is monitored, and when the voltage of the smoothing capacitor 14 exceeds a preset threshold, the AC circuit switch 18 and the motor circuit switch 25 are turned on and charged. The switch 10 may be opened.

  After the AC circuit switch 18 and the motor circuit switch 25 are turned on and the circuit of the railway vehicle drive control device is configured, the converter 12 and the inverter 22 start by starting the on / off operation of the switching elements incorporated therein. To do.

  However, in the conventional railway vehicle drive control device, whenever the operation of the railway vehicle drive control device is started, the motor circuit switch is turned on before starting the converter. For this reason, there were the following problems.

  The permanent magnet motor 21 generates an induced voltage due to the magnetic flux of the permanent magnet at its terminal as the rotor rotates. That is, an induced voltage is generated at the terminal of the permanent magnet motor 21 while the railway vehicle is traveling.

  When starting the operation of the railway vehicle drive control device while traveling, when the DC voltage Vdc charged in advance in the smoothing capacitor 14 is equal to or higher than the peak value Vm of the induced voltage between the terminals of the permanent magnet motor 21, There is no problem because no current flows through the circuit between the inverter 22 and the permanent magnet motor 21 at the moment when the motor circuit switch 25 is turned on.

On the other hand, when the operation of the railway vehicle drive control device is started during traveling, when the DC voltage Vdc charged in advance in the smoothing capacitor 14 is smaller than the peak value Vm of the induced voltage between the terminals of the permanent magnet motor 21. At the moment when the motor circuit switch 25 is turned on, an induced voltage between the terminals of the rotating permanent magnet motor 21 causes a reverse-parallel diode of the switching element built in the inverter 22 from the permanent magnet motor 21. A transient current that charges the smoothing capacitor 14 flows to a DC voltage rectified by the antiparallel diode. Examples of this transient current are shown in FIGS. This transient current is actually a current due to an alternating voltage induced with the rotation of the rotor of the permanent magnet motor, but in FIGS. 67 and 68, it is expressed as a direct current amount as the magnitude of the transient current. When the transient current flows, the permanent magnet motor 21 has a problem that a torque shock is generated and the riding comfort of the vehicle is impaired.
JP-A-8-182105 Japanese Patent No. 3226253

  The present invention has been made in view of the problems of the prior art as described above, and a transient current flows from the permanent magnet motor to the smoothing capacitor even when the operation of the railway vehicle drive control device is started during traveling. It is an object of the present invention to provide a railway vehicle drive control device that can prevent the vehicle from being damaged by a torque shock of a permanent magnet motor.

  The railway vehicle drive control device of the present invention includes a permanent magnet motor that drives a vehicle, an inverter that converts a DC voltage into an AC voltage having an arbitrary voltage and an arbitrary frequency, and supplies AC power to the permanent magnet motor, A DC voltage detector that detects and outputs a voltage of a circuit on the DC side of the inverter, and an n-phase AC circuit (n is an arbitrary number representing the number of AC phases) between the inverter and the permanent magnet motor A motor circuit switch provided with a contact for opening / closing a circuit in at least the n-1 phase, and a controller for outputting a motor circuit switch closing command signal for opening / closing the motor circuit switch And the controller is configured to cause the voltage of the circuit on the DC side of the inverter to induce between the terminals of the permanent magnet motor when the motor circuit switch is turned on to start the operation of the railway vehicle drive control device. Characterized by a control to inject the motor circuit switch on condition that the voltage is the peak value or more.

  In the railcar drive control device of the present invention, a permanent magnet motor that drives a vehicle, a rotation detector that detects and outputs rotation of a rotor of the permanent magnet motor, and a primary winding are connected to an AC power source. A transformer that converts the AC voltage of the secondary winding of the transformer into a DC voltage of an arbitrary magnitude and outputs the DC voltage, and outputs the DC voltage that is the output of the converter at an arbitrary voltage and an arbitrary frequency. An inverter that converts AC voltage to supply AC power to the permanent magnet motor, a DC voltage detector that detects and outputs a voltage of a DC circuit between the converter and the inverter, the inverter, and the permanent magnet A motor circuit switch provided with a contact for opening / closing a circuit in at least the n-1 phase of the n-phase AC circuit (n is an arbitrary number representing the number of AC phases) between the motor and the motor; Motor circuit A control unit that outputs a motor circuit switch input command signal for turning on and off the closing device, the control unit including a motor induced voltage calculation unit, a motor circuit switch input condition determination unit, and a DC voltage command value; The motor induced voltage calculation means receives the output of the rotation detector, calculates the peak value of the induced voltage between the terminals of the permanent magnet motor, and outputs the motor circuit switch; The closing condition determining means inputs the output of the motor induced voltage calculating means and the output of the DC voltage detector, outputs a motor circuit switch closing permission signal, and the DC voltage command value output means is the motor induced voltage The output of the arithmetic means is input, and the command value of the DC voltage command value converted by the converter is a command value whose DC voltage command value is not less than the peak value of the induced voltage between the terminals of the permanent magnet motor. , When turning on the motor circuit switch to start the operation of the road vehicle drive control device, if the motor circuit switch turn-on permission signal is not output, the converter is operated to increase the voltage of the DC circuit. Control is performed to turn on the motor circuit switch after the peak value of the induced voltage between the terminals of the permanent magnet motor has been raised.

  The railcar drive control device of the present invention includes a permanent magnet motor that drives a vehicle, a motor terminal voltage detector that detects and outputs a terminal voltage of the permanent magnet motor, and a primary winding connected to an AC power source. A transformer that converts the AC voltage of the secondary winding of the transformer into a DC voltage of an arbitrary magnitude and outputs the DC voltage, and outputs the DC voltage that is the output of the converter at an arbitrary voltage and an arbitrary frequency. An inverter that converts AC voltage to supply AC power to the permanent magnet motor, a DC voltage detector that detects and outputs a voltage of a DC circuit between the converter and the inverter, the inverter, and the permanent magnet A motor circuit switch provided with a contact for opening / closing a circuit in at least the n-1 phase of the n-phase AC circuit (n is an arbitrary number representing the number of AC phases) between the motor and the motor; Electric A controller that outputs a motor circuit switch input command signal for switching on and off the circuit switch; the control unit includes a motor induced voltage calculation means, a motor circuit switch input condition determination means, and a DC voltage command; Value output means, wherein the motor induced voltage calculation means inputs the output of the motor terminal voltage detector, calculates and outputs the peak value of the induced voltage between the terminals of the permanent magnet motor, and the motor The circuit switch input condition discriminating means inputs the output of the electric motor induced voltage calculation means and the output of the DC voltage detector, outputs an electric motor circuit switch input permission signal, and the DC voltage command value output means The output of the motor induced voltage calculation means is input, and the command value of the DC voltage converted by the converter is such that the DC voltage command value is not less than the peak value of the induced voltage between the terminals of the permanent magnet motor. When the motor circuit switch input permission signal is not output when the motor circuit switch is turned on to output the command value and start operation of the railway vehicle drive control device, the converter is operated. Control is performed to turn on the motor circuit switch after raising the voltage of the DC circuit to a peak value or more of the induced voltage between the terminals of the permanent magnet motor.

  Moreover, the railway vehicle drive control device of the present invention includes a permanent magnet motor that drives a vehicle, a transformer in which a primary winding is connected to an AC power source, and an AC voltage of a secondary winding of the transformer of an arbitrary magnitude. A converter that converts the DC voltage into an output voltage, an inverter that converts the DC voltage output from the converter into an AC voltage having an arbitrary voltage and an arbitrary frequency, and supplies AC power to the permanent magnet motor; A DC voltage detector that detects and outputs a voltage of a DC circuit between the converter and the inverter; and an n-phase AC circuit between the inverter and the permanent magnet motor (n represents an arbitrary number of AC phases) A motor circuit switch provided with a contact for opening / closing a circuit in at least the n-1 phase of the number), and a motor circuit switch closing command signal for opening / closing the motor circuit switch. Output A control unit, the control unit includes a voltage command value output unit, a motor circuit switch input condition determination unit, and a DC voltage command value output unit, the voltage command value output unit is a preset value As a voltage command value, a value equal to or greater than the peak value of the induced voltage between the terminals at the maximum number of rotations of the permanent magnet motor in the running of the vehicle, the DC voltage command value output means, the voltage command value is The DC voltage command value converted by the converter is output, and the motor circuit switch input condition determining means inputs the voltage command value and the output of the DC voltage detector, and permits the motor circuit switch input permission. When the motor circuit switch is turned on to output a signal and start operation of the railway vehicle drive control device, the converter is operated so that the voltage of the DC circuit is changed to the permanent magnet in the running of the vehicle. Characterized by a control to inject the motor circuit switch in after being raised above the peak value of the induced voltage across the terminals of the maximum rotational speed of the motive.

  In the railcar drive control device of the present invention, a permanent magnet motor that drives a vehicle, a rotation detector that detects and outputs rotation of a rotor of the permanent magnet motor, and a primary winding are connected to an AC power source. A transformer that converts the AC voltage of the secondary winding of the transformer into a DC voltage of an arbitrary magnitude and outputs the DC voltage, and outputs the DC voltage that is the output of the converter at an arbitrary voltage and an arbitrary frequency. Provided in the transformer is an inverter that converts AC voltage to supply AC power to the permanent magnet motor, a DC voltage detector that detects and outputs a voltage of a DC circuit between the converter and the inverter, and A tertiary winding that outputs a voltage smaller than the secondary winding; a charging circuit step-up transformer that is connected to the tertiary winding via a charging switch and boosts the voltage of the tertiary winding; Ascent of the charging circuit step-up transformer A rectifying circuit for rectifying the voltage on the side and outputting it to a DC circuit between the converter and the inverter for charging, and an n-phase AC circuit between the inverter and the permanent magnet motor (n is an AC current) Motor circuit switch provided with a contact for opening / closing a circuit to at least n−1 phases of the number of phases), and a motor circuit for opening / closing the motor circuit switch A control unit for outputting a switch input command signal and a charging switch input command signal for inputting and opening the charging switch, the control unit comprising: an electric motor induced voltage calculation means; and an electric circuit switch The motor induced voltage calculation means receives the output of the rotation detector, calculates the peak value of the induced voltage between the terminals of the permanent magnet motor, and outputs the motor circuit; Switch input condition Another means inputs the output of the electric motor induced voltage calculation means and the output of the DC voltage detector, outputs an electric motor circuit switch input permission signal, and starts the operation of the railway vehicle drive control device, A switch is turned on to charge a DC circuit between the converter and the inverter, and control is performed to turn on the motor circuit switch on condition that the motor circuit switch turn-on permission signal is output. It is characterized by.

  The railcar drive control device of the present invention includes a permanent magnet motor that drives a vehicle, a motor terminal voltage detector that detects and outputs a terminal voltage of the permanent magnet motor, and a primary winding connected to an AC power source. A transformer that converts the AC voltage of the secondary winding of the transformer into a DC voltage of an arbitrary magnitude and outputs the DC voltage, and outputs the DC voltage that is the output of the converter at an arbitrary voltage and an arbitrary frequency. Provided in the transformer is an inverter that converts AC voltage to supply AC power to the permanent magnet motor, a DC voltage detector that detects and outputs a voltage of a DC circuit between the converter and the inverter, and A tertiary winding that outputs a voltage smaller than the secondary winding, and a charging circuit step-up transformer that is connected to the tertiary winding via a charging switch and boosts the voltage of the tertiary winding; , The charging circuit boost variable A rectification circuit for charging that rectifies the voltage on the booster side of the converter and outputs it to a DC circuit between the converter and the inverter, and an n-phase AC circuit between the inverter and the permanent magnet motor (n Is an arbitrary number representing the number of alternating current phases), and a motor circuit switch provided with a contact for opening / closing a circuit in at least the n-1 phase, and for opening / closing the motor circuit switch A control unit for outputting a motor circuit switch input command signal and a charging switch input command signal for opening and opening the charging switch, wherein the control unit includes a motor induced voltage calculation means, a motor Circuit switch input condition determining means, wherein the motor induced voltage calculation means inputs the output of the motor terminal voltage detector, calculates the peak value of the induced voltage between the terminals of the permanent magnet motor, and outputs it And the electric motor The road switch input condition determining means inputs the output of the electric motor induced voltage calculation means and the output of the voltage detector, outputs an electric motor circuit switch input permission signal, and starts operation of the railway vehicle drive control device. The charging switch is turned on to charge the DC circuit between the converter and the inverter, and the motor circuit switch is turned on on condition that the motor circuit switch turning permission signal is output It is characterized by controlling.

  In the railcar drive control device of the present invention, a permanent magnet motor that drives a vehicle, a rotation detector that detects and outputs rotation of a rotor of the permanent magnet motor, and a primary winding are connected to an AC power source. A main circuit transformer, a converter for converting an AC voltage of a secondary winding of the main circuit transformer into a DC voltage of an arbitrary magnitude, and an output, and a DC voltage as an output of the converter as an arbitrary voltage An inverter that converts AC voltage of an arbitrary frequency and supplies AC power to the permanent magnet motor; a main circuit DC voltage detector that detects and outputs a voltage of a DC circuit between the converter and the inverter; A tertiary winding that is provided in the main circuit transformer and outputs a voltage smaller than the secondary winding, and a step-up transformer having a winding with a different step-up ratio on the low-voltage side winding. Windings with different boost ratios Are connected to the tertiary winding of the main circuit transformer via the first charging switch and the second charging switch, respectively, and the voltage of the tertiary winding is boosted. And a charging rectifier circuit that rectifies the voltage on the boost side of the charging circuit step-up transformer and outputs the rectified voltage to a DC circuit between the converter and the inverter, and the inverter and the permanent magnet motor. A motor circuit switch provided with a contact for opening / closing a circuit in at least the n−1 phase of the n-phase AC circuit (n is an arbitrary number representing the number of AC phases), and the motor circuit A motor circuit switch input command signal for opening / closing the switch, a first charge switch input command signal for opening / opening the first charging switch, and the second charge Second charging switch for turning on / off the switch A control unit that outputs a command signal, the control unit including a motor induced voltage calculation unit and a motor circuit switch on / off condition determination unit, and the motor induced voltage calculation unit inputs an output of the rotation detector; And the peak value of the induced voltage between the terminals of the permanent magnet motor is calculated and output, and the motor circuit switch input condition determining means outputs the output of the motor induced voltage calculating means and the output of the DC voltage detector. Is input, the motor circuit switch input permission signal is output, and when the operation of the railway vehicle drive control device is started, the first charging switch is turned on and the DC circuit between the converter and the inverter And then turn on the second charging switch to raise the voltage of the DC circuit above the peak value of the induced voltage between the terminals of the permanent magnet motor, and then turn on the motor circuit switch. Control It is characterized by doing.

  The railcar drive control device of the present invention includes a permanent magnet motor that drives a vehicle, a motor terminal voltage detector that detects and outputs a terminal voltage of the permanent magnet motor, and a primary winding connected to an AC power source. A main circuit transformer, a converter for converting an AC voltage of a secondary winding of the main circuit transformer into a DC voltage of an arbitrary magnitude, and an output, and a DC voltage as an output of the converter as an arbitrary voltage An inverter that converts AC voltage of an arbitrary frequency and supplies AC power to the permanent magnet motor, a DC voltage detector that detects and outputs a voltage of a DC circuit between the converter and the inverter, and the transformer A third winding that outputs a voltage smaller than the secondary winding, and a step-up transformer, the lower-voltage side winding having a different step-up ratio, Winding terminals with different step-up ratios A charging circuit step-up transformer that is connected to a tertiary winding of the main circuit transformer via a first charging switch and a second charging switch, respectively, and boosts the voltage of the tertiary winding; A charging rectifier circuit that rectifies the voltage on the boost side of the charging circuit step-up transformer and outputs the rectified voltage to a DC circuit between the converter and the inverter, and n between the inverter and the permanent magnet motor A motor circuit switch provided with a contact for opening / closing a circuit in at least n−1 phases of a phase AC circuit (n is an arbitrary number representing the number of AC phases), and the motor circuit switch An electric circuit switch input command signal for turning on / off, a first charging switch input command signal for turning on / opening the first charging switch, and the second charging switch Second charging switch input command signal to input / release The controller has a motor induced voltage calculation means and a motor circuit switch input condition determination means, and the motor induced voltage calculation means inputs the output of the motor terminal voltage detector. And the peak value of the induced voltage between the terminals of the permanent magnet motor is calculated and output, and the motor circuit switch input condition determining means outputs the output of the motor induced voltage calculating means and the output of the DC voltage detector. Is input, the motor circuit switch input permission signal is output, and when the operation of the railway vehicle drive control device is started, the first charging switch is turned on and the DC circuit between the converter and the inverter And then the second charging switch is turned on, the voltage of the DC circuit is raised to the peak value of the induced voltage between the terminals of the permanent magnet motor, and then the motor circuit switch is turned on. Control It is characterized by doing.

  A railcar drive control device according to the present invention includes a permanent magnet motor that drives a vehicle, a rotation detector that detects and outputs rotation of a rotor of the permanent magnet motor, a DC voltage at an arbitrary voltage, and an arbitrary frequency. An inverter that converts the AC voltage into an AC voltage and supplies AC power to the permanent magnet motor; a DC voltage detector that detects and outputs the voltage of the DC side circuit of the inverter; and the DC side circuit of the inverter is charged A first charging switch for initial charging via a circuit resistor, and an auxiliary circuit to which AC power is supplied from an auxiliary power supply device of the vehicle, connected via a second charging switch; A charging circuit step-up transformer for stepping up the voltage of the auxiliary circuit; a charging rectifier circuit that rectifies the voltage on the boost side of the charging circuit step-up transformer and outputs the voltage to the DC side circuit of the inverter; and the inverter Motor circuit opening / closing provided with contacts for opening / closing a circuit in at least the n-1 phase of the n-phase AC circuit (n is an arbitrary number representing the number of AC phases) with the permanent magnet motor A motor circuit switch input command signal for opening / closing the motor circuit switch, and a first charging switch input command signal for opening / opening the first charging switch. And a control unit for outputting a second charging switch input command signal for switching on / off the second charging switch, wherein the control unit includes a motor induced voltage calculation means, a motor circuit switch The motor induced voltage calculation means receives the output of the rotation detector, calculates the peak value of the induced voltage between the terminals of the permanent magnet motor, and outputs the motor circuit; The switch input condition determining means is the motor induction The output of the pressure calculation means and the output of the voltage detector are input, the motor circuit switch input permission signal is output, and when the operation of the railway vehicle drive control device is started, the first charge switch is turned on. Then, the circuit on the DC side of the inverter is charged, and then the second charging switch is turned on to raise the voltage of the DC circuit above the peak value of the induced voltage between the terminals of the permanent magnet motor. Control to turn on the motor circuit switch later is performed.

  A railcar drive control device according to the present invention includes a permanent magnet motor that drives a vehicle, a motor terminal voltage detector that detects and outputs a terminal voltage of the permanent magnet motor, a DC voltage at an arbitrary voltage, and an arbitrary frequency. An inverter that converts the AC voltage into an AC voltage and supplies AC power to the permanent magnet motor; a DC voltage detector that detects and outputs the voltage of the DC side circuit of the inverter; and the DC side circuit of the inverter is charged A first charging switch for initial charging via a circuit resistor, and an auxiliary circuit connected via a second charging switch to an auxiliary circuit supplied with AC power from an auxiliary power supply device of the vehicle A charging circuit step-up transformer that boosts the voltage of the charging circuit, a charging rectifier circuit that rectifies the voltage on the boost side of the charging circuit step-up transformer and outputs the rectified voltage to the DC side circuit of the inverter, and the inverter Motor circuit opening / closing provided with contacts for opening / closing a circuit in at least the n-1 phase of the n-phase AC circuit (n is an arbitrary number representing the number of AC phases) with the permanent magnet motor A motor circuit switch input command signal for opening / closing the motor circuit switch, and a first charging switch input command signal for opening / opening the first charging switch. And a control unit for outputting a second charging switch input command signal for switching on / off the second charging switch, wherein the control unit includes a motor induced voltage calculation means, a motor circuit switch The electric motor induced voltage calculation means inputs the output of the electric motor terminal voltage detector, calculates the peak value of the induced voltage between the terminals of the permanent magnet electric motor, The motor circuit switch charging condition determining means is the above-mentioned When the output of the motive induced voltage calculation means and the output of the DC voltage detector are input, the motor circuit switch input permission signal is output, and the operation of the railway vehicle drive control device is started, the first charging switch To charge the circuit on the DC side of the inverter, and then turn on the second charging switch to make the voltage of the DC circuit equal to or higher than the peak value of the induced voltage between the terminals of the permanent magnet motor. Control is performed to turn on the motor circuit switch after being raised.

  The railcar drive control device of the present invention includes a permanent magnet motor that drives a vehicle, a rotation detector that detects and outputs rotation of a rotor of the permanent magnet motor, and a voltage of a DC power supply of an arbitrary magnitude. A chopper that boosts and outputs a DC voltage, an inverter that converts the DC voltage output from the chopper into an AC voltage having an arbitrary voltage and an arbitrary frequency, and supplies AC power to the permanent magnet motor; and At least of a DC voltage detector that detects and outputs a voltage of a DC side circuit, and an n-phase AC circuit (n is an arbitrary number representing the number of AC phases) between the inverter and the permanent magnet motor. A motor circuit switch provided with a contact for opening / closing a circuit in the n-1 phase, and a controller for outputting a motor circuit switch input command signal for opening / opening the motor circuit switch The control unit includes a motor induced voltage calculation means, a motor circuit switch input condition determination means, and a DC voltage command value output means, and the motor induced voltage calculation means inputs the output of the rotation detector. The peak value of the induced voltage between the terminals of the permanent magnet motor is calculated and output, and the motor circuit switch input condition determining means outputs the output of the motor induced voltage calculating means and the output of the DC voltage detector. The motor circuit switch input permission signal is input, the DC voltage command value output means inputs the output of the motor induced voltage calculation means, and the DC voltage as the command value of the DC voltage boosted by the chopper When the motor circuit switch is turned on in order to output a value equal to or greater than the peak value of the induced voltage between the terminals of the permanent magnet motor and start operation of the railway vehicle drive control device, When the circuit switch input permission signal is not output, after operating the chopper to raise the voltage of the circuit on the DC side of the inverter to a peak value or more of the induced voltage between the terminals of the permanent magnet motor Control to turn on the motor circuit switch is performed.

  The railway vehicle drive control device according to the present invention includes a permanent magnet motor that drives a vehicle, a motor terminal voltage detector that detects and outputs a terminal voltage of the permanent magnet motor, and a voltage of a DC power supply of an arbitrary magnitude. A chopper that boosts and outputs a DC voltage, an inverter that converts the DC voltage output from the chopper into an AC voltage having an arbitrary voltage and an arbitrary frequency, and supplies AC power to the permanent magnet motor; and At least of a DC voltage detector that detects and outputs a voltage of a DC side circuit, and an n-phase AC circuit (n is an arbitrary number representing the number of AC phases) between the inverter and the permanent magnet motor. A motor circuit switch provided with a contact for opening / closing a circuit in the n-1 phase, and a control for outputting a motor circuit switch opening command signal for opening / closing the motor circuit switch The controller includes a motor induced voltage calculation means, a motor circuit switch input condition determination means, and a DC voltage command value output means, and the motor induced voltage calculation means includes a motor terminal voltage detector. The output is input, the peak value of the induced voltage between the terminals of the permanent magnet motor is calculated and output, and the motor circuit switch input condition determining means is configured to output the output of the motor induced voltage calculating means and the DC voltage detection The output of the motor is input, the motor circuit switch input permission signal is output, the DC voltage command value output means inputs the output of the motor induced voltage calculation means, and the command value of the DC voltage boosted by the chopper The DC voltage command value outputs a value equal to or greater than the peak value of the induced voltage between the terminals of the permanent magnet motor, and the motor circuit switch is turned on to start operation of the railway vehicle drive control device. Sometimes, when the motor circuit switch input permission signal is not output, the chopper is operated so that the voltage of the circuit on the DC side of the inverter exceeds the peak value of the induced voltage between the terminals of the permanent magnet motor. Control is performed to turn on the motor circuit switch after being raised.

  The railcar drive control device of the present invention includes a permanent magnet motor that drives a vehicle, a chopper that boosts and outputs a DC power supply voltage to a DC voltage of an arbitrary magnitude, and a DC voltage output from the chopper. An inverter that converts an AC voltage of an arbitrary voltage and an arbitrary frequency to supply AC power to the permanent magnet motor, a DC voltage detector that detects and outputs a voltage of a circuit on the DC side of the inverter, and the inverter Motor circuit provided with contacts for opening / closing a circuit in at least the n-1 phase of the n-phase AC circuit (n is an arbitrary number representing the number of AC phases) between the motor and the permanent magnet motor A switch and a controller that outputs a motor circuit switch input command signal for opening and opening the motor circuit switch; the control unit includes a voltage command value output means, and a motor circuit switch input condition; DC voltage command value output means, and the voltage command value output means is a preset peak value of the induced voltage between the terminals at the maximum number of rotations of the permanent magnet motor during vehicle travel. The above value is output as a voltage command value, and the motor circuit switch input condition determining means inputs the voltage command value and the output of the DC voltage detector, outputs a motor circuit switch input permission signal, DC voltage command value output means inputs the voltage command value, outputs a command value of DC voltage boosted by the chopper, and turns on the motor circuit switch to start operation of the railway vehicle drive control device Sometimes, the electric motor is operated after the chopper is operated to raise the voltage of the circuit on the DC side of the inverter above the peak value of the induced voltage between the terminals at the maximum number of revolutions of the permanent magnet motor in the running of the vehicle. Characterized by the control of turning on the circuit switch.

  According to the present invention, when the operation of the railway vehicle drive control device is started during traveling, or because the protection function has detected a failure during traveling, the rail vehicle drive control device is once stopped and then restarted. Even in this case, it is possible to prevent a transient current from flowing from the permanent magnet motor to the smoothing capacitor and to prevent the ride comfort of the vehicle from being damaged by the torque shock of the permanent magnet motor.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  (First Embodiment) FIG. 1 shows the configuration of a railway vehicle drive control apparatus according to a first embodiment of the present invention. Each component of FIG. 1 is demonstrated below. 1 is an AC power supply overhead line, 2 is a current collector, 3 is an AC circuit breaker, T is a main circuit transformer, 4 is a transformer primary winding, 5 is a transformer secondary winding, 7 is a wheel, 8 Is a return rail, 9 is an AC current detector for detecting the current between the transformer secondary winding 5 and the converter 12, 10 is a charging switch, 11 is a charging circuit resistor, and 12 is Converters, 13U to 13Y are switching elements of the converter 12, 14 is a smoothing capacitor, 15 is a DC voltage detector for detecting the voltage of a DC circuit between the converter 12 and the inverter 22, and 18 is a transformer secondary winding. 5 and converter 12 AC circuit switch, 21 is a permanent magnet motor, 22 is an inverter, 23U to 23Z are switching elements of the inverter 22, 24U to 24W are between the inverter 22 and the permanent magnet motor 12. Electric , 25 is a motor circuit switch of a circuit between the inverter 22 and the permanent magnet motor 21, and 26 is a rotation detector for detecting the rotation of the rotor of the permanent magnet motor 21. .

  The converter 12 includes switching elements 13U to 13Y. By arbitrarily turning on / off these four switching elements, the AC voltage supplied from the transformer secondary winding 5 has an arbitrary magnitude. It has a function of converting to a direct current voltage. In FIG. 1, the switching elements 13U to 13Y are described as IGBTs (insulated gate bipolar transistors) incorporating diodes connected in antiparallel as an application example, but current is conducted (ON) and blocked (OFF). The type is not limited to the IGBT as long as the element has the function to perform.

The inverter 22 includes switching elements 23U to 23Z, and converts the DC voltage into a three-phase AC voltage having an arbitrary voltage and an arbitrary frequency by arbitrarily turning on and off the six switching elements. It has a function. In FIG. 1, the switching elements 23U to 23Z are described as IGBTs (insulated gate bipolar transistors) incorporating diodes connected in antiparallel as an application example, but current is conducted (ON) and blocked (OFF). The type is not limited to the IGBT as long as the element has the function to perform. A DC voltage that is a power source of the inverter 22 is supplied by the converter 12.

  For example, a pulse width modulation method and other methods may be used as a method of turning on / off the switching element of the converter 12 and a method of turning on / off the switching element of the inverter 22. Even if is applied, the embodiment of the railway vehicle drive control device of the present invention is not affected, and thus the description thereof is omitted.

  Smoothing capacitor 14 has an effect of stabilizing the DC voltage output from converter 12 and supplied to inverter 22.

  The permanent magnet motor 21 is for driving a railway vehicle with its rotor connected to the axle of the driving wheel via a gear or the like, or with the rotor connected directly to the axle of the driving wheel 6. For example, a permanent magnet synchronous motor or a permanent magnet auxiliary reluctance motor, which uses a permanent magnet and therefore generates an induced voltage by its rotation. The permanent magnet motor 21 is supplied with three-phase AC power of an U-phase current Iu, a V-phase current Iv, and a W-phase current Iw from an inverter 22. At this time, line voltages Vuv, Vvw, and Vwu are applied to the respective terminals of the permanent magnet motor 21.

  The AC circuit breaker 3 is functionally a kind of switch and connects / disconnects the overhead wire 1 which is an AC power source and the transformer primary winding 4.

  The transformer T is provided with a primary winding 4 and a secondary winding 5 and converts the magnitude of the AC voltage of the overhead line 1 into the magnitude of the AC voltage of the input voltage of the converter 12.

The AC circuit switch 18 is for opening / closing an AC circuit between the transformer secondary winding 5 and the converter 12. The charging switch 10 and the charging circuit resistor 11 start the converter 12. This is for charging the smoothing capacitor 14 provided in the DC circuit between the converter 12 and the inverter 22 before the operation.

  Before starting the converter 12, the charging switch 10 is turned on, and the current is limited by the charging circuit resistor 11 through the antiparallel diodes of the switching elements 13 </ b> U to 13 </ b> Y built in the converter 12. The smoothing capacitor 14 is charged. After charging of the smoothing capacitor 14 is completed, the AC circuit switch 18 is turned on (ON), the AC circuit between the transformer secondary winding 5 and the converter 12 is connected, and the charging switch 10 is opened (OFF). ) As for the timing when the AC circuit switch 18 is turned on, the charging time after the charging switch 10 is turned on in consideration of the charging time determined from the resistance value of the charging circuit resistor 11 and the capacitance of the smoothing capacitor 14. Is passed, the AC circuit switch 18 is turned on. Alternatively, as another method, the detection value of the voltage detector 15 may be monitored, and the AC circuit switch 18 may be turned on when the voltage of the smoothing capacitor 14 exceeds a preset threshold value.

  The motor circuit switch 25 is for turning on and off the circuit between the inverter 12 and the permanent magnet motor 21. In FIG. 1, the contact of the motor circuit switch is described as an example in which contacts are provided in all three-phase AC circuits between the inverter 12 and the permanent magnet motor 21, but the motor circuit switch 25 is permanent. Since it is for preventing the electric current which flows through the three-phase circuit between the magnet motors 21, you may provide a contactor in any two phases of three phases.

  FIG. 2 is a diagram showing a configuration example of a control circuit of the railway vehicle drive control device according to the first embodiment of the present invention shown in FIG. In FIG. 2, 101 is a control circuit power supply, 102 is a control circuit power supply ground, and 103 is a control unit. 104a to 104c are relays, 109 is an output signal corresponding to the detection value of the AC current detector 9, 112 is a DC voltage command value, 115 is an output signal corresponding to the detection value of the DC voltage detector 15, and 124U to 124W are current detectors 24U to 24U. An output signal corresponding to the detection value of 24 W, and 126 is an output signal corresponding to the detection value of the rotation detector 26. In FIG. 2, in order to facilitate understanding of the operation of the embodiment of the present invention, signals relating to the description of the operation of the embodiment of the present invention are input to the control unit 103 and output from the control unit 103. Only listed.

  The relay 104 a is a control circuit that supplies power to the drive operation coil 110 of the charging switch 10, and is turned on by a charging switch input command signal output from the control unit 103.

  The relay 104 b is a control circuit that supplies power to the drive operation coil 118 of the AC circuit switch 18, and is turned on by an AC circuit switch input command signal output from the control unit 103.

  The relay 104c is a control circuit that supplies power to the drive operation coil 125 of the motor circuit switch 25, and is turned on (turned on) by a motor circuit switch input command signal output from the control unit 103.

  FIG. 3 shows an example of the logic of the AC circuit switch input command signal S02 and the motor circuit switch input command signal S04 among the signals output from the control unit 103, and the motor induced voltage calculation unit 105 built in the control unit 103. It is the figure which showed the example of a structure of the motor circuit switch injection | throwing-in condition determination part 106 and the DC voltage command value output part 107. FIG.

  The switch input command S01 in FIG. 3 is, for example, a switch input command = 1 when the protection function has not detected a failure and the charging time has elapsed after the charging switch 10 is turned on. Or, as another method, a threshold value in which the voltage of the smoothing capacitor 14 is set in advance by monitoring the detected value of the DC voltage detector 15 after the charging switch 10 is turned on while the protection function has not detected a failure. It is good also as a system which makes switch injection | throwing-in instruction | command = 1 when exceeding.

  The AC circuit switch input command signal S02 is output when the switch input command S01 becomes 1.

  The motor circuit switch input command signal S04 is output by AND logic of the switch input command S01 and the motor circuit switch input permission signal S03 output from the motor circuit switch input condition determination unit 106. Alternatively, as another configuration example, as shown in FIG. 4, the RS-FF logic is calculated by AND logic of the switch input command S01 and the motor circuit switch input permission signal S03 output from the motor circuit switch input condition determination unit 106. When the failure is detected by the protective function and the failure detection signal S05 is input, the RS-FF logic may be reset and output.

  Here, the failure detected by the protection function is, for example, the switching elements 13U to 13Y built in the converter 12, the switching elements 23U to 23Z built in the inverter 22, or the switching elements 13U to 13Y. This means that the circuit for turning on / off each of 23U to 23Z is damaged, and the converter 12 or the inverter 22 cannot be started (a state where it cannot be operated). Regarding the failure detection method of the converter 12, for example, the current of the AC circuit on the transformer secondary winding 5 side of the converter 12 is monitored by the AC current detector 9, and it is determined that the converter 12 has failed when an abnormal value is indicated. As for the failure detection method of the inverter 22, for example, the output current of the inverter 22 is monitored by the current detectors 24U to 24W, and when an abnormal value is indicated, it is determined that the inverter 22 has failed. The DC voltage of the DC circuit between them is monitored by the DC voltage detector 15, and when an abnormal value is indicated, it is determined that the converter 12 and the inverter 22 are faulty.

  The motor induced voltage calculation unit 105 receives the output signal 126 of the rotation detector 26 and outputs the peak value Vm of the induced voltage between the terminals of the permanent magnet motor 21.

When the rotation detector 26 is a system that outputs the rotational speed N of the rotor of the permanent magnet motor 21, the rotational angular frequency ω of the permanent magnet motor can be obtained by the following equation.

Alternatively, when the rotation detector 26 is a system that outputs the angle θ of the rotor of the permanent magnet motor 21, the rotation angular frequency ω of the permanent magnet motor 21 is the rotational speed N = ( (dθ / dt) is obtained by the following equation.

The induced voltage between the terminals by the permanent magnet of the rotating permanent magnet motor 21 is an AC voltage, and the peak value is calculated by the following equation.

The motor circuit switch input condition determining unit 106 receives the peak value Vm of the induced voltage between the terminals of the permanent magnet motor 21 and the output signal 115 of the DC voltage detector 15 as outputs of the motor induced voltage calculation unit 105. Then, the motor circuit switch closing permission signal S03 is output. The voltage Vdc of the DC circuit between the converter 12 and the inverter 22 corresponds to the output signal 115 of the DC voltage detector 15, and the motor circuit switch input permission signal S03 is output with the following logic.

The DC voltage command value output unit 107 receives the peak value Vm of the induced voltage between the terminals of the permanent magnet motor, which is the output of the motor induced voltage calculation unit 105, as an input, for example, a preset DC voltage command value initial value VdcRefOrg is compared with the peak value Vm of the induced voltage between the terminals of the permanent magnet motor, and the larger value is output to converter 12 as DC voltage command value 112.

  The converter 12 converts the AC voltage of the transformer secondary winding 5 into a DC voltage based on the DC voltage command value 112 and outputs it.

  ON / OFF of charging switch, ON / OFF of AC circuit switch, DC circuit voltage, motor circuit switch, when starting operation of railway vehicle drive control device of first embodiment of the present invention FIGS. 5 and 6 show examples of timing diagrams with the elapsed time as the horizontal axis for on / off, converter operation / stop, and inverter operation / stop.

  FIG. 5 shows the peak of the induced voltage between the terminals of the permanent magnet motor 21 when the initial charging of the smoothing capacitor 14 is completed after the charging switch 10 is turned on and the AC circuit switch 18 is turned on. In this case, the motor circuit switch 25 is connected to the AC circuit switch 18 because the motor circuit switch input permission signal S03 = 1 when the AC circuit switch 18 is turned on. At the same time, the converter 12 and the inverter 22 start operating.

  FIG. 6 shows an example where the DC circuit voltage Vdc is less than the peak value Vm of the induced voltage between the terminals of the permanent magnet motor 21 when the AC circuit switch 18 is turned on. In this case, the AC circuit switch 18 Is turned on, the converter 12 starts operating to convert the AC voltage of the transformer secondary winding 5 to increase the DC circuit voltage. When the DC circuit voltage becomes equal to or higher than the peak value Vm of the induced voltage of the permanent magnet motor 21, the motor circuit switch input permission signal S03 = 1 is set, and the motor circuit switch 25 is turned on. Thereafter, the inverter 22 starts operating.

  By the operation shown in FIGS. 5 and 6, in the railway vehicle drive control apparatus according to the first embodiment of the present invention, the motor circuit switch 25 is in a state where the permanent magnet motor generates an induced voltage during traveling. Even when the motor circuit switch 25 is turned on, the DC circuit voltage between the converter 12 and the inverter 22 is always greater than or equal to the peak value of the induced voltage between the terminals of the permanent magnet motor 21 when the motor circuit switch 25 is turned on. Further, it is possible to prevent the permanent magnet motor 21 from generating a torque shock due to a current flowing from the permanent magnet motor 21 to the smoothing capacitor 14 of the DC circuit through the antiparallel diode of the switching element of the inverter 22.

  In the railway vehicle drive control apparatus shown in FIG. 1, the contacts of the motor circuit switch 25 are three-phase AC circuit current detectors 24 </ b> U to 24 </ b> W between the inverter 22 and the permanent magnet motor 21, and the permanent magnet motor. The contact is provided between the inverter 12 and the current detectors 24U to 24W because the contact is for preventing a current between the permanent magnet motor 21 and the inverter 22. A child may be provided.

  In the description of the railway vehicle drive control device shown in FIG. 1, the operation mechanism of the motor circuit switch 25 is normally open (a mechanism in which the contact is opened when the drive operation coil is not pressurized). Explains. When the operation mechanism of the motor circuit switch 25 is normally closed (a mechanism in which the contact is turned on when the driving operation coil is not pressurized), the motor circuit input command signal S04 output from the control unit 103 is inverted. When there is no signal, the motor circuit switch 25 is turned on, and when there is a signal, the motor circuit switch 25 is opened. Other parts of the operation of the embodiment of the present invention are the same as those described above.

  Furthermore, since the alternating current detector 9 in the railway vehicle drive control apparatus shown in FIG. 1 is for detecting the current of the alternating circuit between the transformer secondary winding 5 and the converter 12, the transformer You may provide in the phase of either side of the alternating current circuit between the secondary winding 5 and the converter 12. FIG.

  (Second Embodiment) FIG. 7 is a diagram showing a railway vehicle drive control apparatus according to a second embodiment of the present invention. In the railway vehicle drive control apparatus shown in FIG. 1 described above, the contact of the motor circuit switch 25 is one contact for each phase of the three-phase AC circuit between the permanent magnet motor 21 and the inverter 22. However, in the railway vehicle drive control apparatus shown in FIG. 7, two motor circuit switches, such as 25A and 25B, are provided so that the contacts are in series with each phase. It is. In this case, the motor circuit switch 25, the motor circuit switch drive operation coil 125, the relay 104c, and the motor circuit switch input command signal in FIGS. 2 to 6 are respectively supplied to the motor circuit switches 25A and 25B. Corresponding to the above, it is composed of two sets. Other components and operations are the same as those of the railway vehicle drive control apparatus according to the first embodiment of the present invention shown in FIG. In the case of the present embodiment, the motor circuit can be released by any one of the two sets of operations, and the reliability of the circuit operation can be improved.

  (Third Embodiment) FIG. 8 is a diagram showing a railway vehicle drive control apparatus according to a third embodiment of the present invention. The charging switch 10 in the railway vehicle drive control apparatus shown in FIGS. 1 and 7 is configured in series with the charging circuit resistor 11, but in the example of the railway vehicle drive control apparatus shown in FIG. The charging switch 10 is provided in the phase opposite to the AC circuit switch 18 of the AC circuit between the secondary winding 5 and the converter 12. In the case of this configuration, with the railway vehicle drive control device shown in FIG. 1 or FIG. 7, the charging switch 10 may remain on (not turn off) even after the smoothing capacitor 14 has been charged. It differs as operation. When both the charging switch 10 and the AC circuit switch 18 are turned on, the circuit between the transformer secondary winding 5 and the converter 12 is connected.

  Other components and operations are the same as those of the railway vehicle drive control apparatus according to the first embodiment of the present invention shown in FIG. 1, and the effects of the present invention can be obtained in the same manner.

  (Fourth Embodiment) FIG. 9 is a diagram showing the configuration of a railway vehicle drive control apparatus according to a fourth embodiment of the present invention. Compared with the configuration of the railway vehicle drive control device shown in FIG. 1, instead of the charging circuit resistor 11, a transformer tertiary winding 6, a charging circuit step-up transformer 16, and a charging rectifier circuit 17 are provided. It features a configuration.

  The transformer tertiary winding 6 is a winding that outputs a voltage smaller than that of the transformer secondary winding 5. The charging circuit step-up transformer 16 is for boosting the AC voltage of the transformer tertiary winding 6. The charging rectifier circuit 17 rectifies the output of the charging circuit step-up transformer 16 and supplies a DC voltage to a DC circuit between the converter 12 and the inverter 22.

  When charging the smoothing capacitor 14 before starting the converter 12, the charging switch 10 is turned on to connect the transformer tertiary winding 6 and the charging circuit step-up transformer 16 for charging. The smoothing capacitor 14 is charged via the rectifier circuit 17. After charging of the smoothing capacitor 14 is completed, the charging switch 10 is opened (turned off), and the AC circuit switch 25 is turned on (turned on).

  In the railway vehicle drive control device having the configuration shown in FIG. 9, the charging switch 10 is provided in a low voltage circuit connected to the transformer tertiary winding 6, and the charging switch 10 is for low voltage. There is an effect that it is possible to configure with a simple and inexpensive switch.

  About another component and operation | movement, it is the same as that of the rail vehicle drive control apparatus shown in FIGS. 1-6, and the effect of this invention can be acquired similarly.

  (Fifth Embodiment) FIG. 10 is a diagram showing the configuration of a railway vehicle drive control apparatus according to a fifth embodiment of the present invention. In the configuration shown in FIG. 10, the railway vehicle drive control device is configured as a unit drive group by combining an inverter, a permanent magnet motor, a current detector, a motor circuit switch, and a rotation detector, and one converter 12 is provided. On the other hand, the following description will be made with a configuration having two sets of the drive groups, which will be referred to as a first drive group and a second drive group, respectively.

  In FIG. 10, 31 is a permanent magnet motor of the first drive group, 32 is an inverter of the first drive group, 34U to 34W are current detectors of the first drive group, 35 is a motor circuit switch of the first drive group, 36 Is a rotation detector of the first drive group, 41 is a permanent magnet motor of the second drive group, 42 is an inverter of the second drive group, 44U to 44W are current detectors of the second drive group, and 45 is a second drive group. The motor circuit pole switch 46 is a rotation detector of the second drive group.

  FIG. 11 is a diagram illustrating a configuration example of a control unit and a control circuit of the railway vehicle drive control device according to the fifth embodiment of the present invention illustrated in FIG. 10. In FIG. 11, in order to facilitate understanding of the operation of the embodiment of the present invention, signals relating to the description of the operation of the embodiment of the present invention as signals input to the control unit 103 and output from the control unit 103. Only listed.

  134U to 134W are output signals corresponding to the detection values of the current detectors 34U to 34W of the first drive group, 136 is an output signal corresponding to the detection value of the rotation detector 36 of the first drive group, and 144U to 144W are currents of the second drive group. Output signals 146 corresponding to detection values of the detectors 44U to 44W are output signals corresponding to detection values of the rotation detector 46 of the second drive group.

  The relay 104d is a control circuit that supplies power to the drive operation coil 135 of the motor circuit switch 35 of the first drive group, and the first drive group motor circuit switch input command signal S04-1 output by the control unit 103. Is turned on.

  The relay 104e is a control circuit that supplies power to the drive operation coil 145 of the motor circuit switch 45 of the second drive group, and is supplied by the second circuit group motor circuit switch input command signal S04-2 output from the control unit 103. It is turned on.

  The other components are the same as those in the configuration example of the control unit and the control circuit of the railway vehicle drive control device according to the first embodiment of the present invention shown in FIG.

  FIG. 12 shows the AC circuit switch input command signal S02, the first drive group motor circuit switch input command signal S04-1, and the second drive group motor circuit switch input command signal among the signals output by the control unit 103. It is a figure showing an example of logic of S04-2, and a configuration example of a motor induced voltage calculation unit 105, a motor circuit switch input condition determination unit 106, and a DC voltage command value output unit 107 built in the control unit 103.

  The switch input command S01 shown in FIG. 12 is, for example, a switch input command S01 = 1 when the protection function has not detected a failure and the charging time has elapsed after the charging switch 10 is turned on. Become. Or, as another method, a threshold value in which the voltage of the smoothing capacitor 14 is set in advance by monitoring the detected value of the DC voltage detector 15 after the charging switch 10 is turned on while the protection function has not detected a failure. It is good also as a system which makes switch injection | throwing-in instruction | command S01 = 1 when exceeding.

  The AC circuit switch input command signal S02 is output when the switch input command S01 becomes 1.

  The motor circuit switch input command signal S04-1 for the first drive group and the motor circuit switch input command signal S04-2 for the second drive group include the switch input command S01 and the motor circuit switch input condition determination unit 106. It is output by AND logic with the motor circuit switch input permission signal S03 to be output. Alternatively, as another configuration example, as shown in FIG. 13, the RS-FF logic is calculated by AND logic of the switch input command S01 and the motor circuit switch input permission signal S03 output from the motor circuit switch input condition determination unit 106. When the protection function detects a failure and the failure detection signal S05 is input, the RS-FF logic may be reset and output.

  Here, the failure detected by the protection function is, for example, the switching elements 13U to 13Y built in the converter 12, the switching element built in the inverter 32 of the first drive group or the inverter 42 of the second drive group. 23U to 23Z are damaged, or a circuit for turning on / off each of the switching elements 13U to 13Y and 23U to 23Z is damaged, so that the converter 12 or the inverter 32 of the first drive group or the inverter 42 of the second drive group This means a state that cannot be started (a state that cannot be operated). Regarding the failure detection method of the converter 12, for example, the current of the AC circuit on the transformer secondary winding 5 side of the converter 12 is monitored by the AC current detector 9, and it is determined that the converter 12 has failed when an abnormal value is indicated. The failure detection method for the inverter 32 in the first drive group is, for example, the first drive when the output current of the inverter 32 in the first drive group is monitored by the current detectors 34U to 34W and an abnormal value is indicated. As for the failure detection method of the inverter 42 of the second drive group, for example, the output current of the inverter 42 of the second drive group is monitored by the current detectors 44U to 44W and an abnormal value is detected. Is determined to be a failure of the inverter 42 of the second drive group, and the DC circuit between the converter 12 and the inverter 32 of the first drive group and the inverter 42 of the second drive group is determined. The flow voltage is monitored by the voltage detector 15, it determines the converter 12 and the first driving unit of the inverter 32 and the failure of the second driving unit of the inverter 42 in the case shown an abnormal value.

  The motor induced voltage calculation unit 105 receives the output signal 136 of the rotation detector 36 of the first drive group and the output signal 146 of the rotation detector 46 of the second drive group as inputs, and an induced voltage between the terminals of the permanent magnet motor. The peak value Vm of is output.

A system in which the rotation detector 36 of the first drive group and the rotation detector 46 of the second drive group output the rotational speed N of the rotor of the permanent magnet motor 31 of the first drive group and the permanent magnet motor 41 of the second drive group. In this case, the rotational angular frequencies ω1 and ω2 of the respective permanent magnet motors are obtained by the following equations.

Alternatively, the rotation detector 36 of the first drive group and the rotation detector 46 of the second drive group output the angle θ of the rotor of the permanent magnet motor 31 of the first drive group and the permanent magnet motor 41 of the second drive group. In the case of the system, the rotational angular frequencies ω1 and ω2 of the respective permanent magnet motors are the rotational speeds N1 = (dθ1 / dt) and N2 = (dθ2) obtained by differentiating the respective rotor angles θ1 and θ2 with respect to time. / Dt) from the following equation.

The induced voltages of the rotating permanent magnet motor 31 of the first driving group and the permanent magnet motor 41 of the second driving group that are rotating are AC voltages, and the peak value is calculated by the following equation.

  The motor induced voltage calculation unit 105 has a peak value Vm1 of the induced voltage between the terminals of the permanent magnet motor 31 of the first drive group and a peak value Vm2 of the induced voltage between the terminals of the permanent magnet motor 41 of the second drive group. Is output as the peak value Vm of the induced voltage between the terminals of the permanent magnet motor.

In the railway vehicle drive control apparatus according to the fifth embodiment of the present invention, when starting operation of the railway vehicle drive control apparatus, on / off of a charging switch, on / off of an AC circuit switch, DC circuit Voltage, ON / OFF of motor circuit switch of first drive group, ON / OFF of motor circuit switch of second drive group, operation / stop of converter, operation / stop of inverter of first drive group, second drive FIG. 14 and FIG. 15 show examples of timing diagrams with the elapsed time as the horizontal axis for the operation / stop of the group inverters.

  FIG. 14 shows an example where the DC circuit voltage Vdc is equal to or higher than the peak value Vm of the induced voltage between the terminals of the permanent magnet motors 31 and 41 when the AC circuit switch 18 is turned on. In this case, the first drive The motor circuit switch 35 of the group and the motor circuit switch 45 of the second drive group are turned on at the same timing as the AC circuit switch 18, and then the converter 12 starts operating, and then the inverter 32 of the first drive group. And the inverter 42 of the second drive group starts operating.

  FIG. 15 shows an example in which the DC circuit voltage Vdc is less than the peak value Vm of the induced voltage between the terminals of the permanent magnet motors 31 and 41 when the AC circuit switch 18 is turned on. After the converter 18 is turned on, the converter 12 starts operating to convert the AC voltage of the transformer secondary winding 5 and raise the DC circuit voltage. When the DC circuit voltage exceeds the peak value Vm of the induced voltage between the terminals of the permanent magnet motors 31 and 41, the motor circuit switch 35 of the first drive group and the motor circuit switch 45 of the second drive group are turned on. . Thereafter, the inverter 32 of the first drive group and the inverter 42 of the second drive group start operation.

  Other operations are the same as those in the configuration example of the control circuit of the railway vehicle drive control device according to the first embodiment of the present invention shown in FIGS.

  According to the railway vehicle drive control apparatus of the fifth embodiment of the present invention, the motor circuit switch 35 of the first drive group and the first switch in the state where the permanent magnet motors 31 and 41 generate an induced voltage during traveling. Even when the motor circuit switch 45 of the second drive group is turned on, the DC circuit voltage is always applied to the first drive group at the timing of turning on the motor circuit switch 35 of the first drive group and the motor circuit switch 45 of the second drive group. Since the induced voltage between the terminals of the permanent magnet motor 31 and the induced voltage between the terminals of the permanent magnet motor 41 of the second drive group are equal to or larger than the larger peak value, the switching elements of the inverter are in reverse parallel A current flows from the permanent magnet motor of the first drive group and the permanent magnet motor of the second drive group to the smoothing capacitor of the DC circuit via the diode, and each permanent magnet motor generates a torque shock. It can be prevented.

  Note that in the railway vehicle drive control apparatus according to the fifth embodiment of the present invention shown in FIG. 10, the number of permanent magnet motors for which one railway vehicle drive control apparatus performs drive control is shown as two. However, when the number of permanent magnet motors is increased from two to three or four, a configuration in which a third drive group and a fourth drive group are added as drive groups to the configuration of FIG. This is only an increase in the number of drive groups, and the operation of each part in the embodiment of the present invention is the same.

  (Sixth Embodiment) A railcar drive control apparatus according to a sixth embodiment of the present invention will be described with reference to FIGS. The railway vehicle drive control device shown in FIG. 16 includes an alternating current detector 9, a charging switch 10, a charging circuit resistor 11, a converter 12, a smoothing capacitor 14, a voltage detector 15, a permanent magnet motor 21, an inverter 22, and a current. The detectors 24U to 24W, the motor circuit switch 25, and the rotation detector 26 are combined to form the same control group as the railway vehicle drive control device shown in FIG. It is the structure which has 2 sets. Hereinafter, the respective control groups will be referred to as a first control group 51 and a second control group 52 for explanation.

  In FIG. 16, the main circuit transformer T has two sets of secondary windings, and the circuit of the first control group 51 is connected to the first transformer secondary winding 5A. The circuit of the second control group 52 is connected to the second transformer secondary winding 5B.

  FIG. 17 is a diagram showing a configuration example of a control circuit of the railway vehicle drive control device according to the sixth embodiment of the present invention shown in FIG. In FIG. 17, in order to facilitate understanding of the operation of the embodiment of the present invention, signals related to the description of the operation of the embodiment of the present invention are input to the control unit 103 and output from the control unit 103. Only listed.

  The control unit 103 performs the operation shown in FIGS. 3 to 6 for each control group with respect to the input signal from the first control group 51 and the input signal from the second control group 52, and the first control group An output signal to 51 and an output signal to the second control group 52 are output. About another component and operation | movement, it is the same as that of the rail vehicle drive control apparatus of the 1st Embodiment of this invention, and the effect of this invention can be acquired similarly.

  In FIG. 17, the control unit 103 is described as an example in which there is one control unit 103 for a plurality of control groups. However, the control unit 103 includes the input / output signals related to the first control group 51. A configuration may be provided in which the first control group control unit and the second control group control unit having input / output signals related to the second control group 52 are provided separately.

  Further, the internal configurations of the first control group 51 and the second control group 52 of the railway vehicle drive control device shown in FIG. 16 are similar to those of the rail vehicle drive control device shown in FIG. Charging switch 10, charging circuit resistor 11, converter 12, smoothing capacitor 14, voltage detector 15, AC circuit switch 18, permanent magnet motor 31 of the first drive group, inverter 32 of the first drive group, and first Drive group current detectors 34U to 34W, first drive group motor circuit switch 35, first drive group rotation detector 36, second drive group permanent magnet motor 41, second drive group inverter 42, The current detectors 44U to 44W in the second drive group, the motor circuit switch 45 in the second drive group, and the rotation detector 46 in the second drive group may be combined. In this case, in the configuration of the control unit 103 and the control circuit shown in FIG. 17, the first control group and the first control group 103 are replaced with the output signals 124U to 124W corresponding to the detection values of the current detectors 24U to 24W. From each of the two control groups, output signals 134U to 134W corresponding to the detection values of the current detectors 34U to 34W of the first drive group and output signals 144U to 144W corresponding to the detection values of the current detectors 44U to 44W of the second drive group are input. Further, instead of the output signal 126 of the rotation detector 26, the output signal 36 of the rotation detector 36 of the first drive group and the output signal 46 of the rotation detector 46 of the second drive group are inputted, and further, the motor circuit Instead of the relay 104c of the control circuit that supplies power to the driving operation coil 125 of the switch 25 and the motor circuit switch input command signal, the controller 103 controls the first control group and the first control group. For each control group, a control circuit relay that supplies power to the drive operation coil 135 of the motor circuit switch 35 of the first drive group and a power supply to the drive operation coil 145 of the motor circuit switch 45 of the second drive group And a control circuit relay for supplying the first drive group, and a motor circuit switch input command signal for the second drive group and a motor circuit switch input command signal for the second drive group.

  Furthermore, in the railway vehicle drive control apparatus according to the sixth embodiment of the present invention shown in FIGS. 16 and 17, the number of permanent magnet motors 21 to be controlled by one railway vehicle drive control apparatus is two. Although shown as a configuration, when the number of permanent magnet motors 21 is increased from two to three or four, the third control group, the fourth control group, and the control group are further added to the configurations of FIGS. 16 and 17. The third transformer secondary winding and the fourth transformer secondary winding are added. This is only an increase in the number of control groups, and the operation of each part in the present embodiment is the same.

  In the railway vehicle drive control apparatus according to the second to sixth embodiments of the present invention, the contacts of the motor circuit switches 25, 35, 45 are the inverters 22, 32, 42 and the permanent magnet motor. Although the contact is provided in all of the three-phase AC circuits between 21, 31, and 41, the motor circuit switch is for preventing current flowing through the three-phase circuit between the permanent magnet motor and the motor. Therefore, contacts may be provided in any two of the three phases, and the contacts of the motor circuit switches 25, 35, 45 are the inverters 22, 32, 42 and the permanent magnet motor 21. , 31, 41 are provided between the current detectors 24, 34, 44 of the three-phase AC circuit and the permanent magnet motors 21, 31, 41, and this contact is formed between the permanent magnet motor and the inverter. Is to prevent current between Et al., The contact may be provided between the inverter 22, 32 and 42 and the current detector 24, 34, 44.

  In the description of the railway vehicle drive control device according to the second to sixth embodiments of the present invention, the operation mechanism of the motor circuit switches 25, 35, and 45 is normally open (no drive operation coil is added). This is described in the case of a mechanism in which the contact is opened when pressure is applied. When the operation mechanism of the motor circuit switches 25, 35, 45 is normally closed (a mechanism in which the contact is turned on when the drive operation coil is not pressurized), the motor circuit input command output from the control unit 103 When the signal is inverted and there is no signal, the motor circuit switch is turned on, and when there is a signal, the motor circuit switch is opened.

Furthermore, the AC current detector 9 in the railway vehicle drive control apparatus according to the second to sixth embodiments of the present invention is a current of an AC circuit between the transformer secondary winding 5 and the converter 12. Therefore, it may be provided on either side of the AC circuit between the transformer secondary winding 5 and the converter 12.

  Moreover, in the railway vehicle drive control apparatus according to the third to sixth embodiments of the present invention, the contact of the motor circuit switch is shown as an example with one contact for each phase. However, similarly to the railway vehicle drive control apparatus shown in FIG. 7 described above, two motor circuit switches 25A and 25B may be provided so that the contacts are two in series with respect to each phase. good.

  Furthermore, in the railway vehicle drive control apparatus according to the second embodiment, the fifth embodiment, and the sixth embodiment of the present invention, the charging switch 10 is provided with the railway vehicle drive control shown in FIG. It is good also as a structure similar to an apparatus.

  (Seventh Embodiment) A railcar drive control apparatus according to a seventh embodiment of the present invention will be described with reference to FIGS. The railcar drive control device shown in FIG. 18 has a motor between a permanent magnet motor 21 and a motor circuit switch 25 instead of the rotation detector 26 as compared with the railcar drive device shown in FIG. A terminal voltage detector 27 is provided.

  When the motor circuit switch 25 is in an open state, no current flows through the permanent magnet motor 21, so that the induced voltage generated at each terminal of the permanent magnet motor 21 by the permanent magnet is three-phase (U phase, V phase, W phase). For this reason, the induced voltage of the permanent magnet motor 21 can be detected by detecting the voltage between any two terminals. In FIG. 18, it has described as a structure which detects the voltage between the U-phase terminal and V-phase terminal of the permanent magnet electric motor 21. FIG.

  19 to 21 are diagrams showing a configuration example of the control circuit of the railway vehicle drive control device shown in FIG. In FIG. 19, in order to facilitate understanding of the operation of the embodiment of the present invention, signals related to the description of the operation of the embodiment of the present invention are input to the control unit 103 and output from the control unit 103. Only listed. Compared with the configuration example of the control circuit of the railway vehicle drive control apparatus according to the first embodiment of the present invention shown in FIGS. 2 to 4, the control unit 103 has an output signal 126 instead of the rotation detector 26. In addition, an output signal 127 corresponding to a detection value of the motor terminal voltage detector 27 is inputted.

  The motor induced voltage calculation unit 105 receives the output signal 127 of the motor terminal voltage detector 27 and outputs the peak value Vm of the induced voltage between the terminals of the permanent magnet motor 21. When the motor circuit switch 25 is open and the rotor of the permanent magnet motor 21 is rotating, the terminal voltage V of the permanent magnet motor 21 induced by the magnetic flux of the permanent magnet is an alternating current as shown in FIG. Voltage. The peak value Vm of the induced voltage between the terminals of the permanent magnet motor 21 is obtained, for example, by the following calculation. First, timings T1 and T2 at which the terminal voltage V of the permanent magnet motor 21 which is a detection value of the motor terminal voltage detector 27 crosses zero voltage are obtained. For the voltage obtained by converting the terminal voltage V of the permanent magnet motor 21 into an absolute value, the maximum value Vmax of the voltage between the timings T1 and T2 is obtained, and the induced voltage between the terminals of the permanent magnet motor 21 is obtained by doubling this value. Is obtained. The timings T1 and T2 are updated every time it is detected that the terminal voltage V of the permanent magnet motor 21 crosses the zero voltage, and the timing T1 and T2 of the voltage obtained by converting the terminal voltage V of the permanent magnet motor 21 into an absolute value is updated. By obtaining the maximum value Vmax of the voltage between them, the peak value Vm of the induced voltage between the terminals of the permanent magnet motor 21 can always be obtained even when the rotation speed (vehicle speed) of the permanent magnet motor 21 changes. .

  Other components and operations are the same as those in the railway vehicle drive control apparatus according to the first embodiment of the present invention shown in FIGS.

  According to the railway vehicle drive control device of the seventh embodiment of the present invention, even when the motor circuit switch 25 is turned on while the permanent magnet motor 21 generates an induced voltage during traveling, the motor circuit switching is performed. Since the DC circuit voltage is always equal to or higher than the peak value of the induced voltage between the terminals of the permanent magnet motor 21 at the timing when the voltage generator 25 is turned on, the permanent magnet motor 21 is connected via the antiparallel diode of the switching element of the inverter 22. It is possible to prevent the permanent magnet motor 21 from generating a torque shock due to a current flowing through the smoothing capacitor 14 of the DC circuit.

  (Eighth Embodiment) FIG. 23 shows the configuration of a railway vehicle drive control apparatus according to an eighth embodiment of the present invention. The railway vehicle drive control apparatus shown in FIG. 18 is a motor circuit switch. As in the railway vehicle drive control device shown in FIG. 7, two motor circuit switches 25A and 25B are provided, and the contacts are in series with each other in two phases. This is a configured example.

  In this configuration, the motor circuit switch 25, the motor circuit switch drive operation coil 125, the relay 104c, and the motor circuit switch input command signal in FIGS. 18 to 21 are respectively supplied to the motor circuit switches 25A and 25B. Corresponding to the above, it is composed of two sets. Other components and operations are the same as those of the railway vehicle drive control apparatus according to the seventh embodiment of the present invention shown in FIG. 18, and the effects of the present invention can be obtained in the same manner.

  (Ninth Embodiment) FIG. 24 shows the configuration of a railway vehicle drive control apparatus according to a ninth embodiment of the present invention. The railway vehicle drive control apparatus shown in FIG. 18 is a charging switch. 10 is different, and the charging switch 10 is a charging circuit resistor in the AC circuit between the transformer secondary winding 5 and the converter 12 as in the railway vehicle drive control device shown in FIG. 11 is provided in the phase opposite to the phase in which 11 is provided. The charging switch 10 in the railway vehicle drive control device shown in FIG. 23 is turned on (turned on) before starting the converter 12 and is the reverse of the switching elements 13U to 13Y built in the converter 12. The smoothing capacitor 14 is charged by the current limited by the charging circuit resistor 11 via the parallel diode. After charging of the smoothing capacitor 14 is completed, the AC circuit switch 18 is turned on (on). At this time, the charging switch 10 is also turned on (on), and between the transformer secondary winding 5 and the converter 12. AC circuit is connected. Other components, operations and effects of the present invention are the same as those of the railway vehicle drive control device shown in FIGS. 18 to 21, and the effects of the present invention can be obtained similarly.

  (Tenth Embodiment) FIG. 25 is a diagram showing a railway vehicle drive control apparatus according to a tenth embodiment of the present invention. 18 differs from the railway vehicle drive control device shown in FIG. 18 in the configuration of a charging circuit that charges the smoothing capacitor 14 before starting the converter 12, and in the same manner as the railway vehicle drive control device shown in FIG. The resistor 11 is not provided, and is constituted by a transformer tertiary winding 6, a charging switch 10, a charging circuit step-up transformer 16, and a charging rectifier circuit 17. Other components, operations and effects of the present invention are the same as those of the railway vehicle drive control device shown in FIGS. 18 to 21, and the effects of the present invention can be obtained similarly.

  (Eleventh Embodiment) FIG. 26 is a diagram showing the configuration of a railway vehicle drive control apparatus according to an eleventh embodiment of the present invention. In the configuration of the railway vehicle drive control device shown in FIG. 26, the inverter, the permanent magnet motor, the current detector, the motor circuit switch, and the rotation detector are combined in the same manner as the railway vehicle drive control device shown in FIG. In the following, description will be made by referring to the first drive group and the second drive group, respectively.

  In FIG. 26, 37 is a motor terminal voltage detector of the first drive group, and 47 is a motor terminal voltage detector of the second drive group.

  27 to 29 are diagrams showing a configuration example of a control unit and a control circuit of the railway vehicle drive control device according to the eleventh embodiment of the present invention shown in FIG. In FIG. 27, in order to facilitate understanding of the operation of the embodiment of the present invention, signals relating to the description of the operation of the embodiment of the present invention are shown as signals input to the control unit 103 and output from the control unit 103. Only listed.

  Reference numeral 137 denotes an output signal corresponding to the detection value of the motor terminal voltage detector 37 of the first drive group, and reference numeral 147 denotes an output signal corresponding to the detection value of the motor terminal voltage detector 47 of the second drive group. Other constituent elements are the same as those in the railway vehicle drive control apparatus shown in FIGS.

  The motor induced voltage calculation unit 105 receives the output signal 137 of the motor terminal voltage detector 37 of the first drive group and the output signal 147 of the motor terminal voltage detector 47 of the second drive group as inputs, and outputs between the terminals of the permanent magnet motor. The peak value Vm of the induced voltage is output. When the motor circuit switch 35 of the first drive group and the motor circuit switch 45 of the second drive group are opened, the rotors of the permanent magnet motor 31 of the first drive group and the permanent magnet motor 41 of the second drive group respectively rotate. In this case, the terminal voltage V of each permanent magnet motor induced by the magnetic flux of the permanent magnet is an AC voltage similar to that shown in FIG.

  By the same calculation as the electric motor induced voltage calculation unit 105 in the railway vehicle drive control apparatus of the seventh embodiment of the present invention shown in FIG. 22 described above, the electric motor induced voltage calculation unit 105 of FIG. The peak value Vm1 of the induced voltage of the permanent magnet motor 31 of the first drive group and the peak value Vm2 of the induced voltage of the permanent magnet motor 41 of the second drive group are respectively calculated. The motor induced voltage calculation unit 105 calculates the larger one of the peak value Vm1 of the induced voltage of the permanent magnet motor 31 of the first drive group and the peak value Vm2 of the induced voltage of the permanent magnet motor 41 of the second drive group. It outputs as the peak value Vm of the induced voltage between the terminals of the permanent magnet motor. Other components and operations are the same as those of the railway vehicle drive control apparatus according to the seventh embodiment of the present invention shown in FIGS.

  According to the railway vehicle drive control apparatus of the eleventh embodiment of the present invention, the motor circuit switch 35 of the first drive group and the first switch in the state where the permanent magnet motors 31 and 41 generate an induced voltage during traveling. Even when the motor circuit switch 45 of the second drive group is turned on, the DC circuit voltage is always set to the first drive group at the timing of turning on the motor circuit switch 31 of the first drive group and the motor circuit switch 45 of the second drive group. Since the value of the induced voltage between the terminals of the permanent magnet motor 31 and the induced voltage between the terminals of the permanent magnet motor 41 of the second drive group is equal to or greater than the larger peak value, the switching elements of the inverters 32 and 42 Current flows from the permanent magnet motor 31 of the first drive group and the permanent magnet motor 41 of the second drive group to the smoothing capacitor 14 of the DC circuit through the antiparallel diodes of the permanent magnet motors 31, Possible to prevent the 1 generates a torque shock.

  In the railway vehicle drive control device shown in FIG. 26, the number of permanent magnet motors controlled by one rail vehicle drive control device is shown as two, but the number of permanent magnet motors is two. When the number is increased from three to four, the third drive group and the fourth drive group are added to the configuration of FIG. 26 as drive groups. This is only an increase in the number of drive groups, and the operation of each part in the embodiment of the present invention is the same.

  (Twelfth Embodiment) A railcar drive control apparatus according to a twelfth embodiment of the present invention will be described with reference to FIGS. The railway vehicle drive control device shown in FIG. 30 includes an alternating current detector 9, a charging switch 10, a charging circuit resistor 11, a converter 12, a smoothing capacitor 14, a voltage detector 15, a permanent magnet motor 21, an inverter 22, and a current. The detectors 24U to 24W, the motor circuit switch 25, and the motor terminal voltage detector 27 are combined to form the same configuration as the railway vehicle drive control device shown in FIG. This is a configuration having two sets of control groups. Hereinafter, the respective control groups will be referred to as a first control group 51 and a second control group 52 for explanation.

  FIG. 31 is a diagram showing a configuration example of a control circuit of the railway vehicle drive control device according to the twelfth embodiment of the present invention shown in FIG. In FIG. 31, in order to facilitate understanding of the operation of the embodiment of the present invention, signals relating to the description of the operation of the embodiment of the present invention as signals input to the control unit 103 and output from the control unit 103. Only listed.

  The control unit 103 is configured to control the input signal from the first control group 51 and the input signal from the second control group 52 with the railcar drive control device according to the seventh embodiment of the present invention described above for each control group. A similar operation is performed to output an output signal to the first control group 51 and an output signal to the second control group 52.

  Other components and operations are the same as those of the railroad vehicle drive control apparatus according to the seventh embodiment of the present invention shown in FIG. 18, and the effects of the present invention can be obtained similarly.

  In FIG. 30, the control unit 103 is described as an example in which there is one control unit 103 for a plurality of control groups. However, the control unit 103 includes the input / output signals related to the first control group 51. A configuration may be provided in which the first control group control unit and the second control group control unit having input / output signals related to the second control group 52 are provided separately.

  Further, the internal configuration of the first control group and the second control group of the railway vehicle drive control device shown in FIGS. 30 and 31 is similar to that of the railway vehicle drive control device shown in FIG. Even in the case of the configuration having the second drive group, the effect of the present embodiment can be obtained similarly.

  Furthermore, in the railway vehicle drive control apparatus shown in FIGS. 30 and 31, the number of permanent magnet motors that are controlled by one railway vehicle drive control apparatus is shown as two, but When the number is increased from two to three or four, the third control group, the fourth control group, the third transformer secondary winding and the fourth control group are further added to the configuration of FIGS. 30 and 31 as the control group. The transformer secondary winding is added. This is only an increase in the number of control groups, and the operation of each part in the present embodiment is the same.

  In the railway vehicle drive control device according to the eighth to twelfth embodiments of the present invention, the contact of the motor circuit switch 25 is a three-phase AC between the inverter 22 and the permanent magnet motor 21. Although it has been described that all the circuits are provided with contacts, the motor circuit switch 25 is for preventing a current flowing through the three-phase circuit between the inverter 22 and the permanent magnet motor 21, so that the three-phase Any one of the two phases may be provided with a contact, and the contact of the motor circuit switch 25 is permanently connected to the current detector 24 of the three-phase AC circuit between the inverter 22 and the permanent magnet motor 21. Although it is provided between the magnet motor 21 and this contact is for preventing a current between the permanent magnet motor 21 and the inverter 22, it is in contact between the inverter 22 and the current detector 24. You may have a child .

  In the description of the railway vehicle drive control device according to the eighth to twelfth embodiments of the present invention, the operation mechanism of the motor circuit switch 25 is normally open (when the drive operation coil is not pressurized, This is described in the case of a mechanism in which the contact is opened. When the operation mechanism of the motor circuit switch 25 is normally closed (a mechanism in which the contact is turned on when the driving operation coil is not pressurized), the motor circuit input command signal S04 output from the control unit 103 is inverted. When there is no signal, the motor circuit switch 25 is turned on, and when there is a signal, the motor circuit switch 25 is opened.

  Furthermore, the AC current detector 9 in the railway vehicle drive control apparatus according to the eighth to twelfth embodiments of the present invention is a current of an AC circuit between the transformer secondary winding 5 and the converter 12. Therefore, it may be provided on either side of the AC circuit between the transformer secondary winding 5 and the converter 12.

  Moreover, in the railway vehicle drive control apparatus according to the ninth to twelfth embodiments of the present invention, the contact of the motor circuit switch 25 is an example in which there is one contact for each phase. As shown in FIG. 23, two electric motor circuit switches may be provided in the same manner as the railway vehicle drive control device shown in FIG. 23, and two contacts may be arranged in series with respect to each phase.

  Furthermore, in the railway vehicle drive control apparatus according to the eighth embodiment, the eleventh embodiment, and the twelfth embodiment of the present invention, the charging switch 10 is controlled by the railway vehicle drive control shown in FIG. It is good also as a structure similar to an apparatus.

  (Thirteenth Embodiment) A railcar drive control apparatus according to a thirteenth embodiment of the present invention will be described with reference to FIGS. FIG. 32 shows the configuration of the railway vehicle drive control device according to the thirteenth embodiment of the present invention. Compared with the configuration of the railway vehicle drive control apparatus according to the first embodiment of the present invention shown in FIG. 1, there is no rotation detector 26 for detecting the rotation of the rotor of the permanent magnet motor 21. The other components are the same as those in the railway vehicle drive control device shown in FIG.

  FIG. 33 is a diagram showing a configuration example of a control circuit of the railway vehicle drive control device according to the thirteenth embodiment of the present invention shown in FIG. In FIG. 33, in order to make it easy to understand the operation of the embodiment of the present invention, as a signal input to the control unit 103 and output from the control unit 103, a signal related to the description of the operation of the embodiment of the present invention. Only listed. The output signal 126 of the rotation detector 26 is deleted from the configuration of the control circuit of the railway vehicle drive control apparatus shown in FIG. 2, and the other components are controlled by the railway vehicle drive control apparatus shown in FIG. It is the same as the circuit.

  FIG. 34 shows an example of the logic of the AC circuit switch input command signal S02 and the motor circuit switch input command signal S04 among the signals output from the control unit 103, and the voltage command value output unit 108 built in the control unit 103. It is the figure which showed the example of a structure of the motor circuit switch injection | throwing-in condition determination part 106 and the DC voltage command value output part 107. FIG. Alternatively, the logic of the motor circuit switch input command signal S04 may be configured as in the example of FIG.

  The voltage command value output unit 108 outputs an arbitrary value set in advance as the voltage command value Vc. Here, the preset arbitrary value may be a value equal to or higher than the peak value Vm of the induced voltage between the terminals due to the permanent magnet at the maximum number of rotations of the rotor of the permanent magnet motor 21 when the vehicle is running. This is a feature of the present invention.

The maximum rotation speed Nmax of the rotor of the permanent magnet electric motor 21 during the running of the vehicle is determined when the maximum driving speed of the vehicle, the diameter of the wheel, and the rotor are connected to the wheel axle by gears. Is determined by the gear ratio. The peak value Vmmax of the induced voltage between the terminals of the permanent magnet motor 21 at the maximum rotation speed Nmax can be obtained in advance from the following equation.

  The preset arbitrary value is set to an arbitrary value equal to or higher than the peak value Vmmax of the induced voltage between the terminals due to the permanent magnet at the maximum number of rotations of the permanent magnet motor 21 when the vehicle is running. For example, it is stored in a storage unit such as a nonvolatile memory.

DC voltage command value output unit 107 receives voltage command value Vc, which is the output of voltage command value output unit 108, and outputs voltage command value Vc to converter 12 as DC voltage command value 112.

The motor circuit switch input condition determination unit 106 receives the voltage command value Vc, which is the output of the voltage command value output unit 108, and the output signal 115 of the voltage detector 15, and outputs a motor circuit switch input permission signal S03. . The voltage Vdc of the DC circuit between the converter 12 and the inverter 22 corresponds to the output signal 115 of the voltage detector 15, and the motor circuit switch input permission signal S03 is output with the following logic.

  The converter 12 converts the AC voltage of the transformer secondary winding 5 into a DC voltage based on the DC voltage command value 112 and outputs it.

  Charging switch 10 on / off, AC circuit switch 18 on / off, DC circuit voltage, motor circuit switching when starting operation of the railway vehicle drive control apparatus of the thirteenth embodiment of the present invention FIG. 36 shows an example of a timing diagram with the elapsed time as the horizontal axis for the on / off of the converter 25, the operation / stop of the converter 12, and the operation / stop of the inverter 22. After the AC circuit switch 18 is turned on, the converter 12 starts to operate, converts the AC voltage of the transformer secondary winding 5 and raises the DC circuit voltage to the DC voltage command value 112 or more. When the DC circuit voltage becomes equal to or higher than the voltage command value Vc, the motor circuit switch 25 is turned on. Thereafter, the inverter 22 starts operating.

  According to the railway vehicle drive control apparatus of the thirteenth embodiment of the present invention, even when the motor circuit switch 25 is turned on while the permanent magnet motor 21 generates an induced voltage during traveling, the motor circuit switching is performed. Since the DC circuit voltage between the converter 12 and the inverter 22 is always greater than or equal to the peak value of the induced voltage between the terminals of the permanent magnet motor 21 at the timing when the voltage generator 25 is turned on, the switching elements of the inverter 22 are antiparallel. It is possible to prevent current from flowing from the permanent magnet motor 21 to the smoothing capacitor 14 of the DC circuit through the diode, and the permanent magnet motor 21 from generating torque shock. Furthermore, the rotation detector 26, the motor terminal voltage detector 27, and the motor induced voltage calculation unit 105, which are necessary for the railway vehicle drive control device according to the first to twelfth embodiments of the present invention, are unnecessary. Thus, the number of parts of the railway vehicle drive control device can be reduced, and the resulting size reduction and weight reduction can be obtained.

  Similarly, in the railway vehicle drive control apparatus according to the second to sixth embodiments of the present invention described above, the control unit 103 is configured in the same manner as in FIG. 33, and the control unit 103 has a built-in direct current. The voltage command value output unit 107, the motor circuit switch input condition determination unit 106, and the voltage command value output unit 108 are configured in the same manner as in the configuration example shown in FIG. 34 or 35, and the thirteenth embodiment of the present invention described above is performed. By making the operation similar to that of the railway vehicle drive control device of the form, the rotation detector 26, the motor terminal voltage detector 27, and the motor induced voltage calculation unit 105 become unnecessary, and the thirteenth embodiment of the present invention is implemented. The effect similar to that of the railway vehicle drive control device can be obtained.

  (14th Embodiment) A railcar drive control apparatus according to a 14th embodiment of the present invention will be described. The configuration of the railway vehicle drive control device of the fourteenth embodiment of the present invention is the same as that of the railway vehicle drive control device of the thirteenth embodiment of the present invention shown in FIG. 37, the switching condition signal 161 is input. The control unit 103 is configured as shown in the example of FIG. 38 or FIG. 39, and the operation of the voltage command value output unit 108 is different from that of the above-described railway vehicle drive control device according to the thirteenth embodiment of the present invention. .

  The voltage command value output unit 108 receives the switching condition signal 161, selects from a plurality of preset arbitrary values, and outputs it as a voltage command value Vc.

  Here, the voltage command value Vc is a value equal to or higher than the peak value Vmmax of the induced voltage between the terminals due to the permanent magnet at the maximum rotational speed of the permanent magnet electric motor 21 under the traveling condition of the vehicle. It is a feature of the present invention that a switching condition signal 161 such as the above is selected and switched from a plurality of arbitrary values set in advance.

  As an example, when there are two types of routes on which the vehicle travels and the maximum driving speed of each route is different, the route condition is used as a switching condition signal 161, and two arbitrary preset values are switched. In the case of outputting, the operation will be described below.

The maximum rotational speed Nmax of the rotor of the permanent magnet electric motor 21 in traveling of the vehicle is connected to the maximum driving speed of the vehicle on the predetermined traveling route, the diameter of the wheel, and the rotor is connected to the wheel axle by a gear. If it is, the gear ratio is determined. As an example, when the traveling routes are two types of route 1 and route 2, the peak value of the induced voltage between the terminals of the permanent magnet motor 21 at the maximum rotation speed Nmax on each route is obtained in advance from the following equation. Can do.

  The peak value Vmmax1 of the induced voltage between the terminals of the permanent magnet motor 21 having the highest rotational speed on the route 1 and the peak value of the induced voltage between the terminals of the permanent magnet motor 21 having the highest rotational speed on the route 2 calculated in advance. Based on Vmmax2, arbitrary value 1 is set to a value equal to or higher than Vmmax1, arbitrary value 2 is set to a value equal to or higher than Vmmax2, and arbitrary value 1 and arbitrary value 2 are stored in a storage unit such as a nonvolatile memory, for example. Saved in.

  The voltage command value Vc is selected by the switching condition signal 161 depending on whether the route on which the vehicle travels is the route 1 or the route 2, and when traveling on the route 1, the voltage command value Vc outputs the above-described arbitrary value 1 When the vehicle travels on the route 2, the voltage command value Vc is output with the above-described arbitrary value 2.

  Here, the switching condition signal 161 may be input to the railway vehicle drive control device by, for example, an operation of a railway vehicle driver, or may be a signal output from another device mounted on the railway vehicle. Also good.

  In another embodiment, the switching condition signal 161 may be configured such that the maximum driving speed condition in the vehicle driving conditions such as speed limit is set as the switching condition signal 161. When the route 1 is replaced with the maximum operating speed 1 and the route 2 is replaced with the maximum operating speed 2, the value of the voltage command value Vc can be changed and output according to the driving conditions of the vehicle.

  As a result of the above operation, when the vehicle is traveling under a condition where the maximum operation speed is low, when the motor circuit switch 25 is turned on, it is not necessary to make the DC voltage converted by the converter 12 larger than necessary. The operating state can be optimized according to the operating conditions.

  In the railway vehicle drive control apparatus according to the fourteenth embodiment of the present invention, even when the motor circuit switch 25 is turned on while the permanent magnet motor 21 generates an induced voltage during traveling, the motor circuit switch Since the DC circuit voltage is always equal to or higher than the peak value of the induced voltage between the terminals of the permanent magnet motor 21 at the timing of turning on 25, the DC from the permanent magnet motor 21 via the antiparallel diode of the switching element of the inverter 22 is used. It can be prevented that a current flows through the smoothing capacitor 14 of the circuit and the permanent magnet motor 21 generates a torque shock. Further, by changing the value of the voltage command value Vc according to the driving condition of the vehicle such as the route to travel and the maximum speed, the operation state of the converter 12 when the motor circuit switch 25 is turned on can be optimized. Furthermore, the rotation detector 26, the motor terminal voltage detector 27, and the motor induced voltage calculation unit 105 that require the railway vehicle drive control device according to the first to twelfth embodiments of the present invention are unnecessary. Thus, the number of parts of the railway vehicle drive control device can be reduced, and the resulting size reduction and weight reduction can be obtained.

  Similarly, with respect to the railway vehicle drive control devices according to the second to sixth embodiments of the present invention described above, the control unit 103 and the DC voltage command value output unit 107 and the motor circuit built in the control unit 103 are also included. The switch application condition determination unit 106 and the voltage command value output unit 108 have the same configuration as the configuration example shown in FIGS. 37 to 39, and are the same as those in the railway vehicle drive control device according to the fourteenth embodiment of the present invention described above. By making the operation, the rotation detector, the motor terminal voltage detector, and the motor induced voltage calculation unit become unnecessary, and the same effect as the railway vehicle drive control device of the fourteenth embodiment of the present invention can be obtained. Can do.

  (15th Embodiment) A railcar drive control apparatus according to the 15th embodiment of the present invention will be described. The configuration of the railway vehicle drive control device of the fifteenth embodiment of the present invention is the same as that of the railway vehicle drive control device of the fourth embodiment of the present invention shown in FIG. And the operation is different.

  FIG. 40 shows a configuration example of the control unit 103 and a configuration example of the control circuit. 162 represents an operation start command. Other components of the control unit 103 are the same as those of the configuration example of the control unit and the control circuit of the railway vehicle drive control device according to the first embodiment of the present invention shown in FIG.

  In FIG. 41, among the signals output by the control unit 103, examples of logic of the charging switch input command signal S10, the motor circuit switch input command signal S02, and the AC circuit switch input command signal S04, and the control unit 103 shows a configuration example of an electric motor induced voltage calculation unit 105 and an electric motor circuit switch input condition determination unit 106 built in 103.

  The electric motor induced voltage calculation unit 105 receives the output signal 126 of the rotation detector 26 as an input, and the peak of the induced voltage between the terminals of the permanent magnet electric motor 21 by the calculation described in the above formulas (1) to (3). The value Vm is calculated and output.

The motor circuit switch input condition determining unit 106 receives the peak value Vm of the induced voltage between the terminals of the permanent magnet motor 21 and the output signal 115 of the DC voltage detector 15 as outputs of the motor induced voltage calculation unit 105. Then, the motor circuit switch closing permission signal S03 is output. The voltage Vdc of the DC circuit between the converter 12 and the inverter 22 corresponds to the output signal 115 of the DC voltage detector 15, and the motor circuit switch input permission signal S03 is output with the following logic.

  The charging switch input command signal S10 is output, for example, according to the logic of the example shown in FIG. 41 based on the operation start command 162 and a failure detection signal detected by the protection detection function. Here, the operation start command 162 is a command signal for starting the operation of the railway vehicle drive control apparatus, and may be input to the railway vehicle drive control apparatus by an operation of the vehicle driver, or It may be a signal output from another installed device.

  The motor circuit switch input command signal S02 is output, for example, according to the logic of the example shown in FIG. 41 by the operation start command 162, the failure detection signal S05 detected by the protection detection function, and the motor circuit switch input permission signal S03. .

  The AC circuit switch input command signal S04 is output, for example, according to the logic of the example shown in FIG. 41 by the operation start command 162, the failure detection signal S05 detected by the protection detection function, and the charging switch input command signal S10. .

  The charging switch 10 is turned on / off, the motor circuit switch 25 is turned on / off, and the AC circuit switch 18 is turned on when the operation of the railway vehicle drive control apparatus according to the fifteenth embodiment of the present invention is started. FIG. 42 shows an example of a timing diagram with the elapsed time as the horizontal axis for OFF, DC circuit voltage, converter 12 operation / stop, and inverter 22 operation / stop. When the operation start command 162 is input, the charging switch 10 is turned on under the condition that the protection detection function has not detected a failure. When the charging switch 10 is turned on, the smoothing capacitor 14 of the DC circuit between the converter 12 and the inverter 22 is charged through the charging circuit. When the DC circuit voltage Vdc between the converter 12 and the inverter 22 exceeds the peak value Vm of the induced voltage between the terminals of the permanent magnet motor 21, the motor circuit switch input permission signal S03 = 1 is obtained, and the motor circuit switch 25 is obtained. Is inserted. The charging switch 10 is turned off and the AC circuit switch 18 is turned on when a preset single shot time Tch1 has elapsed in consideration of the values of the smoothing capacitor 14 and the charging circuit resistor 11.

  According to the railway vehicle drive control device of the fifteenth embodiment of the present invention, even when the motor circuit switch 25 is turned on while the permanent magnet motor 21 generates an induced voltage during traveling, the motor circuit switching is performed. Since the voltage of the DC circuit between the converter 12 and the inverter 22 is always greater than or equal to the peak value of the induced voltage between the terminals of the permanent magnet motor 21 at the timing when the voltage generator 25 is turned on, the switching element of the inverter 22 is reversed. It is possible to prevent current from flowing from the permanent magnet motor 21 to the smoothing capacitor 14 of the DC circuit through the parallel diode and the permanent magnet motor 21 from generating torque shock.

  In the railway vehicle drive control device of the present embodiment, the rotation detector 26 is deleted, and instead, a motor terminal voltage detector 27 is provided at the terminal of the permanent magnet motor 21 and configured in the same manner as in FIG. it can. In that case, in FIG. 40 and FIG. 41, the configuration of the control unit 103 inputs the output signal 127 of the motor terminal voltage detector 27 instead of the output signal 126 of the rotation detector, and the motor induced voltage calculation unit 105 In FIG. 22, the peak value Vm of the induced voltage between the terminals of the permanent magnet motor 21 is calculated by performing the same calculation as that of the electric motor induced voltage calculation unit 105 in the railway vehicle drive control device according to the seventh embodiment of the present invention. It is set as the structure to output. This also provides the same operations and effects as the present embodiment.

  (Sixteenth Embodiment) A railcar drive control apparatus according to a sixteenth embodiment of the present invention will be described. The configuration of the railway vehicle drive control device according to the sixteenth embodiment of the present invention is the same as that of the railway vehicle drive control device according to the fifteenth embodiment of the present invention shown in FIGS. 103 is different from the logic operation of the signal output from the control unit 103.

  FIG. 43 shows an example of the logic of the charging switch input command signal, the motor circuit switch input command signal, and the AC circuit switch input command signal among the signals output by the control unit 103 in the present embodiment. The structural example of the motor induced voltage calculating part 105 and the motor circuit switch making condition determination part 106 which the control part 103 contains is shown.

  The charging switch 10 is turned on / off, the motor circuit switch 25 is turned on / off, and the AC circuit switch 18 is turned on when the operation of the railway vehicle drive control apparatus according to the sixteenth embodiment of the present invention is started. 44 and 45 show examples of timing diagrams with the elapsed time as the horizontal axis for off, DC circuit voltage, converter 12 operation / stop, and inverter 22 operation / stop.

  FIG. 44 shows that the DC circuit voltage Vdc between the converter 12 and the inverter 22 becomes the peak value Vm of the induced voltage between the terminals of the permanent magnet motor 21 until the single shot time Tch2 has elapsed after the charging switch 10 is turned on. This is an example of the above case. In this case, when the motor circuit switch insertion permission signal S03 is output, the motor circuit switch 25 is turned on, and the charging switch 10 is turned off after elapse of a preset single shot time Tch2, and the AC circuit The switch 18 is turned on.

  FIG. 45 shows the peak value of the induced voltage between the terminals of the permanent magnet motor 21 when the DC switch voltage Vdc between the converter 12 and the inverter 22 is reached when the single shot time Tch2 has elapsed after the charging switch 10 is turned on. This is an example in which the motor circuit switch closing permission signal S03 is not output because it is less than Vm. In this case, even after the single shot time Tch2 has elapsed, the charging switch 10 is turned on until the time Tch3 when the motor circuit switch turn-on permission signal S03 is output, and the motor circuit switch turn-on permission signal S03. Is output, the motor circuit switch 25 is turned on, the charging switch 10 is turned off, and the AC circuit switch 18 is turned on.

  According to the railway vehicle drive control device of the present embodiment, the motor circuit switch 25 is turned on even when the motor circuit switch 25 is turned on while the permanent magnet motor 21 generates an induced voltage during traveling. At the timing, the voltage of the DC circuit between the converter 12 and the inverter 22 is always greater than or equal to the peak value of the induced voltage between the terminals of the permanent magnet motor 21, and therefore via the anti-parallel diode of the switching element of the inverter 22. It can be prevented that a current flows from the permanent magnet motor 21 to the smoothing capacitor 14 of the DC circuit and the permanent magnet motor 21 generates a torque shock.

  In the railway vehicle drive control device according to the present embodiment, the rotation detector 26 can be deleted and a motor terminal voltage detector 27 can be provided instead at the terminal of the permanent magnet motor 21 instead. In this case, the configuration of the control unit 103 is such that the output signal 127 of the motor terminal voltage detector 27 is input instead of the output signal 126 of the rotation detector in FIG. 43, and the motor induced voltage calculation unit 105 is The peak value Vm of the induced voltage between the terminals of the permanent magnet motor 21 is calculated by performing the same calculation as that of the electric motor induced voltage calculation unit 105 in the railway vehicle drive control device according to the seventh embodiment of the present invention described in FIG. It is set as the structure to output. This also provides the same operations and effects as the present embodiment.

  (Seventeenth Embodiment) FIG. 46 is a diagram showing the configuration of a railway vehicle drive control apparatus according to a seventeenth embodiment of the present invention. 10A is a first charging switch, 10B is a second charging switch, and 16 is a charging circuit step-up transformer. The charging circuit step-up transformer 16 is configured such that the low-voltage side winding is a winding having a different step-up ratio. In FIG. 46, the terminal of the winding having the lower step-up ratio is the first charging switch. 10A is connected to the tertiary winding 6 of the main circuit transformer T, and the terminal of the winding having the larger step-up ratio is connected to the tertiary of the main circuit transformer T via the second charging switch 10B. Connected to winding 6. Other components are the same as those of the railway vehicle drive control apparatus according to the fourth embodiment of the present invention shown in FIG. FIG. 47 shows the configuration of the control circuit in the present embodiment. 110A is a first charging switch driving operation coil, 110B is a second charging switch driving operation coil, and 104f and 104g are relays that supply power to the respective driving operation coils. Other components are the same as those of the control circuit shown in FIG.

  Of the signals output from the control unit 103, a first charging switch input command signal S10-1, a second charging switch input command signal S10-2, an electric circuit switch input command signal S02, FIG. 48 shows an example of the logic of the AC circuit switch input command signal S04, and a configuration example of the motor induced voltage calculation unit 105 and the motor circuit switch input condition determination unit 106 built in the control unit 103.

  ON / OFF of first charging switch 10A, ON / OFF of second charging switch 10B, and motor when starting operation of a railway vehicle drive control device of a seventeenth embodiment of the present invention Example of timing chart with elapsed time as horizontal axis for circuit switch 25 on / off, AC circuit switch 18 on / off, DC circuit voltage, converter 12 operation / stop, inverter 22 operation / stop It is shown in FIG. 49 and FIG.

  49 shows that the DC circuit voltage Vdc between the converter 12 and the inverter 22 is the induced voltage between the terminals of the permanent magnet motor 21 until the single shot time Tch4 elapses after the first charging switch 10A is turned on. This is an example when the peak value is Vm or more. In this case, when the motor circuit switch insertion permission signal S03 is output, the motor circuit switch 25 is turned on, and the first charging switch 10A is turned off after the preset single shot time Tch4 has elapsed. The AC circuit switch 18 is turned on. In this case, the second charging switch 10B is not turned on.

  FIG. 50 shows that the DC circuit voltage Vdc between the converter 12 and the inverter 22 is the induced voltage between the terminals of the permanent magnet motor 21 when the single shot time Tch4 has elapsed after the first charging switch 10A is turned on. This is an example in which the motor circuit switch closing permission signal S03 is not output because the peak value is less than Vm. In this case, the second charging switch 10B is turned on after the single shot time Tch4 has elapsed, so that the first charging switch 10A is turned on for the winding on the boost side of the charging circuit step-up transformer 16. In order to output a voltage larger than the case, the DC circuit voltage Vdc between the converter 12 and the inverter 22 is further charged, and the motor circuit is opened and closed when the induced voltage peak value Vm between the terminals of the permanent magnet motor 21 is exceeded. A container insertion permission signal S03 is output. When the motor circuit switch input permission signal S03 is output, the motor circuit switch 25 is turned on, the second charging switch 10B is turned off, and the AC circuit switch 18 is turned on.

  In the railway vehicle drive control device of the present embodiment, the rotation detector 26 is deleted, and instead, a motor terminal voltage detector 27 is provided at the terminal of the permanent magnet motor 21, and the motor terminal voltage detector 27 is shown in FIG. It can be configured in the same manner. In that case, the configuration of the control unit 103 is such that the output signal 127 of the motor terminal voltage detector 27 is input instead of the output signal 126 of the rotation detector 26 in FIG. 47 and FIG. The peak value Vm of the induced voltage between the terminals of the permanent magnet motor 21 is calculated by performing the same calculation as that of the electric motor induced voltage calculation unit 105 in the railway vehicle drive control apparatus according to the seventh embodiment of the present invention described in FIG. Is output.

  (Eighteenth Embodiment) FIG. 51 shows the configuration of a railway vehicle drive control apparatus according to an eighteenth embodiment of the present invention. In FIG. 51, reference numeral 28 denotes an auxiliary power supply device, which supplies, for example, a three-phase AC voltage 440V, a constant voltage with a frequency of 60 Hz, and an AC voltage with a constant frequency to the auxiliary power circuit 29 of the railway vehicle as a power source for equipment mounted on the railway vehicle. Is output and supplied. 10A is a first charging switch, 10B is a second charging switch, 11 is a charging circuit resistor, and 16 is a charging circuit step-up transformer. Reference numeral 17 denotes a charging rectifier circuit. The charging circuit step-up transformer 16 has a low-voltage side winding connected to the auxiliary power circuit 29 via the second charging switch 10B, and boosts the voltage of the auxiliary power circuit to form the transformer secondary winding. A voltage having a magnitude of 5 or more is output. Other components are the same as those of the railroad vehicle drive control device of the seventeenth embodiment described above. The configuration example of the control unit 103 is the same as that shown in FIGS. 47 and 48 described above.

  When the operation of the railway vehicle drive control device of the present embodiment is started, the first charging switch 10A is turned on / off, the second charging switch 10B is turned on / off, and the motor circuit switch 25 is turned on / off. For the on / off, the on / off of the AC circuit switch 18, the DC circuit voltage, the operation / stop of the converter 12, and the operation / stop of the inverter 22, the timing with the elapsed time as the horizontal axis is the above-described FIG. 49 and FIG. It is the same.

  When the first charging switch 10A is turned on, the smoothing capacitor 14 of the DC circuit between the converter 12 and the inverter 22 is switched from the transformer secondary winding 5 to the switching element of the charging circuit resistor 11 and the converter 12. It is charged via the antiparallel diode. As the charging time of the first charging switch 10A, a single shot time Tch4 is set in consideration of the value of the charging circuit resistor 11 and the capacitance of the smoothing capacitor 14 in advance. When the voltage Vdc of the DC circuit between the converter 12 and the inverter 22 becomes equal to or higher than the peak value Vm of the induced voltage between the terminals of the permanent magnet motor 21 before the single shot time Tch4 elapses, FIG. When the motor circuit switch insertion permission signal S03 is output, the motor circuit switch 25 is turned on, and the first charging switch 10A is turned off after the single shot time Tch4 has elapsed, and the AC circuit The switch 18 is turned on. In this case, the second charging switch 10B is not turned on.

  The DC circuit voltage Vdc between the converter 12 and the inverter 22 becomes the peak value of the induced voltage between the terminals of the permanent magnet motor 21 when the single shot time Tch4 has elapsed after the first charging switch 10A is turned on. When it is less than Vm and the motor circuit switch closing permission signal S03 is not output, the operation is the same as in FIG. When the second charging switch 10B is turned on after the single shot time Tch4 has elapsed, the voltage between the converter 12 and the inverter 22 is increased by the voltage obtained by boosting the voltage of the auxiliary power circuit 29 by the charging circuit step-up transformer 16. When the DC circuit voltage Vdc is further charged and becomes equal to or higher than the peak value Vm of the induced voltage between the terminals of the permanent magnet motor 21, the motor circuit switch closing permission signal S03 is output. When the motor circuit switch input permission signal S03 is output, the motor circuit switch 25 is turned on, the second charging switch 10B is turned off, and the AC circuit switch 18 is turned on.

  In the railway vehicle drive control apparatus of the present embodiment, the rotation detector 26 is deleted, and instead, a motor terminal voltage detector 27 is provided at the terminal of the permanent magnet motor 21, and the motor terminal voltage detector 27 is shown in FIG. It can be configured in the same manner. In that case, the configuration of the control unit 103 is that the output signal 127 of the motor terminal voltage detector 27 is input instead of the output signal 126 of the rotation detector in FIGS. 47 and 48, and the motor induced voltage calculation unit 105 is The peak value Vm of the induced voltage between the terminals of the permanent magnet motor 21 is calculated by performing the same calculation as that of the electric motor induced voltage calculation unit 105 in the railway vehicle drive control device according to the seventh embodiment of the present invention described in FIG. It is set as the structure to output.

  According to the railway vehicle drive control device of the seventeenth and eighteenth embodiments of the present invention, even when the motor circuit switch 25 is turned on while the permanent magnet motor 21 generates an induced voltage during traveling, Since the voltage of the DC circuit between the converter 12 and the inverter 12 is always greater than the peak value of the induced voltage between the terminals of the permanent magnet motor 21 at the timing when the motor circuit switch 25 is turned on, the switching of the inverter 22 It is possible to prevent current from flowing from the permanent magnet motor 21 to the smoothing capacitor 14 of the DC circuit through the antiparallel diode of the element and causing the permanent magnet motor 21 to generate a torque shock.

  In the railway vehicle drive control device according to the fifteenth to eighteenth embodiments of the present invention, the contact of the motor circuit switch 25 is a three-phase alternating current between the inverter 22 and the permanent magnet motor 21. Although it has been described that all the circuits are provided with contacts, the motor circuit switch 25 is for preventing a current flowing through the three-phase circuit between the inverter 22 and the permanent magnet motor 21, so that the three-phase Any one of the two phases may be provided with a contact, and the contact of the motor circuit switch 25 is a current detector 24 and a permanent magnet of a three-phase AC circuit between the inverter 22 and the permanent magnet motor 21. The contact is provided between the inverter 21 and the current detector 24 because the contact is provided to prevent a current between the permanent magnet motor 21 and the inverter 22. It may be provided .

  In the description of the railway vehicle drive control device according to the fifteenth to eighteenth embodiments of the present invention, the operation mechanism of the motor circuit switch 25 is normally open (when the drive operation coil is not pressurized, This is described in the case of a mechanism in which the contact is opened. When the operation mechanism of the motor circuit switch 25 is normally closed (a mechanism in which the contact is turned on when the drive operation coil is not pressurized), the motor circuit turn-on command signal S02 output from the control unit 103 is inverted. When there is no signal, the motor circuit switch 25 is turned on, and when there is a signal, the motor circuit switch 25 is opened.

  Furthermore, the AC current detector 9 in the railway vehicle drive control apparatus according to the fifteenth to eighteenth embodiments of the present invention is the current of the AC circuit between the transformer secondary winding 5 and the converter 12. Therefore, it may be provided on either side of the AC circuit between the transformer secondary winding 5 and the converter 12.

  Moreover, in the railway vehicle drive control apparatus according to the fifteenth to eighteenth embodiments of the present invention, the contact of the motor circuit switch 25 is an example in which there is one contact for each phase. As shown in FIG. 23, two motor circuit switches 25A and 25B are provided in the same manner as the railway vehicle drive control device shown in FIG. 23, and the contacts are arranged in series with each phase. Also good.

  Furthermore, in the railway vehicle drive control apparatus according to the fifteenth to eighteenth embodiments of the present invention, as with the railway vehicle drive control apparatus shown in FIG. 10, the inverter 22, the permanent magnet motor 21, and the current detection are performed. When the motor 26 and the motor circuit switch 25 are combined to form a unit drive group and a plurality of drive groups are provided, or in the same manner as the railway vehicle drive control device shown in FIG. A plurality of secondary windings 5 of the circuit transformer T are provided to provide an AC circuit switch 18, a converter 12, a smoothing capacitor 14, a DC voltage detector 15, an inverter 22, a permanent magnet motor 21, a current detector 26, and a motor circuit switch. Even when the control group is configured by combining 25 and configured as a single unit, the effect of the present invention can be similarly obtained.

  (Nineteenth Embodiment) FIG. 51 showing the configuration of a railway vehicle drive control device according to a nineteenth embodiment of the present invention shows a case where the overhead line 1 which is the power source of the rail vehicle drive control device is an AC power supply. Although described in the example, as a modification, when the overhead line as the power source of the railway vehicle drive control device is a DC power source, the transformer primary winding 4, the transformer secondary winding 5, and the AC current The detector 9 and the converter 12 are not necessary, and for example, the configuration shown in FIG. In this case, the positive side of the circuit on the DC side of the inverter 22 is connected to the DC circuit breaker 62, the charging switch 10, the charging circuit resistor 11, the DC circuit switch 63, and the smoothing reactor 64. 61, and the ground side of the circuit on the DC side of the inverter 22 is connected to the rail 8, which is a return line, via the wheel 7. Even in such a configuration, the control unit 103 switches on / opens the DC circuit switch 63 instead of the AC circuit switch 18, and controls the other components of the railway vehicle drive control according to the eighteenth embodiment. By performing the same operation as the apparatus, even when the overhead line 61 that is the power source of the railway vehicle drive control device is a DC power source, the effect of the present invention can be similarly obtained.

  (20th Embodiment) A railcar drive control apparatus according to a 20th embodiment of the present invention will be described. FIG. 53 shows the configuration of a railway vehicle drive control apparatus according to a twentieth embodiment of the present invention, in which 61 is an overhead wire that is a DC power source of the railway vehicle drive control apparatus, 2 is a current collector, and 62 is a DC circuit. Circuit breaker 63, DC circuit switch, 10A first charging switch, 11 charging circuit resistor, 64 smoothing reactor, 65A rectifier, 65B switching element, 28 auxiliary power supply, 29 The auxiliary circuit 10B is a second charging switch, and the other components are the same as those in the railway vehicle drive control apparatus according to the eighteenth embodiment of the present invention shown in FIG.

  FIG. 54 shows a configuration example of the control circuit in this embodiment. 54 deletes the output signal 109 of the AC current detector 9 from FIG. 47 described above, and replaces the drive operation coil 118 of the AC circuit switch 18 with the drive operation coil 163 of the DC circuit switch 63. This is a configuration provided. Of the signals output from the control unit 103, the logic of the first charging switch input command signal S10-1, the logic of the second charging switch input command signal S10-2, and the motor circuit switch FIG. 55 shows an example of each of the logic of 25 and the logic of the DC circuit switch 63 and a configuration example of the control unit 103. FIG. 55 is configured to output a DC circuit switch input command signal S06 instead of the AC circuit switch input command signal S04, as compared with FIG. 48 described above.

  ON / OFF of first charging switch 10A, ON / OFF of second charging switch 10B, and motor when starting operation of the railway vehicle drive control device of the twentieth embodiment of the present invention 56 and 57 show the timing with the elapsed time as the horizontal axis for the on / off of the circuit switch 25, the on / off of the DC circuit switch 63, the DC circuit voltage, and the operation / stop of the inverter 22.

  When the first charging switch 10A is turned on, the smoothing capacitor 14 on the DC circuit side of the inverter 22 is caused by the current limited by the charging circuit resistor 11 from the overhead wire 61 through the smoothing reactor 64 and the rectifying element 65A. Charged. As the charging time of the first charging switch 10A, a single shot time Tch5 is set in consideration of the value of the charging circuit resistor 11 and the capacitance of the smoothing capacitor 14 in advance. When the voltage Vdc of the DC circuit of the inverter 22 becomes equal to or higher than the peak value Vm of the induced voltage between the terminals of the permanent magnet motor 21 before the single shot time Tch5 elapses, the operation of FIG. 56 is performed. When the closing permission signal S03 is output, the motor circuit switch 25 is turned on, and after the single shot time Tch5 has elapsed, the first charging switch 10A is turned off and the DC circuit switch 63 is turned on. In this case, the second charging switch 10B is not turned on.

  When the single shot time Tch5 has elapsed after the first charging switch 10A is turned on, the DC circuit voltage Vdc of the inverter 22 is less than the peak value Vm of the induced voltage between the terminals of the permanent magnet motor 21, and the motor When the circuit switch closing permission signal S03 is not output, the operation of FIG. 57 is performed. By turning on the second charging switch 10B after the single shot time Tch5 has elapsed, the voltage of the auxiliary power supply circuit 29 is boosted by the charging circuit step-up transformer 16 and rectified by the charging rectifier circuit 17 When the DC circuit voltage Vdc of the inverter 22 is further charged and becomes equal to or higher than the peak value Vm of the induced voltage between the terminals of the permanent magnet motor 21, the motor circuit switch input permission signal S03 is output. When the motor circuit switch input permission signal S03 is output, the motor circuit switch 25 is turned on, the second charging switch 10B is turned off, and the DC circuit switch 63 is turned on.

  Here, when the value of the induced voltage Vm between the terminals of the permanent magnet motor 21 is large, the DC circuit voltage Vdc is greater than the voltage of the overhead line 61 as a power source by turning on the second charging switch 10B. May be charged to a large voltage. At this time, the rectifying element 65A prevents a current from flowing from the smoothing capacitor 14 side to the overhead wire 61 side during the charging period when the second charging switch 10B is turned on.

  After the inverter 22 starts operation, the inverter 22 outputs the voltage between the terminals of the permanent magnet motor 21 with respect to the voltage of the overhead wire 61 by controlling the flow of the current to reduce the voltage between the terminals of the permanent magnet motor 21. Drive control is performed by controlling the voltage to be less than the maximum possible voltage. This is so-called flux-weakening control of the so-called permanent magnet motor 21. As the method, for example, the method described in Japanese Patent No. 3226253 and various other methods have been proposed, and any of these methods can be used.

  When the permanent magnet motor 21 brakes the railway vehicle, when the permanent magnet motor 21 regenerates the power generated in the overhead wire 61 when the permanent magnet motor 21 generates a braking force, the permanent magnet motor 21 is connected in reverse parallel to the rectifying element 65A. The switching element 65B is turned on (conducting state) so that the current from the inverter 22 to the overhead wire 61 can flow. In FIG. 53, the rectifying element 65A is described as a diode symbol as an application example, but the type is not limited to a diode as long as the element can conduct current only to one side. The switching element 65B is described as an IGBT (insulated gate bipolar transistor) as an application example, but the type is not limited to the IGBT as long as the element has a function of conducting (on) and blocking (off) current. . In FIG. 53, the rectifying element 65A and the switching element 65B are separately shown. However, as in the example of the IGBT element built in the inverter 22, the rectifying element connected in antiparallel is built in and integrated. A switching element may be applied.

  In the railway vehicle drive control apparatus of the present embodiment, the rotation detector 26 is deleted, and instead, a motor terminal voltage detector 27 is provided at the terminal of the permanent magnet motor 21, and the motor terminal voltage detector 27 is shown in FIG. It can be configured in the same manner. In that case, in FIG. 54 and FIG. 55, the configuration of the control unit 103 inputs the output signal 127 of the motor terminal voltage detector 27 instead of the output signal 126 of the rotation detector, and the motor induced voltage calculation unit 105 The peak value of the induced voltage between the terminals of the permanent magnet motor 21 is calculated by performing the same calculation as that of the electric motor induced voltage calculation unit 105 in the railway vehicle drive control device according to the seventh embodiment of the present invention described in FIG. It is assumed that Vm is output.

  (21st Embodiment) A railroad vehicle drive control apparatus according to the 21st embodiment of the present invention will be described. FIG. 58 shows the configuration of a railway vehicle drive control apparatus according to a twenty-first embodiment of the present invention, in which 61 is an overhead wire that is a DC power source of the railway vehicle drive control apparatus, 62 is a DC circuit breaker, and 63 is DC circuit switch, 10 is a charging switch, 11 is a charging circuit resistor, 64 is a smoothing reactor, 66 is a chopper, 67A and 67B are switching elements built in the chopper 66, and other components are shown in FIG. 1 is the same as the railway vehicle drive control apparatus according to the first embodiment of the present invention shown in FIG.

  The chopper 66 incorporates switching elements 67A and 67B. By arbitrarily turning on and off these two switching elements, the DC voltage supplied from the DC power source (the overhead line 61) has an arbitrary magnitude. It has a function of boosting and converting to a direct current voltage. The DC voltage boosted by the chopper 66 is supplied as a power source for the inverter 22. In FIG. 58, the switching elements 67A and 67B included in the chopper 66 are described as IGBTs (insulated gate bipolar transistors) including diodes connected in antiparallel as an application example. The type is not limited to IGBT as long as the element has a function of blocking (off).

  The charging switch 10 and the charging circuit resistor 11 are for charging the smoothing capacitor 14 provided in the circuit on the DC side of the inverter 22 before starting the chopper 66.

  Before the chopper 66 is activated, the charging switch 10 is turned on, and smoothed by a current limited by the charging circuit resistor 11 via the antiparallel diode 64 and the switching element 67A. The capacitor 14 is charged. After the charging of the smoothing capacitor 14 is completed, the DC circuit switch 63 is turned on (on), the circuit between the overhead wire 61 and the inverter 22 is connected, and the charging switch 10 is opened (off). Regarding the timing of turning on the DC circuit switch 63, the charging is performed after the charging switch 10 is turned on in consideration of the charging time determined from the resistance value of the charging circuit resistor 11 and the capacitance of the smoothing capacitor 14. When the time has elapsed, the DC circuit switch 63 is turned on. Alternatively, as another method, the detection value of the voltage detector 15 may be monitored, and the DC circuit switch 63 may be turned on when the voltage of the smoothing capacitor 14 exceeds a preset threshold value.

  FIG. 59 is a diagram showing a configuration example of a control circuit of the railway vehicle drive control device according to the twenty-first embodiment of the present invention shown in FIG. In FIG. 59, in order to facilitate understanding of the operation of the embodiment of the present invention, signals relating to the description of the operation of the embodiment of the present invention are shown as signals input to the control unit 103 and output from the control unit 103. Only listed. Reference numeral 112 denotes a DC voltage command value to the chopper.

  FIG. 60 shows an example of the logic of the DC circuit switch input command signal S06 and the motor circuit switch input command signal S04 among the signals output from the control unit 103, and the motor induced voltage calculation unit 105 built in the control unit 103. 3 is a diagram illustrating a configuration example of a motor circuit switch input condition determination unit 106 and a DC voltage command value output unit 107. Compared with FIG. 2, a DC circuit switch input command signal S06 is output instead of the AC circuit switch input command signal S02.

  The switch input command S01 in FIG. 60 becomes, for example, a switch input command S01 = 1 when the protection function has not detected a failure and the charging time has elapsed after the charging switch 10 is turned on. Alternatively, as another method, the threshold value in which the voltage of the smoothing capacitor 14 is set in advance by monitoring the detection value of the voltage detector 15 after the charging switch 10 is turned on while the protection function has not detected a failure. When exceeding, it is good also as a system which makes switch injection | throwing-in instruction | command S01 = 1.

  The DC circuit switch input command signal S06 is output when the switch input command S01 becomes 1.

  The motor circuit switch input command S01 signal S04 is output by AND logic of the switch input command S01 and the motor circuit switch input permission signal S03 output from the motor circuit switch input condition determination unit 106. Alternatively, as another configuration example, as shown in FIG. 61, the RS-FF logic is calculated by AND logic of the switch input command S01 and the motor circuit switch input permission signal S03 output from the motor circuit switch input condition determination unit 106. When the protection function detects a failure and the failure detection signal S05 is input, the RS-FF logic may be reset and output.

  The chopper 66 boosts the DC power supply (overhead wire 61) voltage based on the DC voltage command value 112, converts it, and outputs it.

  The other components, the motor induced voltage calculation unit 105, the motor circuit switch input condition determination unit 106, the DC voltage command value output unit 107 and their operations are described in the railcar drive control according to the first embodiment of the present invention. It is the same as the device.

  The charging switch 10 is turned on / off, the DC circuit switch 63 is turned on / off, the DC circuit voltage, and the motor circuit switching when the operation of the railway vehicle drive control apparatus according to the twenty-first embodiment of the present invention is started. FIG. 62 and FIG. 63 show examples of timing diagrams with the elapsed time as the horizontal axis for the on / off of the device 25, the operation / stop of the chopper 66, and the operation / stop of the inverter 22.

  62 shows the peak of the induced voltage between the terminals of the permanent magnet motor 21 when the initial charging of the smoothing capacitor 14 is completed after the charging switch 10 is turned on and the DC circuit switch 63 is turned on. In this case, since the motor circuit switch input permission signal S03 = 1 when the DC circuit switch 63 is turned on, the motor circuit switch 25 is connected to the DC circuit switch 18. The chopper 66 and the inverter 22 start operating after the same timing.

  FIG. 63 shows an example in which the DC circuit voltage Vdc is less than the peak value Vm of the induced voltage between the terminals of the permanent magnet motor 21 when the DC circuit switch 63 is turned on. In this case, the DC circuit switch 63 Is turned on, the chopper 66 starts to operate and boosts and converts the voltage of the DC power supply (overhead wire 61) to increase the DC circuit voltage Vdc. When the DC circuit voltage Vdc becomes equal to or higher than the peak value Vm of the induced voltage of the permanent magnet motor 21, the motor circuit switch input permission signal S03 = 1 is set, and the motor circuit switch 25 is turned on. Thereafter, the inverter 22 starts operating.

  In the railway vehicle drive control apparatus of the present embodiment, the rotation detector 26 is deleted, and instead, a motor terminal voltage detector 27 is provided at the terminal of the permanent magnet motor 21, and the motor terminal voltage detector 27 is shown in FIG. It can be configured in the same manner. In this case, the configuration of the control unit 103 is that the output signal 127 of the motor terminal voltage detector 27 is input instead of the output signal 126 of the rotation detector in FIGS. 59 to 61, and the motor induced voltage calculation unit 105 is The peak value Vm of the induced voltage between the terminals of the permanent magnet motor 21 is calculated by performing the same calculation as that of the electric motor induced voltage calculation unit 105 in the railway vehicle drive control device according to the seventh embodiment of the present invention described in FIG. It is set as the structure to output.

  (Twenty-second Embodiment) A railcar drive control apparatus according to a twenty-second embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 64, the railway vehicle drive control apparatus according to the twenty-second embodiment of the present invention detects rotation relative to the railway vehicle drive control apparatus according to the twenty-first embodiment of the present invention shown in FIG. It is characterized by a configuration in which the container 26 is omitted.

  FIG. 65 is a diagram showing a configuration example of a control circuit of the railway vehicle drive control device of the present embodiment. 66 shows an example of the logic of the DC circuit switch input command signal S06 and the motor circuit switch input command signal S04 among the signals output by the control unit 103, and the voltage command value output unit 108 built in the control unit 103. It is the figure which showed the example of a structure of the motor circuit switch injection | throwing-in condition determination part 106 and the DC voltage command value output part 107. FIG. Alternatively, the logic of the motor circuit switch input command signal S04 may be configured as in the example of FIG.

  The voltage command value output unit 108 outputs an arbitrary value set in advance as the voltage command value Vc. Here, the preset arbitrary value may be a value equal to or higher than the peak value Vm of the induced voltage between the terminals due to the permanent magnet at the maximum number of rotations of the rotor of the permanent magnet motor 21 when the vehicle is running. This is a feature of the present embodiment. Other components and their operations will be described with reference to FIGS. 33 to 36 in the description of the control unit 103 of the railway vehicle drive control device according to the thirteenth embodiment of the present invention. This is the same as the case where the DC circuit switch input command signal S06 is replaced instead of the AC circuit switch input command signal S02.

  When starting operation of the railway vehicle drive control device of the present embodiment, the charging switch 10 is turned on / off, the AC circuit switch 63 is turned on / off, the DC circuit voltage, and the motor circuit switch 25 is turned on / off. FIG. 68 shows an example of a timing diagram with the elapsed time as the horizontal axis for turning off, operation / stop of the converter 12 and operation / stop of the inverter 22. After the AC circuit switch 63 is turned on, the converter 12 starts to operate, converts the AC voltage of the transformer secondary winding 5 and raises the DC circuit voltage to the DC voltage command value 112 or more. When the DC circuit voltage becomes equal to or higher than the voltage command value Vc, the motor circuit switch 25 is turned on. Thereafter, the inverter 22 starts operating.

  (23rd Embodiment) A railcar drive control apparatus according to the 23rd embodiment of the present invention will be described with reference to FIGS. The railway vehicle drive control device according to the twenty-third embodiment of the present invention inputs a switching condition signal 161 to the control unit 103 of the above-described rail vehicle drive control device according to the twenty-second embodiment of the present invention, and the voltage command The operation of the value output unit 108 is the same as that of the railway vehicle drive control device according to the fourteenth embodiment of the present invention described with reference to FIG. 37 to FIG. The function is to switch between the two.

  According to the railway vehicle drive control apparatus of the twentieth embodiment to the twenty-third embodiment of the present invention, the motor circuit switch 25 is turned on while the permanent magnet motor 21 generates an induced voltage during traveling. Even when the motor circuit switch 25 is turned on, the voltage of the circuit on the DC side of the inverter 22 is always greater than or equal to the peak value of the induced voltage between the terminals of the permanent magnet motor 21. It is possible to prevent the permanent magnet motor 21 from generating a torque shock due to a current flowing from the permanent magnet motor 21 to the smoothing capacitor 14 of the DC side circuit of the inverter 22 through the antiparallel diode of the element.

  In the railway vehicle drive control device according to the twentieth embodiment to the twenty-third embodiment of the present invention, the contact of the motor circuit switch 25 is a three-phase alternating current between the inverter 22 and the permanent magnet motor 21. Although the contact is provided in all the circuits, the motor circuit switch 25 is for preventing a current flowing through the three-phase circuit between the permanent magnet motor 21 and so out of the three phases. A contact may be provided in any two phases, and the contact of the motor circuit switch 25 is a current detector 24 of a three-phase AC circuit between the inverter 22 and the permanent magnet motor 21 and the permanent magnet motor 21. However, since this contact is for preventing the current between the permanent magnet motor 21 and the inverter 22, a contact is provided between the inverter 22 and the current detector 24. Also good.

  In the description of the railway vehicle drive control device according to the twentieth embodiment to the twenty-third embodiment of the present invention, the operation mechanism of the motor circuit switch 25 is normally open (when the drive operation coil is not pressurized, This is described in the case of a mechanism in which the contact is opened. When the operation mechanism of the motor circuit switch 25 is normally closed (a mechanism in which the contact is turned on when the driving operation coil is not pressurized), the motor circuit input command signal S04 output from the control unit 103 is inverted. When there is no signal, the motor circuit switch 25 is turned on, and when there is a signal, the motor circuit switch 25 is opened.

  In the railway vehicle drive control device according to the twentieth to twenty-third embodiments of the present invention, the contact of the motor circuit switch 25 is an example in which there is one contact for each phase. As shown in FIG. 23, two electric motor circuit switches 25 may be provided in the same manner as the railway vehicle drive control device shown in FIG. 23, so that the contacts are in series with each phase. .

  Furthermore, in the railway vehicle drive control apparatus according to the twentieth embodiment to the twenty-third embodiment of the present invention, the inverter 22 and the permanent magnet motor 21 are similar to the railway vehicle drive control apparatus shown in FIG. Even in the case where the current detector 24 and the motor circuit switch 25 are combined to form a unit drive group and have a plurality of drive groups, the effects of the present invention can be similarly obtained.

  In the railway vehicle drive control apparatus according to the first to twenty-third embodiments of the present invention, the converter 12 and the inverter 22, the first drive group inverter 2232, The internal circuit of the two-drive group inverter 2242 is shown as an example of a two-level circuit, but the converter 12 is configured with a neutral-point clamped three-level circuit, for example, as in the railway vehicle drive control device shown in FIG. Even in this case, the effect of the present invention can be obtained similarly. Further, the inverter 22 may be constituted by a neutral point clamp type three level circuit, or both the converter 12 and the inverter 22 may be constituted by a neutral point clamp type three level circuit.

  In other words, the converter 12 in the diagram shown as the embodiment of the present invention can be applied regardless of the configuration of its internal circuit as long as it is a converter 12 circuit that converts an AC voltage into a DC voltage having an arbitrary voltage. The effect of the present invention can be obtained similarly.

  Similarly, the inverter 22, the first drive group inverter 2232, and the second drive group inverter 2242 in the diagram shown as the embodiment of the present invention convert the DC voltage into a voltage having an arbitrary magnitude and an AC voltage having an arbitrary frequency. The inverter 22 circuit to be converted can be applied regardless of the configuration of its internal circuit, and the effects of the present invention can be similarly obtained.

1 is a circuit diagram of a railway vehicle drive control device according to a first embodiment of the present invention. The block diagram of the control circuit of the rail vehicle drive control apparatus of the 1st Embodiment of this invention. The block diagram of the control part of the rail vehicle drive control apparatus of the 1st Embodiment of this invention. The block diagram which shows the example of another logic of the control part of the rail vehicle drive control apparatus of the 1st Embodiment of this invention, and a structural example. FIG. 1 is a first timing chart of the operation of the railway vehicle drive control device according to the first embodiment of the present invention. FIG. 3 is a second timing chart of the operation of the railway vehicle drive control device according to the first embodiment of the present invention. The circuit diagram of the rail vehicle drive control apparatus of the 2nd Embodiment of this invention. The circuit diagram of the rail vehicle drive control apparatus of the 3rd Embodiment of this invention. The circuit diagram of the rail vehicle drive control apparatus of the 4th Embodiment of this invention. The circuit diagram of the rail vehicle drive control apparatus of the 5th Embodiment of this invention. The block diagram of the control circuit of the rail vehicle drive control apparatus of the 5th Embodiment of this invention. The block diagram of the control part of the rail vehicle drive control apparatus of the 5th Embodiment of this invention. The block diagram which shows the example of another logic of the control part of the rail vehicle drive control apparatus of the 5th Embodiment of this invention, and a structural example. The timing diagram 1 of the operation | movement of the rail vehicle drive control apparatus of the 5th Embodiment of this invention. The timing diagram 2 of the operation | movement of the rail vehicle drive control apparatus of the 5th Embodiment of this invention. The circuit diagram of the rail vehicle drive control apparatus of the 6th Embodiment of this invention. The block diagram of the control circuit of the rail vehicle drive control apparatus of the 6th Embodiment of this invention. The circuit diagram of the rail vehicle drive control apparatus of the 7th Embodiment of this invention. The block diagram of the control circuit of the rail vehicle drive control apparatus of the 7th Embodiment of this invention. The block diagram of the control part of the rail vehicle drive control apparatus of the 7th Embodiment of this invention. The block diagram which shows the example of another logic of the control part of the rail vehicle drive control apparatus of the 7th Embodiment of this invention, and a structural example. The wave form diagram of operation | movement of the electric motor induced voltage calculating part of the rail vehicle drive control apparatus of the 7th Embodiment of this invention. The circuit diagram of the rail vehicle drive control apparatus of the 8th Embodiment of this invention. The circuit diagram of the rail vehicle drive control apparatus of the 9th Embodiment of this invention. The circuit diagram of the rail vehicle drive control apparatus of the 10th Embodiment of this invention. The circuit diagram of the rail vehicle drive control apparatus of the 11th Embodiment of this invention. The block diagram of the control circuit of the rail vehicle drive control apparatus of the 11th Embodiment of this invention. The block diagram of the control part of the rail vehicle drive control apparatus of the 11th Embodiment of this invention. The block diagram which shows the example of another logic of the control part of the rail vehicle drive control apparatus of the 11th Embodiment of this invention, and a structural example. The circuit diagram of the rail vehicle drive control apparatus of the 12th Embodiment of this invention. The block diagram of the control circuit of the rail vehicle drive control apparatus of the 12th Embodiment of this invention. The circuit diagram of the rail vehicle drive control apparatus of the 13th Embodiment of this invention. The block diagram of the control circuit of the rail vehicle drive control apparatus of the 13th Embodiment of this invention. The block diagram of the control part of the rail vehicle drive control apparatus of the 13th Embodiment of this invention. The block diagram which shows the example of another logic of the control part of the rail vehicle drive control apparatus of the 13th Embodiment of this invention, and a structural example. The timing diagram of operation | movement of the rail vehicle drive control apparatus of the 13th Embodiment of this invention. The block diagram of the control circuit of the rail vehicle drive control apparatus of 14th Embodiment of this invention. The block diagram of the control part of the rail vehicle drive control apparatus of 14th Embodiment of this invention. The block diagram which shows the example of another logic of the control part of the rail vehicle drive control apparatus of 14th Embodiment of this invention, and a structural example. The block diagram of the control part of the rail vehicle drive control apparatus of 15th Embodiment of this invention. The block diagram which shows the example of a logic of the control part of the rail vehicle drive control apparatus of the 15th Embodiment of this invention, and a structural example. The timing diagram of operation | movement of the rail vehicle drive control apparatus of 15th Embodiment of this invention. The block diagram of the control part of the rail vehicle drive control apparatus of 16th Embodiment of this invention. The timing diagram 1 of operation | movement of the rail vehicle drive control apparatus of the 16th Embodiment of this invention. The timing diagram 2 of the operation | movement of the rail vehicle drive control apparatus of 16th Embodiment of this invention. The circuit diagram of the rail vehicle drive control apparatus of the 17th Embodiment of this invention. The block diagram of the control circuit of the rail vehicle drive control apparatus of the 17th Embodiment of this invention. The block diagram of the control part of the rail vehicle drive control apparatus of the 17th Embodiment of this invention. The timing diagram 1 of operation | movement of the rail vehicle drive control apparatus of the 17th Embodiment of this invention. The timing diagram 2 of the operation | movement of the rail vehicle drive control apparatus of the 17th Embodiment of this invention. The circuit diagram of the rail vehicle drive control apparatus of the 18th Embodiment of this invention. The circuit diagram of the rail vehicle drive control apparatus of the 19th Embodiment of this invention. The circuit diagram of the railway vehicle drive control apparatus of the 20th Embodiment of this invention. The block diagram of the control circuit of the rail vehicle drive control apparatus of the 20th Embodiment of this invention. The block diagram of the control part of the rail vehicle drive control apparatus of 20th Embodiment of this invention. The timing diagram 1 of operation | movement of the rail vehicle drive control apparatus of 20th Embodiment of this invention. The timing diagram 2 of the operation | movement of the rail vehicle drive control apparatus of 20th Embodiment of this invention. The circuit diagram of the rail vehicle drive control apparatus of the 21st Embodiment of this invention. The block diagram of the control circuit of the rail vehicle drive control apparatus of the 21st Embodiment of this invention. The block diagram of the control part of the rail vehicle drive control apparatus of 25th Embodiment of this invention. The block diagram which shows the example of another logic of the control part of the rail vehicle drive control apparatus of the 21st Embodiment of this invention, and a structural example. The timing diagram 1 of the operation | movement of the rail vehicle drive control apparatus of the 21st Embodiment of this invention. The timing diagram 2 of the operation | movement of the rail vehicle drive control apparatus of the 21st Embodiment of this invention. The circuit diagram of the rail vehicle drive control apparatus of the 22nd Embodiment of this invention. The block diagram of the control circuit of the rail vehicle drive control apparatus of the 22nd Embodiment of this invention. The block diagram of the control part of the rail vehicle drive control apparatus of 22nd Embodiment of this invention. The block diagram which shows the example of another logic of the rail vehicle drive control apparatus of the 22nd Embodiment of this invention, and a structural example. The timing diagram of operation | movement of the rail vehicle drive control apparatus of the 22nd Embodiment of this invention. The block diagram of the control circuit in the rail vehicle drive control apparatus of the 23rd Embodiment of this invention. The block diagram of the control part of the rail vehicle drive control apparatus of the 23rd Embodiment of this invention. The block diagram which shows the example of another logic, and the example of a structure of the rail vehicle drive control apparatus of the 23rd Embodiment of this invention. The circuit diagram of the rail vehicle drive control apparatus of 24th Embodiment of this invention. The circuit diagram of the conventional railway vehicle drive control apparatus. The block diagram of the control circuit of the conventional railway vehicle drive control apparatus. Explanatory drawing which shows the flow of the transient current when the motor circuit switch is thrown in the circuit of the conventional railway vehicle drive control apparatus. The timing diagram which shows generation | occurrence | production of the transient current in the conventional railway vehicle drive control apparatus.

Explanation of symbols

1 AC power supply (overhead wire)
2 Current collector 3 AC circuit breaker 4 Transformer primary winding 5 Transformer secondary winding 5A 1st transformer secondary winding 5B 2nd transformer secondary winding 6 Transformer tertiary winding 7 Wheel 8 Rail 9 AC current detector 10 Charging switch 10A First charging switch 10B Second charging switch 11 Charging circuit resistor 12 Converter 12
13U to 13Y Converter 12 Switching element 14 Smoothing capacitor 15 Voltage detector 16 Charge circuit step-up transformer 17 Charging rectifier circuit 18 AC circuit switch 21 Permanent magnet motor 21
22 Inverter 22
23U-23Z Inverter 22 Switching element 24U-24W Current detector 25 Motor circuit switch 25A First motor circuit switch 25B Second motor circuit switch 26 Rotation detector 27 Motor terminal voltage detector 28 Auxiliary power supply device 29 Auxiliary Power circuit 31 Permanent magnet motor 21 of the first drive group
32 Inverter 22 in the first drive group
34U-34W Current detector of the first drive group 35 Motor circuit switch of the first drive group 36 Rotation detector of the first drive group 37 Motor terminal voltage detector of the first drive group 41 Permanent magnet motor of the second drive group 21
42 Inverter 22 in second drive group
44U to 44W Second drive group current detector 45 Second drive group motor circuit switch 46 Second drive group rotation detector 47 Second drive group motor terminal voltage detector 51 First control group 52 Second control Group 61 DC power supply (overhead wire)
62 DC circuit breaker 63 DC circuit switch 64 Smoothing reactor 65A Rectifying element 65B Switching element 66 Chopper 67A, 67B Chopper switching element 101 Control circuit power supply 102 Control circuit power supply ground 103 Control unit 104a to 104h Relay 105 Electric motor induced voltage calculation unit 106 Motor circuit switch input condition determination unit 107 DC voltage command value output unit 108 Voltage command value output unit 109 Output signal of AC current detector 110 Charging switch driving operation coil 110A First charging switch driving operation coil 110B No. 2 charging switch driving operation coil 112 DC voltage command value 115 voltage detector output signal 118 AC circuit switch driving operation coil 124U to 124W current detector output signal 125 motor circuit switch driving operation coil 126 Output signal of rotation detector 127 Output signal of motor terminal voltage detector 134U to 134W Output signal of current detector of first drive group 135 Motor circuit switch drive operation coil of first drive group 136 Rotation detection of first drive group Output signal of motor 137 Output signal of motor terminal voltage detector of first drive group 144U to 144W Output signal of current detector of second drive group 145 Motor circuit switch drive operation coil of second drive group 146 Second drive group Output signal of the rotation detector 147 Output signal of the motor terminal voltage detector of the second drive group 161 Switching condition signal 162 Operation start command

Claims (18)

A permanent magnet motor for driving the vehicle;
An inverter that converts a DC voltage into an AC voltage of an arbitrary voltage and an arbitrary frequency to supply AC power to the permanent magnet motor;
A DC voltage detector that detects and outputs a voltage of a circuit on the DC side of the inverter;
A contact is provided for opening / closing the circuit in at least the n-1 phase of the n-phase AC circuit (n is an arbitrary number representing the number of AC phases) between the inverter and the permanent magnet motor. An electric circuit switch;
A controller for outputting a motor circuit switch input command signal for opening and opening the motor circuit switch;
When the control unit turns on the motor circuit switch to start operation of the railway vehicle drive control device, the voltage of the circuit on the DC side of the inverter is the peak of the induced voltage between the terminals of the permanent magnet motor A railway vehicle drive control device that controls to turn on the motor circuit switch on condition that the value is equal to or greater than a value. A permanent magnet motor for driving the vehicle;
A rotation detector that detects and outputs rotation of a rotor of the permanent magnet motor;
A transformer whose primary winding is connected to an AC power source;
A converter that converts the alternating voltage of the secondary winding of the transformer into a direct current voltage of an arbitrary magnitude and outputs it;
An inverter that converts the DC voltage that is the output of the converter into an AC voltage of an arbitrary voltage and an arbitrary frequency and supplies AC power to the permanent magnet motor;
A DC voltage detector that detects and outputs a voltage of a DC circuit between the converter and the inverter;
A contact is provided for opening / closing the circuit in at least the n-1 phase of the n-phase AC circuit (n is an arbitrary number representing the number of AC phases) between the inverter and the permanent magnet motor. An electric circuit switch;
A controller for outputting a motor circuit switch input command signal for opening and opening the motor circuit switch;
The controller is
A motor induced voltage calculation means, a motor circuit switch input condition determination means, a DC voltage command value output means,
The electric motor induced voltage calculation means inputs the output of the rotation detector, calculates the peak value of the induced voltage between the terminals of the permanent magnet electric motor, and outputs it,
The motor circuit switch input condition determining means inputs the output of the motor induced voltage calculation means and the output of the DC voltage detector, and outputs a motor circuit switch input permission signal,
The DC voltage command value output means inputs the output of the electric motor induced voltage calculation means, and the DC voltage command value is the induced voltage between the terminals of the permanent magnet motor as the DC voltage command value converted by the converter. Output a command value that is greater than or equal to the peak value of
When turning on the motor circuit switch to start operation of the railway vehicle drive control device, if the motor circuit switch turn-on permission signal is not output, the converter is operated to increase the voltage of the DC circuit. A railway vehicle drive control device, wherein the electric motor circuit switch is controlled after being raised to a peak value or more of an induced voltage between terminals of the permanent magnet motor. A permanent magnet motor for driving the vehicle;
A motor terminal voltage detector that detects and outputs a terminal voltage of the permanent magnet motor;
A transformer whose primary winding is connected to an AC power source;
A converter that converts the alternating voltage of the secondary winding of the transformer into a direct current voltage of an arbitrary magnitude and outputs it;
An inverter that converts the DC voltage that is the output of the converter into an AC voltage of an arbitrary voltage and an arbitrary frequency and supplies AC power to the permanent magnet motor;
A DC voltage detector that detects and outputs a voltage of a DC circuit between the converter and the inverter;
A contact is provided for opening / closing the circuit in at least the n-1 phase of the n-phase AC circuit (n is an arbitrary number representing the number of AC phases) between the inverter and the permanent magnet motor. An electric circuit switch;
A controller for outputting a motor circuit switch input command signal for opening and opening the motor circuit switch;
The controller is
A motor induced voltage calculation means, a motor circuit switch input condition determination means, a DC voltage command value output means,
The motor induced voltage calculation means inputs the output of the motor terminal voltage detector, calculates and outputs the peak value of the induced voltage between the terminals of the permanent magnet motor,
The motor circuit switch input condition determining means inputs the output of the motor induced voltage calculation means and the output of the DC voltage detector, and outputs a motor circuit switch input permission signal,
The DC voltage command value output means inputs the output of the electric motor induced voltage calculation means, and the DC voltage command value is the induced voltage between the terminals of the permanent magnet motor as the DC voltage command value converted by the converter. Output a command value that is greater than or equal to the peak value of
When turning on the motor circuit switch to start operation of the railway vehicle drive control device, if the motor circuit switch turn-on permission signal is not output, the converter is operated to increase the voltage of the DC circuit. A railway vehicle drive control device, wherein the electric motor circuit switch is controlled after being raised to a peak value or more of an induced voltage between terminals of the permanent magnet motor. A permanent magnet motor for driving the vehicle;
A transformer whose primary winding is connected to an AC power source;
A converter that converts the alternating voltage of the secondary winding of the transformer into a direct current voltage of an arbitrary magnitude and outputs it;
An inverter that converts the DC voltage that is the output of the converter into an AC voltage of an arbitrary voltage and an arbitrary frequency and supplies AC power to the permanent magnet motor;
A DC voltage detector that detects and outputs a voltage of a DC circuit between the converter and the inverter;
A contact is provided for opening / closing the circuit in at least the n-1 phase of the n-phase AC circuit (n is an arbitrary number representing the number of AC phases) between the inverter and the permanent magnet motor. An electric circuit switch;
A controller for outputting a motor circuit switch input command signal for opening and opening the motor circuit switch;
The controller is
Voltage command value output means, motor circuit switch input condition determination means, DC voltage command value output means,
The voltage command value output means outputs, as a voltage command value, a value equal to or higher than the peak value of the induced voltage between the terminals at the maximum number of rotations of the permanent magnet electric motor as a preset value,
The DC voltage command value output means receives the voltage command value, and outputs a DC voltage command value converted by the converter,
The motor circuit switch input condition determining means inputs the voltage command value and the output of the DC voltage detector, and outputs a motor circuit switch input permission signal,
When the motor circuit switch is turned on to start operation of the railway vehicle drive control device, the converter is operated so that the voltage of the DC circuit is changed between the terminals at the maximum number of rotations of the permanent magnet motor in the running of the vehicle. A railway vehicle drive control device, wherein the motor circuit switch is controlled after being increased to a peak value or more of the induced voltage. A permanent magnet motor for driving the vehicle;
A rotation detector that detects and outputs rotation of a rotor of the permanent magnet motor;
A transformer whose primary winding is connected to an AC power source;
A converter that converts the alternating voltage of the secondary winding of the transformer into a direct current voltage of an arbitrary magnitude and outputs it;
An inverter that converts the DC voltage that is the output of the converter into an AC voltage of an arbitrary voltage and an arbitrary frequency and supplies AC power to the permanent magnet motor;
A DC voltage detector that detects and outputs a voltage of a DC circuit between the converter and the inverter;
A tertiary winding provided in the transformer and outputting a voltage smaller than the secondary winding;
A charging circuit step-up transformer connected to the tertiary winding via a charging switch to boost the voltage of the tertiary winding;
A charging rectifier circuit that rectifies the voltage on the boost side of the charging circuit step-up transformer and outputs the rectified voltage to a DC circuit between the converter and the inverter;
A contact is provided for opening / closing the circuit in at least the n-1 phase of the n-phase AC circuit (n is an arbitrary number representing the number of AC phases) between the inverter and the permanent magnet motor. An electric circuit switch;
A controller for outputting a motor circuit switch input command signal for turning on and opening the motor circuit switch and a charge switch input command signal for opening and opening the charge switch;
The controller is
Electric motor induced voltage calculation means, and motor circuit switch input condition determination means,
The electric motor induced voltage calculation means inputs the output of the rotation detector, calculates the peak value of the induced voltage between the terminals of the permanent magnet electric motor, and outputs it,
The motor circuit switch input condition determining means inputs the output of the motor induced voltage calculation means and the output of the DC voltage detector, and outputs a motor circuit switch input permission signal,
When starting operation of the railway vehicle drive control device, the charging switch is turned on to charge a DC circuit between the converter and the inverter, and the motor circuit switch turning permission signal is output A railway vehicle drive control device that controls to turn on the motor circuit switch on the condition of A permanent magnet motor for driving the vehicle;
A motor terminal voltage detector that detects and outputs a terminal voltage of the permanent magnet motor;
A transformer whose primary winding is connected to an AC power source;
A converter that converts the alternating voltage of the secondary winding of the transformer into a direct current voltage of an arbitrary magnitude and outputs it;
An inverter that converts the DC voltage that is the output of the converter into an AC voltage of an arbitrary voltage and an arbitrary frequency and supplies AC power to the permanent magnet motor;
A DC voltage detector that detects and outputs a voltage of a DC circuit between the converter and the inverter;
A tertiary winding provided in the transformer and outputting a voltage smaller than the secondary winding;
A charging circuit step-up transformer connected to the tertiary winding via a charging switch and boosting the voltage of the tertiary winding;
A charging rectifier circuit that rectifies the voltage on the boost side of the charging circuit step-up transformer and outputs the rectified voltage to a DC circuit between the converter and the inverter;
A contact is provided for opening / closing the circuit in at least the n-1 phase of the n-phase AC circuit (n is an arbitrary number representing the number of AC phases) between the inverter and the permanent magnet motor. An electric circuit switch;
A controller for outputting a motor circuit switch input command signal for turning on and opening the motor circuit switch and a charge switch input command signal for opening and opening the charge switch;
The controller is
Electric motor induced voltage calculation means, and motor circuit switch input condition determination means,
The motor induced voltage calculation means inputs the output of the motor terminal voltage detector, calculates and outputs the peak value of the induced voltage between the terminals of the permanent magnet motor,
The motor circuit switch input condition determining means inputs the output of the motor induced voltage calculation means and the output of the voltage detector, and outputs a motor circuit switch input permission signal,
When starting operation of the railway vehicle drive control device, the charging switch is turned on to charge a DC circuit between the converter and the inverter, and the motor circuit switch turning permission signal is output A railway vehicle drive control device that controls to turn on the motor circuit switch on the condition of   When the operation of the railway vehicle drive control device is started, the control unit charges a DC circuit between the converter and the inverter by charging a switch for charging for a preset period, and the preset period has elapsed. If the motor circuit switch turn-on permission signal is not output later, the charging switch turn-on period is extended, and the voltage of the DC circuit rises above the peak value of the induced voltage between the terminals of the permanent magnet motor The railway vehicle drive control device according to claim 5 or 6, wherein control for turning on the electric motor circuit switch is performed after the operation. A permanent magnet motor for driving the vehicle;
A rotation detector that detects and outputs rotation of a rotor of the permanent magnet motor;
A main circuit transformer whose primary winding is connected to an AC power source;
A converter that converts the alternating voltage of the secondary winding of the main circuit transformer into a direct current voltage of an arbitrary magnitude and outputs it;
An inverter that converts the DC voltage that is the output of the converter into an AC voltage of an arbitrary voltage and an arbitrary frequency and supplies AC power to the permanent magnet motor;
A main circuit DC voltage detector for detecting and outputting a voltage of a DC circuit between the converter and the inverter;
A tertiary winding that is provided in the main circuit transformer and outputs a voltage smaller than the secondary winding;
A step-up transformer having windings with different step-up ratios in the low-voltage side winding, and terminals of the windings with different step-up ratios are respectively a first charging switch and a second charging switch. A charging circuit step-up transformer connected to the tertiary winding of the main circuit transformer via a switch for voltage boosting the voltage of the tertiary winding;
A charging rectifier circuit that rectifies the voltage on the boost side of the charging circuit step-up transformer and outputs the rectified voltage to a DC circuit between the converter and the inverter;
A contact is provided for opening / closing the circuit in at least the n-1 phase of the n-phase AC circuit (n is an arbitrary number representing the number of AC phases) between the inverter and the permanent magnet motor. An electric circuit switch;
A motor circuit switch input command signal for opening / closing the motor circuit switch; a first charging switch input command signal for opening / opening the first charging switch; A control unit for outputting a second charging switch input command signal for switching on and opening the charging switch of No. 2;
The controller is
Electric motor induced voltage calculation means, and motor circuit switch input condition determination means,
The electric motor induced voltage calculation means inputs the output of the rotation detector, calculates the peak value of the induced voltage between the terminals of the permanent magnet electric motor, and outputs it,
The motor circuit switch input condition determining means inputs the output of the motor induced voltage calculation means and the output of the DC voltage detector, and outputs a motor circuit switch input permission signal,
When starting operation of the railway vehicle drive control device, the first charging switch is turned on to charge the DC circuit between the converter and the inverter, and then the second charging switch is turned on. Then, after the voltage of the DC circuit is increased to a peak value or more of the induced voltage between the terminals of the permanent magnet motor, the electric vehicle circuit switch is controlled to be turned on. A permanent magnet motor for driving the vehicle;
A motor terminal voltage detector that detects and outputs a terminal voltage of the permanent magnet motor;
A main circuit transformer whose primary winding is connected to an AC power source;
A converter that converts the alternating voltage of the secondary winding of the main circuit transformer into a direct current voltage of an arbitrary magnitude and outputs it;
An inverter that converts the DC voltage that is the output of the converter into an AC voltage of an arbitrary voltage and an arbitrary frequency and supplies AC power to the permanent magnet motor;
A DC voltage detector that detects and outputs a voltage of a DC circuit between the converter and the inverter;
A tertiary winding provided in the transformer and outputting a voltage smaller than the secondary winding;
A step-up transformer having windings with different step-up ratios in the low-voltage side winding, and terminals of the windings with different step-up ratios are respectively a first charging switch and a second charging switch. A charging circuit step-up transformer connected to the tertiary winding of the main circuit transformer via a switch for voltage boosting the voltage of the tertiary winding;
A charging rectifier circuit that rectifies the voltage on the boost side of the charging circuit step-up transformer and outputs the rectified voltage to a DC circuit between the converter and the inverter;
A contact is provided for opening / closing the circuit in at least the n-1 phase of the n-phase AC circuit (n is an arbitrary number representing the number of AC phases) between the inverter and the permanent magnet motor. An electric circuit switch;
A motor circuit switch input command signal for opening / closing the motor circuit switch; a first charging switch input command signal for opening / opening the first charging switch; A control unit for outputting a second charging switch input command signal for switching on and opening the charging switch of No. 2;
The controller is
Electric motor induced voltage calculation means, and motor circuit switch input condition determination means,
The motor induced voltage calculation means inputs the output of the motor terminal voltage detector, calculates and outputs the peak value of the induced voltage between the terminals of the permanent magnet motor,
The motor circuit switch input condition determining means inputs the output of the motor induced voltage calculation means and the output of the DC voltage detector, and outputs a motor circuit switch input permission signal,
When starting operation of the railway vehicle drive control device, the first charging switch is turned on to charge the DC circuit between the converter and the inverter, and then the second charging switch is turned on. Then, after the voltage of the DC circuit is increased to a peak value or more of the induced voltage between the terminals of the permanent magnet motor, the electric vehicle circuit switch is controlled to be turned on. A permanent magnet motor for driving the vehicle;
A rotation detector that detects and outputs rotation of a rotor of the permanent magnet motor;
An inverter that converts a DC voltage into an AC voltage of an arbitrary voltage and an arbitrary frequency to supply AC power to the permanent magnet motor;
A DC voltage detector that detects and outputs a voltage of a circuit on the DC side of the inverter;
A first charging switch for initially charging a circuit on the DC side of the inverter via a charging circuit resistor;
A charging circuit step-up transformer that is connected to an auxiliary circuit to which AC power is supplied from an auxiliary power supply device of the vehicle via a second charging switch, and boosts the voltage of the auxiliary circuit;
A charging rectifier circuit that rectifies the voltage on the boost side of the charging circuit step-up transformer and outputs the rectified voltage to the DC side circuit of the inverter;
A contact is provided for opening / closing the circuit in at least the n-1 phase of the n-phase AC circuit (n is an arbitrary number representing the number of AC phases) between the inverter and the permanent magnet motor. An electric circuit switch;
A motor circuit switch input command signal for opening / closing the motor circuit switch; a first charging switch input command signal for opening / opening the first charging switch; A control unit for outputting a second charging switch input command signal for switching on and opening the charging switch of No. 2;
The controller is
Electric motor induced voltage calculation means, and motor circuit switch input condition determination means,
The electric motor induced voltage calculation means inputs the output of the rotation detector, calculates the peak value of the induced voltage between the terminals of the permanent magnet electric motor, and outputs it,
The motor circuit switch input condition determining means inputs the output of the motor induced voltage calculation means and the output of the voltage detector, and outputs a motor circuit switch input permission signal,
When starting operation of the railway vehicle drive control device, the first charging switch is turned on to charge the circuit on the DC side of the inverter, and then the second charging switch is turned on, A railway vehicle drive control device, wherein the control of turning on the motor circuit switch is performed after raising the voltage of a DC circuit to a peak value or more of an induced voltage between terminals of a permanent magnet motor. A permanent magnet motor for driving the vehicle;
A motor terminal voltage detector that detects and outputs a terminal voltage of the permanent magnet motor;
An inverter that converts a DC voltage into an AC voltage of an arbitrary voltage and an arbitrary frequency to supply AC power to the permanent magnet motor;
A DC voltage detector that detects and outputs a voltage of a circuit on the DC side of the inverter;
A first charging switch for initially charging a circuit on the DC side of the inverter via a charging circuit resistor;
A charging circuit step-up transformer for boosting the voltage of the auxiliary circuit connected to the auxiliary circuit supplied with AC power from the auxiliary power supply device of the vehicle via a second charging switch;
A charging rectifier circuit that rectifies the voltage on the boost side of the charging circuit step-up transformer and outputs the rectified voltage to the DC side circuit of the inverter;
A contact is provided for opening / closing the circuit in at least the n-1 phase of the n-phase AC circuit (n is an arbitrary number representing the number of AC phases) between the inverter and the permanent magnet motor. An electric circuit switch;
A motor circuit switch input command signal for opening / closing the motor circuit switch; a first charging switch input command signal for opening / opening the first charging switch; A control unit for outputting a second charging switch input command signal for switching on and opening the charging switch of No. 2;
The controller is
Electric motor induced voltage calculation means, and motor circuit switch input condition determination means,
The motor induced voltage calculation means inputs the output of the motor terminal voltage detector, calculates and outputs the peak value of the induced voltage between the terminals of the permanent magnet motor,
The motor circuit switch input condition determining means inputs the output of the motor induced voltage calculation means and the output of the DC voltage detector, and outputs a motor circuit switch input permission signal,
When starting operation of the railway vehicle drive control device, the first charging switch is turned on to charge the circuit on the DC side of the inverter, and then the second charging switch is turned on, A railway vehicle drive control device, wherein the control of turning on the motor circuit switch is performed after raising the voltage of a DC circuit to a peak value or more of an induced voltage between terminals of a permanent magnet motor.   A rectifying element that prevents current from the inverter side and the charging rectifier circuit side to the DC power source side of the railway vehicle drive control device, and a switching element connected in reverse parallel to the rectifying element, on the DC side circuit of the inverter The railway vehicle drive control device according to claim 10 or 11, comprising: A permanent magnet motor for driving the vehicle;
A rotation detector that detects and outputs rotation of a rotor of the permanent magnet motor;
A chopper that boosts and outputs the voltage of the DC power supply to a DC voltage of any magnitude;
An inverter that converts a DC voltage output from the chopper into an AC voltage of an arbitrary voltage and an arbitrary frequency and supplies AC power to the permanent magnet motor;
A DC voltage detector that detects and outputs a voltage of a circuit on the DC side of the inverter;
A contact is provided for opening / closing the circuit in at least the n-1 phase of the n-phase AC circuit (n is an arbitrary number representing the number of AC phases) between the inverter and the permanent magnet motor. An electric circuit switch;
A controller for outputting a motor circuit switch input command signal for opening and opening the motor circuit switch;
The controller is
A motor induced voltage calculation means, a motor circuit switch input condition determination means, a DC voltage command value output means,
The electric motor induced voltage calculation means inputs the output of the rotation detector, calculates the peak value of the induced voltage between the terminals of the permanent magnet electric motor, and outputs it,
The motor circuit switch input condition determining means inputs the output of the motor induced voltage calculation means and the output of the DC voltage detector, and outputs a motor circuit switch input permission signal,
The DC voltage command value output means inputs the output of the electric motor induced voltage calculation means, and the DC voltage command value is the induced voltage between the terminals of the permanent magnet motor as the DC voltage command value boosted by the chopper. Output a value greater than or equal to the peak value of
When turning on the motor circuit switch to start operation of the railway vehicle drive control device, if the motor circuit switch turn-on permission signal is not output, the chopper is operated to turn on the DC side of the inverter. A railway vehicle drive control device characterized by performing control to turn on the motor circuit switch after raising the voltage of the circuit to a peak value or more of the induced voltage between the terminals of the permanent magnet motor. A permanent magnet motor for driving the vehicle;
A motor terminal voltage detector that detects and outputs a terminal voltage of the permanent magnet motor;
A chopper that boosts and outputs the voltage of the DC power supply to a DC voltage of any magnitude;
An inverter that converts a DC voltage output from the chopper into an AC voltage of an arbitrary voltage and an arbitrary frequency and supplies AC power to the permanent magnet motor;
A DC voltage detector that detects and outputs a voltage of a circuit on the DC side of the inverter;
A contact is provided for opening / closing the circuit in at least the n-1 phase of the n-phase AC circuit (n is an arbitrary number representing the number of AC phases) between the inverter and the permanent magnet motor. An electric circuit switch;
A controller for outputting a motor circuit switch input command signal for opening and opening the motor circuit switch;
The controller is
A motor induced voltage calculation means, a motor circuit switch input condition determination means, a DC voltage command value output means,
The motor induced voltage calculation means inputs the output of the motor terminal voltage detector, calculates and outputs the peak value of the induced voltage between the terminals of the permanent magnet motor,
The motor circuit switch input condition determining means inputs the output of the motor induced voltage calculation means and the output of the DC voltage detector, and outputs a motor circuit switch input permission signal,
The DC voltage command value output means inputs the output of the electric motor induced voltage calculation means, and the DC voltage command value is the induced voltage between the terminals of the permanent magnet motor as the DC voltage command value boosted by the chopper. Output a value greater than or equal to the peak value of
When turning on the motor circuit switch to start operation of the railway vehicle drive control device, if the motor circuit switch turn-on permission signal is not output, the chopper is operated to turn on the DC side of the inverter. A railway vehicle drive control device characterized by performing control to turn on the motor circuit switch after raising the voltage of the circuit to a peak value or more of the induced voltage between the terminals of the permanent magnet motor. A permanent magnet motor for driving the vehicle;
A chopper that boosts and outputs the voltage of the DC power supply to a DC voltage of any magnitude;
An inverter that converts a DC voltage output from the chopper into an AC voltage of an arbitrary voltage and an arbitrary frequency and supplies AC power to the permanent magnet motor;
A DC voltage detector that detects and outputs a voltage of a circuit on the DC side of the inverter;
A contact is provided for opening / closing the circuit in at least the n-1 phase of the n-phase AC circuit (n is an arbitrary number representing the number of AC phases) between the inverter and the permanent magnet motor. An electric circuit switch;
A controller for outputting a motor circuit switch input command signal for opening and opening the motor circuit switch;
The controller is
Voltage command value output means, motor circuit switch input condition determination means, DC voltage command value output means,
The voltage command value output means outputs, as a voltage command value, a value equal to or more than a peak value of an induced voltage between terminals at a preset maximum rotation speed of the permanent magnet motor in vehicle travel,
The motor circuit switch input condition determining means inputs the voltage command value and the output of the DC voltage detector, and outputs a motor circuit switch input permission signal,
The DC voltage command value output means inputs the voltage command value, outputs a command value of a DC voltage boosted by the chopper,
When the motor circuit switch is turned on to start operation of the railway vehicle drive control device, the chopper is operated so that the voltage of the circuit on the DC side of the inverter is the maximum number of rotations of the permanent magnet motor in running the vehicle. A railway vehicle drive control device that controls to turn on the motor circuit switch after the voltage is raised to a peak value or more of the induced voltage between terminals in the vehicle.   The railcar drive control device according to claim 14 or 15, wherein the voltage command value output means has a plurality of preset values, and selects from the plurality of values to output as a voltage command value. .   15. The voltage command value output means has a plurality of preset values, and selects a route on which the vehicle travels from the plurality of values as a condition and outputs the selected voltage command value as a voltage command value. 15. The railway vehicle drive control device according to 15. 15. The voltage command value output means includes a plurality of preset values, and selects a maximum speed at which the vehicle travels from the plurality of values as a condition and outputs the selected voltage command value as a voltage command value. Or the railcar drive control apparatus of 15.

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