JP2006143388A - Blackout operation device for elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent stop of a running elevator between floors due to capacity shortage of a storage battery at the time of blackout operation and to inform users of floors to which the elevator can run and those to which the elevator cannot run when the users get on a car, in a blackout operation device for the elevator. <P>SOLUTION: Based on storage battery capacity A at start of blackout operation, a storage battery current integrated value B, storage battery residual capacity C and predicted storage battery current D at the time of n time operation, dischargeable time T1 of the storage battery is calculated (Steps S<SB>1</SB>to S<SB>6</SB>). Based on the current position of the elevator, distances to respective service floors and blackout operation speed, blackout operation running time T2 is calculated (Step S<SB>7</SB>). Based on times T1, T2, the floors to which the elevator can run is determined (Step S<SB>8</SB>). The floors to which the elevator can run and those to which the elevator cannot run are informed and it is informed that in some cases, service cannot be performed to the floors to which the elevator cannot run due to shortage of residual amount of the storage battery (Steps S<SB>9</SB>to S<SB>14</SB>). <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a power failure operation device for an elevator that causes an elevator to travel to a destination floor without emergency stop by storage battery power at the time of a power failure of an AC power source, and then continues the operation a plurality of times.

  Conventionally, as a power failure operation device for an elevator, for example, a device using a continuous operation type battery device has been adopted. This device normally operates the elevator with the power of the AC power supply and charges the storage battery, and at the time of a power failure of the AC power supply, the storage battery power causes the elevator to travel to the target floor without emergency stop, and then operates multiple times. Configured to continue.

  Patent Document 1 below discloses that the stored power amount of the storage battery is controlled to be larger than the power amount that the car can travel during a power failure.

Also, in Patent Document 2 below, when a power failure is detected, whether or not the vehicle can be driven is determined based on a comparison between the required amount of power up to the destination floor and the amount of power that can be left in the power storage device. Canceling a call is disclosed.
JP 2002-154759 A JP 2004-43078 A

  In the conventional elevator power failure operation device, when the remaining capacity of the storage battery is small, the destination floor cannot be reached, and there is a problem that the traveling stops between the floors and recovers to the nearest floor in the light load direction. .

  In addition, the apparatus described in Patent Document 1 requires a storage amount control means and has a problem that the calculation is complicated because the capacity of the storage battery is calculated by the amount of power [Wh].

  That is, the voltage between the terminals at the time of discharging the battery changes in a quadratic curve (the relationship between the discharge time and the voltage between the terminals does not become a linear curve), so the storage capacity of the storage battery is expressed in unit of time [Wh]. Complicated calculation such as accumulating power per unit is necessary.

  In addition, the device described in Patent Document 2 has a problem that anxiety is given to the user because call registration to a floor that cannot travel during a power failure is canceled or registration acceptance is prohibited.

  The present invention has been made in view of the above points. The purpose of the present invention is to prevent a stop between floors due to insufficient storage battery capacity during traveling of an elevator by a simple device configuration during a power failure operation, and a user. When the car is in the car, the floors that can travel and the floors that cannot travel are reported, and when the target floor cannot be traveled due to insufficient storage battery capacity, the service to the floor that can travel may be terminated in advance. An object of the present invention is to provide a power failure operation device for an elevator that can be used.

  The elevator power failure operation device of the present invention for solving the above-mentioned problem is a power failure operation of an elevator that causes the elevator to travel to a target floor without emergency stop by storage battery power at the time of AC power failure and then continues the operation multiple times. In the apparatus, the storage battery current during n (n is a positive number) travel is predicted based on the traveling direction of the elevator and the load in the car, and the dischargeable time of the storage battery is calculated from the remaining storage battery capacity and the predicted storage battery current. The calculation means for calculating the power outage driving time based on the current position, the distance to each service floor and the power outage operation speed, and determining the travelable floor based on the dischargeable time and power outage driving time of the storage battery, An informing means for informing the possible floor and the inoperable floor is provided.

  Further, the storage battery remaining capacity is calculated from a storage battery capacity at the start of a power failure operation and a storage battery current integrated value when the power failure operation is performed n-1 times.

  In addition, when the call registration to the inoperable floor that has been informed is made, the informing means informs that the power outage operation may be terminated by traveling to a travelable floor before the registered floor. It is characterized by.

  In addition, after the call registration to the informed travelable floor is made and the travel to the registration floor becomes impossible due to increase / decrease in the load in the car, the informing means is able to travel to the travelable floor before the registration floor. It is characterized by notifying that there is a case where the power failure operation may be terminated by the traveling up to.

(1) According to the inventions described in claims 1 to 4, it is possible to prevent a stop between floors due to a shortage of storage battery capacity during elevator traveling during a power failure operation. In addition, as soon as the user gets in the car, the floor that can be driven and the floor that cannot be driven by the remaining capacity of the storage battery are known.
(2) Further, according to the invention described in claim 2, since the calculation of the remaining battery capacity is obtained from the storage battery current value, a complicated calculation such as integrating power per unit time as in the prior art becomes unnecessary. The calculation means can be simplified.
(3) Further, according to the inventions of claims 3 and 4, if the destination floor cannot be driven due to insufficient storage battery capacity, the service to the floor where the vehicle can travel may be terminated in advance. it can.
(4) According to the invention described in claim 3, when there is a call registration to a floor where travel is impossible at the time of a power failure, the registration is accepted without refusal, and “not before the registration floor” is notified by the notification means. That the power failure operation may be terminated by traveling to the floor where the vehicle can travel. This gives the elevator users a sense of security, allowing them to act calmly in the event of a power outage, and to reach the driveable floor that is close to the callable and unrunnable floor, which is extremely beneficial. large.
(5) According to the invention described in claim 4, when it becomes impossible to travel after the call registration to the travelable floor at the time of a power failure, the registration is accepted without cancellation, and the notification means “ It is possible to notify that “the power outage operation may be terminated by traveling to the floor where the traveling is possible before the registration floor”. This gives the elevator users a sense of security, allowing them to act calmly in the event of a power outage, and to reach the accessible floor near the call registration floor where they are unable to travel. Is big.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited to the following embodiments.

  FIG. 1 shows the overall configuration of the present embodiment. Reference numeral 1 denotes a drive device that drives an electric motor for driving an elevator. The drive device 1 includes a PWM (pulse width modulation) converter or a rectifier, and is connected to a converter 3 that converts AC power of a commercial power source 2 (AC power source) into DC power, and a DC side of the converter 3. Is provided with an inverter 4 that converts AC to AC power.

  5 is a hoisting machine driven by an electric motor 6. A main rope 7 is wound around the hoisting machine 5. A car 8 is provided at one end of the main rope 7, and a counterweight 9 is provided at the other end. It is connected.

  10 is a storage battery control unit for controlling the power of the storage battery 11, a bidirectional converter (buck-boost circuit) 12 having one end connected to the common connection point of the converter 3 and the inverter 4 and the other end connected to the storage battery 11; And an inverter (not shown) that converts the DC power of the bidirectional converter 12 into AC power.

  13 is a controller that uses the AC output of an inverter (not shown) of the commercial power source 2 or the storage battery control unit 10 as a power source, and performs various types of control of the elevator by a computer. The calculation means 14 which calculates etc. is provided.

  15 is a notifying means for determining the travelable floor based on the storage battery dischargeable time and the power failure operation travel time obtained by the computing means 14, and notifying the travelable floor and the travel impossible floor. It is notified that the user can travel to each floor at the stage of getting on the car and that the service to the floor where the user cannot travel due to insufficient remaining capacity of the storage battery 11 may not be performed.

  For example, the notification means 15 is configured by installing a notification device that appeals to visual or auditory senses in the car 8 or at the hall, or both. It is configured not to turn on the built-in call registration lamp.

  In the apparatus configured as described above, when the commercial power source 2 is healthy, for example, AC 200V AC power is supplied to the converter 3 and the controller 13, and the inverter 4 converts the DC output of the converter 3, for example DC 300V, to AC power. Then, the electric motor 6 is supplied to perform normal operation of the elevator, and the bidirectional converter 12 steps down the DC voltage (DC 300V) of the converter 3 to charge the storage battery 11 to DC 180V, for example.

  In the event of a power failure of the commercial power supply 2, the voltage of the storage battery 11 is discharged and boosted to 300 VDC by the bidirectional converter 12 and supplied to the DC side of the inverter 4, and the discharge power of the storage battery 11 is supplied to the bidirectional converter 12 and the storage battery control unit. 10 inverters (not shown) convert it into AC 200V AC power and supply it to the controller 13.

  As a result, the same voltage (300 VDC) as that at the normal time is supplied to the inverter 4 at the time of a power failure, and the power failure operation is performed without the emergency stop of the elevator.

  The operations of the calculation means 14 and the notification means 15 from the start to the end of the power failure operation are performed, for example, according to the flowchart of FIG. The flowchart of FIG. 2 is executed by a program of the controller 13, for example.

2, first the temperature table of the ambient temperature in the step S ₁ and the battery capacity, and calculates the battery capacity A [Ah] of the blackout start of operation of the storage battery 11. Next, the battery current from the first run to the (n-1) th run is integrated, and the battery consumption capacity B [Ah] is integrated (steps S ₂ and S ₃ ).

In step S ₄ (n-1) th battery remaining capacity after traveling (A-B =) to calculate the C [Ah]. In step S _5, the battery from the loading information of the n-th running of the n-th traveling elevators in front of the traveling direction and the car 8 (load) to predict the current D [A]. In step S _6, because the battery remaining capacity C [A] and the predicted battery current D [A] and calculates the battery (load) current D [A] dischargeable time T1 [sec] of (dischargeable Time = travelable time).

Next calculate the distance to the current position and the service floors in step S _7, calculates the outage operation running time T2 [sec]. In step S _8, the dischargeable time T1 [sec] and the power failure operating running time T2 to compare [sec], the travelable floor in the case of T1> T2.

For travelable floor notifies the user of the travelable floor in step S _9. As a method of notification, for example, a method of blinking a call button on a floor capable of traveling or lighting a lamp of another color with a button having two or more colors of LEDs, lamps, or the like is used. It is also possible to notify by announcement.

After then the registrations of calls to the travelable floor in step S ₁₀ is performed, if it becomes impossible traveling by increasing or decreasing of the car in the load, the service in step S _11, in front of the floor than floor registered Announces in advance that there is a possibility of termination.

On the other hand, the floors where it is determined that the travel-disabled in step S _8, the call buttons is the normal state capable of accepting call registration (step S _12), of the call registration to the travel-disabled floor in Step S ₁₃ If there is notification in advance in the announcement or the like to the effect that may than floors registered in step S ₁₄ the service is completed in front of the floor.

Then is performed the n-th traveling in step S _15, if the travelable floor there returns to step S _2, when there is no travelable floor terminates the power outage operation.

  As described above, stoppage between floors can be prevented, and at the same time when the user can get on the floor where the user can get on the car, it may not be possible to provide service to the floor that cannot travel due to insufficient battery power. It becomes possible to notify the user that there is.

  The traveling speed of the elevator during the power failure operation is kept constant regardless of the remaining battery capacity of the storage battery 11, for example.

1 is an overall configuration diagram of an embodiment of the present invention. The flowchart of the principal part operation | movement in one example of embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Drive apparatus 2 ... Commercial power supply 3 ... Converter 4 ... Inverter 5 ... Hoisting machine 6 ... Electric motor 7 ... Main rope 8 ... Car 9 ... Balance weight 10 ... Storage battery control part 11 ... Storage battery 12 ... Bidirectional converter 13 ... Controller 14 ... Calculation means 15 ... Notification means

Claims (4)

In the power failure operation system of the elevator that runs to the target floor without emergency stop by the storage battery power at the time of AC power failure, and then continues the operation multiple times,
Based on the traveling direction of the elevator and the load in the car, the storage battery current at the time of n (n is a positive number) traveling is predicted, the dischargeable time of the storage battery is calculated from the remaining storage battery capacity and the predicted storage battery current,
Calculation means for calculating the power outage driving time based on the current position of the elevator, the distance to each service floor and the power outage operation speed,
A power failure operation apparatus for an elevator, comprising: an informing means for determining a travelable floor based on a dischargeable time and a power failure operation travel time of the storage battery and notifying the travelable floor and the travel impossible floor.   The said storage battery remaining capacity is calculated from the storage battery capacity | capacitance at the time of a power failure operation start, and the storage battery electric current integrated value when a power failure operation is performed n-1 times, The power failure operation apparatus of the elevator of Claim 1 characterized by the above-mentioned.   The notification means that, when a call registration is made to the informed travel impossible floor, the power outage operation may be terminated by traveling to a travelable floor before the registered floor. The elevator blackout operation apparatus according to claim 1 or 2, characterized by the above-mentioned. After the call registration to the reported travelable floor is made and the travel to the registered floor becomes impossible due to increase / decrease in the load in the car, the notifying means will travel to the travelable floor before the registered floor. The power failure operation device for an elevator according to claim 1, 2 or 3, characterized in that the power failure operation may be terminated by the traveling of the vehicle.

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