CN103595290B - Modularized electronic switch for high-voltage oscillation wave generator - Google Patents

Abstract

The invention discloses a modularized electronic switch for a high-voltage oscillating wave generator, which mainly includes a disc-type printed circuit board with an IGBT switch series structure as the main body, a corresponding multi-channel output through-core isolated power supply and an optical fiber control unit. The invention arranges and winds the IGBT switch units into a disk-type series structure, realizes voltage equalization and synchronous conduction among a plurality of IGBT switch units, and solves the problems that the traditional high-voltage switch action speed is not fast enough and the power level is not high enough. The multi-channel output isolated power supply structure realizes multi-channel isolated power supply without reducing the power level and operating speed, improves the integration degree of the switch, optimizes the structure of the switch, and can also be used for occasions with higher voltage levels. It has the characteristics of flexible use, portability, and easy repair and maintenance. It is especially suitable for power companies to carry out high-voltage oscillatory wave test tests on the insulation state of distribution cables.

Description

A modular electronic switch for a high-voltage oscillatory wave generator

technical field

The invention relates to the partial discharge monitoring technology of electric power equipment and its application field, relates to a device specially used in a power cable weakly damped oscillatory wave test system, and in particular to a modular electronic switch for a high-voltage oscillatory wave generator.

Background technique

The preventive test of AC power cables is an important content to ensure the reliable operation of the power grid. If the traditional power frequency withstand voltage test is carried out, the volume and weight of the transformer will become very large, which is difficult to meet the needs of on-site testing. In recent years, an advanced damped AC voltage test technology has been paid close attention by domestic and foreign power companies because of its good equivalence to the AC withstand voltage test, small size, and simple operation. At present, many cable operation and test units in China have used the high-voltage oscillatory wave test system based on this technology to carry out practical applications on distribution network cables. Various defects in cables have been discovered and dissected and verified on site, and good results have been achieved.

The core part of the high-voltage oscillatory wave test system - the high-voltage switch module traditionally uses an air gap to obtain sufficient withstand voltage and flow capacity, but the air gap has a large discharge dispersion, the discharge timing is not easy to control, the life is short, and the noise is large , has disadvantages such as air pollution, and has been gradually replaced by semiconductor switches. However, there are still some technical problems to be solved in practical applications, such as: 1) Traditional semiconductor devices such as thyristors, MOSFETs, etc. have their own shortcomings, such as the slow operation speed of thyristors, poor high voltage resistance of MOSFETs, However, traditional IGBT modules are costly and bulky, and there is an urgent need for devices with stronger comprehensive performance to build switch modules; 2) According to the traditional semiconductor manufacturing process level, it is difficult to use only a single device to meet the requirements for high-voltage tests. The voltage level requirements of tens or even hundreds of kilovolts, so the series use of multiple semiconductor power devices is unavoidable. The use of multiple devices in series needs to solve the problem of voltage equalization and synchronous triggering among the devices; 3) The voltages between multiple semiconductor power devices often differ by more than thousands of volts, so the respective power supply modules must be considered High-voltage isolation, and the traditional isolation transformer structure makes the switch system bulky, heavy and difficult to transport, so a more portable and simple multi-output isolated power supply system that can meet the requirements of high-voltage isolation is needed; 4) A single high-voltage switch only It can be applied to the test environment at one voltage level, so it is necessary to consider the modularization of high-voltage switches, so that the voltage level can be improved only by cascading several modules.

Therefore, how to design a set of modular electronic switches to meet the requirements of high voltage and high current while having the characteristics of safety, portability, and expandability is an important topic in the field of current power equipment research and design.

Contents of the invention

The invention provides a modular electronic switch for a high-voltage oscillatory wave generator, which solves the technical difficulties of low power density, short life, slow action speed, and large switching loss of the existing high-voltage switch for an oscillatory wave test system, and improves the related field. It optimizes the traditional structure and layout of the oscillatory wave test system. It has the characteristics of simple structure, easy expansion to various voltage levels, and light appearance.

The technical scheme adopted in the present invention is as follows:

A modular electronic switch for a high-voltage oscillatory wave generator, comprising a plurality of switch units, a power supply unit for supplying power to the plurality of switch units, and a control unit for controlling the off-state of the plurality of switch units, the plurality of switch units are connected in series , the ground terminal of the switch unit is connected to the ground terminal of the high-voltage oscillating wave generator, and the high-voltage terminal of the switch unit is connected to the DC high-voltage terminal of the high-voltage oscillating wave generator; each of the switch units includes a chip for controlling the IGBT and is connected to the The optical fiber receiver at the input end of the chip trigger signal; the control unit includes a power supply, a trigger switch, a current amplification unit connected to the output end of the trigger switch, and an optical fiber transmitter group, which is connected to the optical fiber receiver of the switch unit through an optical fiber , the control unit controls the opening and closing of the switch unit according to whether the trigger switch is triggered.

As a preferred embodiment of the present invention, the power supply unit adopts a flyback PFC power supply topology to realize the isolated power supply of multiple IGBTs, mainly including coupling transformers, rectifier bridges, and PFC converters connected in sequence, and the power supply unit further includes There are semiconductor switches, magnetic cores, rectifier diodes, filter capacitors, and primary side coils and secondary side coil groups wound on the magnetic cores; wherein, the output end of the PFC converter is connected to the gate G of the semiconductor switch, and the The rectifier diode and the filter capacitor are connected in series to both ends of the secondary side coil, and the two ends of the primary side coil are respectively connected to the source S of the semiconductor switch and the other output terminal of the PFC converter, and the drain of the semiconductor switch D is grounded.

As a preferred embodiment of the present invention, the coupling transformer is a step-down transformer, which adopts a toroidal transformer with 220VAC input and 36VAC output; the rectifier bridge and the PFC converter are connected in series to form a rectification and power factor correction unit. The correction unit is cascaded with a rectifier bridge with a flow capacity of not less than 15A and a power factor correction chip UC3845.

As a preferred embodiment of the present invention, the primary side coil is no more than two turns, and the secondary side coil group has only one turn to prevent magnetic core saturation; the semiconductor switch is a low on-resistance MOSFET with a withstand voltage of more than 100V and a current capacity of more than 20A .

As a preferred embodiment of the present invention, the relative magnetic permeability of the magnetic core is not less than 2000, the saturation magnetic induction is not less than 0.5T, and the residual magnetic induction is not greater than 0.2T; The recovery diode; the capacitance value of the filter capacitor is not less than 4700uF; the topology of the switching units is the same, and after series connection, they are combined into a disc printed circuit board in a convergent shape, and connected to the power supply unit one by one at the center of the disc.

As a preferred embodiment of the present invention, each switch unit further includes a voltage regulating circuit, a driving circuit, an IGBT semiconductor device, and a voltage equalizing circuit; wherein, the driving circuit includes a chip, a power amplification unit and a short circuit protection unit, and the voltage regulating circuit It is connected to the power supply unit, the output end of the voltage regulating circuit is connected to the input end of the chip, and the output end of the chip is connected to the power amplification unit; there are two output ends of the power amplification unit, one of which passes through the gate resistor Connected to the g terminal of the IGBT, the other branch of the power amplification unit is directly connected to the e terminal of the IGBT, in addition, an anti-series regulator tube is connected between the gate resistor and the e terminal of the IGBT, and the short circuit protection unit The other end is connected to the c-terminal of the IGBT, and finally, a voltage equalizing circuit is further connected between the c-terminal and the e-terminal of the IGBT.

As a preferred embodiment of the present invention, the voltage regulating circuit adjusts so that the input voltage of the drive circuit is not greater than 12V; the turn-on speed of the drive circuit is less than 500ns, and the output peak current is greater than 3A; the IGBT semiconductor device meets the requirements of the withstand voltage is not low At 2.52.5kV, the flow capacity is not less than 50A.

As a preferred embodiment of the present invention, the power supply of the control unit is a 5V switching power supply, and the trigger switch is a toggle mechanical switch connected in series with an anti-shake circuit.

As a preferred embodiment of the present invention, the switch units are arranged and combined in a converging form to form a disc-shaped printed circuit board, wherein fan-shaped openings are opened between the first and last switch units to ensure sufficient height between them. Voltage insulation distance.

As a preferred embodiment of the present invention, the switch units are connected in series through silicon rubber insulated wires with a withstand voltage of 50kVDC; the control unit is integrated on the control circuit board and connected to the switch units through optical fibers.

Compared with the prior art, the modularized electronic switch for the high-voltage oscillating wave generator of the present invention has at least the following beneficial effects: the present invention connects a plurality of switch units in series, increases the applicable power of the high-voltage switch, and the withstand voltage reaches 20kV, and the current flow The capacity reaches 50A, especially the doubled voltage can be realized by cascading multiple forms of the present invention, which improves the applicability and expandability of the electronic switch; in addition, the present invention realizes the switch unit, the power supply unit and the power supply without using the isolation transformer The voltage isolation of tens of kilovolts between units makes the structure of the equipment more reasonable.

Description of drawings

The above is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is a schematic diagram of the composition of a modular electronic switch for a high-voltage oscillatory wave generator of the present invention.

Fig. 2 is a schematic diagram of the basic structure of a power supply unit of a modular electronic switch for a high-voltage oscillatory wave generator according to the present invention.

Fig. 3 is a schematic circuit diagram of a switch unit of a modular electronic switch for a high-voltage oscillatory wave generator according to the present invention.

Fig. 4 is a schematic circuit diagram of a control unit of a modular electronic switch for a high-voltage oscillatory wave generator according to the present invention.

Fig. 5 is a schematic diagram of the overall appearance and structure of a modular electronic switch for a high-voltage oscillatory wave generator according to the present invention.

detailed description

Please refer to FIG. 1 and FIG. 5 , in terms of circuit structure, the present invention is mainly composed of a power supply unit 11 , switch units 12 , 13 , . . . 111 , and a control unit 112 . The power supply unit 11 and the control unit 112 are respectively connected to the switch unit.

Please refer to FIG. 3 in particular. The switch units 12-111 have the same topological structure, and each switch unit includes a voltage regulating circuit 31, a drive circuit 32, an IGBT semiconductor device 33 of BIMOSFET technology, a voltage equalizing circuit 34, and an optical fiber receiver. 35. Wherein, the driving circuit 32 includes a chip, a power amplification unit and a short circuit protection unit; the voltage regulating circuit is connected to the power supply output end of the power supply unit 11, the output end of the voltage regulating circuit 31 is connected to the input end of the chip, and the output end of the chip is connected to the input end of the chip. The power amplifying unit is connected, the optical fiber receiver 35 is connected to the trigger signal input end of the chip, and the short circuit protection unit is connected to the enabling end of the chip; there are two output ends of the power amplifying unit, one of which is connected to the The g terminal of the IGBT33, the other branch of the power amplification unit is directly connected to the e terminal of the IGBT33, in addition, an anti-series regulator tube is connected between the gate resistor and the e terminal of the IGBT33, and the other end of the short circuit protection unit It is connected to the c terminal of the IGBT33, and finally, a voltage equalizing circuit 34 is further connected between the c terminal and the e terminal of the IGBT33. The switch units 12-111 are connected in series, the ground terminal of the switch unit 12 is connected to the ground, the high voltage terminal of the switch unit 111 is connected to the high voltage output terminal of the oscillatory wave test system; the optical fiber receiver 35 receives the triggered optical signal and converts it into an electrical signal to control the IGBT action ; The voltage equalizing circuit realizes equal voltage sharing between each switching unit.

The voltage regulating circuit 31 adjusts so that the input voltage of the drive circuit is not greater than 12V. The present invention uses a linear voltage regulator chip 7812, and then converts the single +12V power supply into +15V, -8V dual power supply through the chip QQ04. In order to ensure reliable driving of the IGBT, the driving circuit 32 should meet the requirement that the turn-on speed is less than 500 ns, and the output peak current is greater than 3 A. Preferably, the present invention uses the external power amplifier TIP41C of the TD350 chip for driving. The IGBT semiconductor device 33 should have a sufficient power level, and should satisfy a withstand voltage of not less than 2.5kV and a flow capacity of not less than 50A. Preferably, the present invention uses the IXB86N300 chip of the BIMOSFET process, with a withstand voltage of 3kV and a flow capacity of 86A. The voltage equalizing circuit 34 uses a 5MΩ high voltage non-inductive resistor. The optical fiber receiver 35 is HFBR2522 of AVAGO Company.

Please refer to FIG. 2 in particular. The power supply unit 11 adopts a flyback PFC power supply topology to realize isolated power supply of ten IGBT units, and mainly includes a coupling transformer 21, a rectifier bridge, and a PFC converter (that is, a power factor correction converter ), MOSFET semiconductor switch 214, magnetic core 215, rectifier diodes 216-225, filter capacitors 226-235, primary side coil 23 and secondary side coil group 24-213 wound on the magnetic core 215. Wherein, the input end of coupling transformer 21 is mains, the output end of coupling transformer 21 is connected the input end of described rectifier bridge, the output end of described rectifier bridge is connected the input end of PFC converter, the output end of described PFC converter Connect the gate G of the MOSFET semiconductor switch, the rectifier diodes 216-226 and filter capacitors 226-235 are connected in series to both ends of the secondary side coil, the secondary side coil has one turn, the primary side coil has two turns, and the two The two ends of the turn primary side coil are respectively connected with the source S of the MOSFET semiconductor switch and the other output terminal of the PFC converter, and the drain D of the MOSFET semiconductor switch is grounded. The rectifier diode and the filter capacitor are connected in series to form the power supply output end of the entire power supply unit. When the PFC converter controls the MOSFET semiconductor switch to be turned on, the primary side coil of the magnetic core 215 starts to store energy. At this time, the coupling transformer 21 couples the switch Unit power supply; when the PFC converter controls the MOSFET semiconductor switch to turn off, the primary side coil of the magnetic core 215 releases energy to the secondary side coil, so as to supply power to the switch unit.

The coupling transformer 21 is a step-down transformer, which adopts 220VAC input and 36VAC output. The rectification bridge and the PFC converter are connected in series to form a rectification and power factor correction unit 22. The rectification and power factor correction unit 22 adopts a rectification bridge with a flow capacity of not less than 15A and a power factor correction chip UC3845 to be cascaded. The primary side coil 23 has no more than two turns, and the secondary side coil groups 24 - 213 have only one turn to prevent the magnetic core 215 from being saturated. The MOSFET semiconductor switch 214 should use a low on-resistance MOSFET with a withstand voltage of more than 100V and a flow capacity of more than 20A. Preferably, the type of MOSFET used in the present invention is IRFP260. The magnetic core 215 must meet the requirements that the relative permeability is not less than 2000, the saturation magnetic induction is not less than 0.5T, and the residual magnetic induction is not greater than 0.2T. Preferably, the magnetic core used in the present invention is an iron core with an outer diameter of 102mm, an inner diameter of 85mm, and a height of 2mm. The oxygen core has an initial relative permeability of 2500, a saturation magnetic induction of 0.54T, and a residual magnetic induction of 0.2T. The rectifier diodes 216-225 should use fast recovery diodes with a flow capacity not less than 3A. Preferably, the present invention uses a diode with a model number of BYV36C. The capacitance of the filter capacitors 226-235 is not less than 4700uF. Preferably, the present invention uses aluminum electrolytic capacitors with a capacitance of 6800uF and a withstand voltage of 50V.

The control unit 112 is mainly composed of a power supply 41 , a trigger switch 42 , a current amplification unit 43 , and an optical fiber transmitter group 44 - 53 . Wherein, the optical fiber transmitter groups are respectively connected to the optical fiber receivers 35 of the corresponding switch units through optical fibers. The control unit 112 controls the off state of the switch unit according to whether the trigger switch 42 is triggered.

The power supply 41 uses a 5V switching power supply, the trigger switch 42 uses a toggle mechanical switch series anti-shake circuit, the current amplifying unit 43 uses an NPN transistor FJD3076, and the fiber optic transmitter group 44-53 uses HFBR1522 from AVAGO Company. The length of the optical fiber is 2m.

In terms of specific appearance, the present invention mainly consists of a disc-shaped printed circuit board 51, a power supply board circuit board 52, a control circuit board 53, and optical fibers 54-513.

The disc-shaped printed circuit board 51 is mainly composed of switch units 12 , 13 , . . . 111 arranged in a convergent shape. On the disc-shaped printed circuit board 51 , the switch units 12 , 13 , . Simultaneously, the following integration has also been done on the disc-shaped printed circuit board 51:

1) The core 215 is integrated in the center; 2) The front ends of the switch units 12-111 are respectively integrated with rectifier diodes 216-225, capacitors 226-235, secondary side coil groups 24-213, each secondary side coil and the corresponding switch unit The switch unit and the control circuit board 53 are connected by optical fibers; 3) The center of the disc is perforated for the primary side coil 23 to bypass the magnetic core 215; 4) The disc is connected between the switch unit 12 and the switch unit 111 Open fan-shaped openings to ensure sufficient high-voltage insulation distance between the two.

The power supply unit 11 is coupled to the disc-shaped printed circuit board 51 through the primary side coil 23 wound on the magnetic core 215 to provide energy thereto.

The power supply circuit board 52 integrates all elements in the power supply unit 11 except the components integrated on the disk.

The control circuit board 53 integrates all elements in the control unit 112 .

The present invention is used as a high-voltage switch part of a high-voltage oscillatory wave generator. After the oscillatory wave generator applies a high voltage, the weakly damped LC resonant oscillatory wave is generated through the rapid conduction of the modularized electronic switch provided by the present invention. The specific implementation method is divided into two types: one modular electronic switch generates 20kV level oscillating wave and expands to two modular electronic switches cascaded to generate 40kV level oscillating wave. Two specific implementation methods are described respectively below:

1) A single modular electronic switch generates 20kV level oscillating waves. The low-voltage end of the switch unit 12 is connected to the low-voltage end of the high-voltage oscillatory wave generator, and the high-voltage end of the switch unit 111 is connected to the DC high-voltage end of the high-voltage oscillatory wave generator. The specific process is that after the power supply unit 11 is powered on, the control unit 112 controls the switch units 12-111 to be in the off state during the linear pressurization stage of the high-voltage oscillatory wave generator; after the pressurization is completed, the trigger switch of the control unit 112 is turned on, The control switch units 12 to 111 are simultaneously turned on and maintained in a turned-on state, and the turn-on speed is 500 ns. After the high-voltage switch is turned on, the sample C, the inductor L and the internal resistance R of the inductor L form an LCR damping resonant circuit, and a weakly damped LC series resonant oscillation wave of up to 20kV is generated on the sample C.

2) Two modular electronic switches are cascaded to generate 40kV level oscillating waves. The two disk-shaped printed circuit board units 51 in the present invention are stacked together and used in series, the primary side coil 23 passes through the center of the two disks, and 10 optical fiber control signal access channels are expanded in the control circuit board 53 Another disc-shaped printed circuit board will do. When specifically connecting to the high-voltage oscillatory wave generator, connect the high-voltage end of the switch unit 111 of the upper disc to the high-voltage end of the high-voltage oscillatory wave generator, and connect the low-voltage end of the switch unit 12 of the lower disc to the high-voltage oscillatory wave generator According to the same implementation method in 1), a 40kV level oscillation wave can be generated.

After adopting above design, the present invention has following advantage at least:

1. The present invention uses a new type of BIMOSFET process IGBT chip to replace the traditional IGBT module, which reduces the size of the device while maintaining the same withstand voltage level, improves the operating speed of the switch, and reduces the cost;

2. The present invention divides the voltage of the series switch units evenly, so that the voltage distribution of each switch unit is more uniform; using the same length of optical fiber to control the action of the modular electronic switch realizes the synchronous triggering between each switch unit, avoiding It prevents the failure of the electronic switch due to the different switching speed during the action process, which improves the reliability of the equipment; at the same time, the optical fiber trigger method realizes the high voltage isolation of the control module, so that the personal safety of the operator is better guaranteed;

3. The present invention adopts a new type of power supply mode, which improves the power supply, realizes the series connection of more switch units, increases the applicable power level of the high-voltage switch, and the final withstand voltage reaches 20kV, and the current flow capacity Reaching 50A; in particular, the voltage can be doubled by cascading multiple forms of the present invention, which improves the applicability and expandability of the electronic switch;

4. The present invention realizes tens of kilovolts of voltage isolation between the switch unit and the power supply unit, and between the power supply units without using an isolation transformer. The structure of the equipment is more reasonable, and the volume and weight of the modular electronic switch are greatly reduced. Easy to transport and carry.

5. The present invention winds the IGBT switch units into a disk-type series structure, realizes voltage sharing and synchronous conduction among multiple IGBT switch units, and solves the problem that the traditional high-voltage switch action speed is not fast enough and the power level is not high enough question. The multi-channel output isolated power supply structure realizes multi-channel isolated power supply without reducing the power level and operation speed, improves the integration degree of the switch, optimizes the structure of the switch, and can also be used for occasions with higher voltage levels. It has the characteristics of flexible use, portability, and easy repair and maintenance. It is especially suitable for power companies to carry out high-voltage oscillatory wave test tests on the insulation state of distribution cables.

The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Those skilled in the art make some simple modifications, equivalent changes or modifications by using the technical content disclosed above, all of which fall within the scope of the present invention. within the scope of protection of the invention.

Claims (9)

1. a high-voltage oscillation wave producer modular electronic switch, it is characterized in that: the power supply unit (11) comprising multiple switch element (12-111), power for multiple switch element (12-111), and control the control unit (112) that multiple switch element (12-111) cut-offs state, described multiple switch element is connected in series with each other, the earth terminal of switch element is connected with the earth terminal of high-voltage oscillation wave producer, and the high-pressure side of switch element is connected with the high direct voltage end of high-voltage oscillation wave producer; Each switch element described includes the chip of control IGBT and is connected to the fiber optic receiver (35) of chip triggering signal input; Described control unit comprises power supply (41), trigger switch (42), is connected to the current amplification unit (43) of trigger switch output, and fiber optic emitter group (44-53), fiber optic emitter group is connected with the fiber optic receiver of switch element by optical fiber, and whether described control unit (112) is triggered by trigger switch (42) and the cut-offfing of control switch unit; The isolation that described power supply unit (11) adopts inverse-excitation type PFC power supply topologies to realize multichannel IGBT is powered, mainly comprise the coupling transformer (21), the rectifier bridge that connect successively, and pfc converter, described power supply unit (11) includes semiconductor switch (214), magnetic core (215), rectifier diode (216 ~ 225), filter capacitor (226 ~ 235) further, and the first siding ring (23) be wrapped on magnetic core (215) and second siding ring group (24-213); Wherein, the output of described pfc converter connects the grid G of semiconductor switch, described rectifier diode (216-225) and filter capacitor (226-235) are connected to the two ends of second siding ring after connecting, the two ends of first siding ring are connected with an other output of pfc converter with the drain D of semiconductor switch respectively, the source S ground connection of described semiconductor switch.

2. a kind of high-voltage oscillation wave producer modular electronic switch according to claim 1, is characterized in that: described transformer (21) is step-down transformer, adopts the toroidal transformer of 220VAC input, 36VAC output; Form rectification and power factor correction unit (22) after described rectifier bridge and pfc converter series connection, this rectification and power factor correction unit (22) adopt the rectifier bridge and the power factor correction chip UC3845 cascade that are not less than 15A through-current capability.

3. a kind of high-voltage oscillation wave producer modular electronic switch according to claim 1, it is characterized in that: described first siding ring (23) is not more than two circles, second siding ring group (24 ~ 213) only a circle to prevent magnetic core (215) saturated; Semiconductor switch (214) is withstand voltage more than 100V, the low open resistance MOSFET of more than through-current capability 20A.

4. a kind of high-voltage oscillation wave producer modular electronic switch according to claim 1, is characterized in that: described magnetic core (215) relative permeability is not less than 2000, saturation induction density is not less than 0.5T, residual magnetic flux density is not more than 0.2T; Described rectifier diode (216 ~ 225) is not less than the fast recovery diode of 3A for through-current capability; The capacitance of filter capacitor (226 ~ 235) is not less than 4700uF; Switch element (12 ~ 111) topological structure is identical, and after series connection, converge like the spokes of a wheel at the hub shape is combined into disk printed circuit board, is connected one by one in disc centre with power supply unit (11).

5. a kind of high-voltage oscillation wave producer modular electronic switch according to claim 1, it is characterized in that: described each switch element comprises regulating circuit (31), drive circuit (32), IGBT semiconductor device (33) further, and equalizer circuit (34); Wherein, drive circuit (32) comprises chip, power amplification unit and short-circuit protection unit, regulating circuit is connected with power supply unit (11), the output of described regulating circuit (31) is connected with the input of chip, and the output of chip is connected with power amplification unit; The output of described power amplification unit has two; wherein one is connected to the g end of IGBT (33) by gate electrode resistance; the other e being connected directly between IGBT (33) of power amplification unit holds; in addition; the voltage-stabiliser tube of anti-series is connected with between gate electrode resistance and the e end of IGBT (33); other one end of described short-circuit protection unit is connected to the c end of IGBT (33); finally, between the c end and e end of IGBT (33), equalizer circuit (34) is connected with further.

6. a kind of high-voltage oscillation wave producer modular electronic switch according to claim 5, is characterized in that: described regulating circuit (31) regulates and makes the input voltage of drive circuit be not more than 12V; The speed of opening of described drive circuit is less than 500ns, exports peak current and is greater than 3A; Described IGBT semiconductor device meets and is withstand voltagely not less than 2.5kV, and through-current capability is not less than 50A.

7. a kind of high-voltage oscillation wave producer modular electronic switch according to claim 1, it is characterized in that: the power supply (41) of described control unit adopts the Switching Power Supply of 5V, trigger switch (42) adopts stirs mechanical switch series connection Anti-shaking circuit.

8. a kind of high-voltage oscillation wave producer modular electronic switch as claimed in any of claims 1 to 7, it is characterized in that: the converge like the spokes of a wheel at the hub shape permutation and combination of described switch element (12-111) forms disc printed circuit board (51), wherein, fan-shaped mouth is offered, to ensure therebetween High-Voltage Insulation distance fully between first place and the switch element at end.

9. a kind of high-voltage oscillation wave producer modular electronic switch according to claim 8, be is characterized in that: connected by the silicon rubber insulation line of withstand voltage 50kVDC between described switch element; Described control unit to be integrated on control circuit board and to be connected with switch element by optical fiber.