阅读说明：本技术 一种配电柜静电消除装置 (Switch board static remove device ) 是由 朱清智 袁铸 张毅 申一歌 白东峰 吕俊霞 靳果 孟庆辉 李名莉 于 2021-08-03 设计创作，主要内容包括：本发明一种配电柜静电消除装置,静电电荷处理电路接收静电传感器检测的配电柜内静电电荷,经转换为正或负电压,一路驱动继电器K1不动作或动作,另一路经转换为正电压、计算出静电荷变化量输出,高压驱动电路接收正电压,一路控制升压电路升压,升压后电压与反馈回来的高压差电压耦合,经产生PWM信号输出,补偿产生高压的误差,另一路与静电荷变化量信号耦合,经压频转换电路产生PWM信号输出,采取补偿、耦合以提高控制信号的精度,高压发生电路采用两路PWM信号控制升压电路升压为高压,输出正高压到放电板2,释放正电荷,输出负高压到放电板1,释放负电荷,以此根据静电的正负、大小使配电柜内静电被中和,达到消除静电的目的。(The invention relates to a static electricity eliminating device of a power distribution cabinet, wherein a static electricity charge processing circuit receives static electricity charge in the power distribution cabinet detected by a static electricity sensor, the static electricity charge is converted into positive or negative voltage, one path of the positive voltage drives a relay K1 to stop acting or act, the other path of the positive voltage drives a positive voltage to calculate static electricity variable quantity to be output, a high voltage driving circuit receives the positive voltage, one path of the positive voltage controls a boosting circuit to boost the voltage, the boosted voltage is coupled with high differential voltage fed back, PWM signals are generated to be output through generating PWM signals to compensate errors generated by high voltage, the other path of the positive voltage is coupled with the static electricity variable quantity signals, PWM signals are generated through a voltage frequency conversion circuit to output, compensation and coupling are adopted to improve the precision of control signals, a high voltage generating circuit adopts two paths of PWM signals to control the boosting circuit to be high voltage, outputs positive high voltage to a discharge plate 2 to release positive charge, outputs negative high voltage to a discharge plate 1 to release negative charge, therefore, the static electricity in the power distribution cabinet is neutralized according to the positive, negative and large of the static electricity, and the purpose of eliminating the static electricity is achieved.)

1. A static eliminating device of a power distribution cabinet comprises a static charge processing circuit, a high-voltage driving circuit and a high-voltage generating circuit, and is characterized in that the static charge processing circuit receives static charges in the power distribution cabinet detected by a static sensor, the static charges are converted into positive or negative voltage through a charge-voltage converter, when a sampling switch is closed, one path of the static charges is judged to be positive static or negative static through the conduction and cut-off state of a triode Q1, a driving relay K1 does not act or acts, the other path of the static charges is converted into positive voltage through an absolute value circuit, and the static charge variation quantity before and after the sampling switch is calculated through an operational amplifier AR 6;

the high-voltage driving circuit receives positive voltage output by the absolute value circuit, one path of the high-voltage driving circuit controls the boosting circuit with the transformer T2 as a core to boost voltage, the boosted voltage is coupled with high-voltage difference voltage fed back, a PWM signal generated by the voltage-frequency conversion circuit enters the high-voltage generation circuit, the other path of the high-voltage driving circuit is coupled with an electrostatic charge variable quantity signal, and a PWM signal generated by the voltage-frequency conversion circuit enters the high-voltage generation circuit;

the high-voltage generating circuit adopts a booster circuit with a transformer T1 as a core to boost voltage into high voltage, wherein the boosted voltage is controlled by two paths of PWM signals of a field effect tube grid which drives the transformer T1 to boost voltage, the high voltage is rectified and filtered, and then positive high voltage is output to a discharge plate 2 through an actuated relay K1 normally open contact K1-2 to release positive charge, or negative high voltage is output to the discharge plate 1 through an inoperative relay K1 normally closed contact K1-1 to release negative charge, so that static electricity in the power distribution cabinet is neutralized, and the purpose of eliminating the static electricity is achieved.

2. The static electricity eliminating device of a power distribution cabinet as claimed in claim 1, wherein said static electricity charge processing circuit comprises an operational amplifier AR1, the non-inverting input terminal of the operational amplifier AR1 is connected to ground, the inverting input terminal of the operational amplifier AR1, one terminal of a resistor R1 and one terminal of a capacitor C1 receive the static electricity charge in the power distribution cabinet detected by the static electricity sensor, the output terminal of the operational amplifier AR1 is respectively connected to the other terminal of a resistor R1, the other terminal of a capacitor C1, one terminal of the resistor R24 and the left terminal of a sampling switch KS1, the right terminal of the sampling switch KS1 is respectively connected to one terminal of a resistor R2, the cathode of a diode D2 and the anode of a diode D3, the other terminal of the resistor R2 is connected to the base of a transistor Q1, the emitter of the transistor Q1 is connected to ground, the collector of the transistor Q1 is respectively connected to the cathode of a diode D1 and one terminal of a coil of a relay K1, the anode of a diode D1 and the other terminal of the relay K1 is connected to a power supply-5V, the anode of the diode D2 is connected with one end of a grounding resistor R5 and the inverting input end of the operational amplifier AR2 through a resistor R3, the cathode of the diode D3 is connected with one end of a grounding resistor R6 and the non-inverting input end of the operational amplifier AR2 through a resistor R4, the output end of the operational amplifier AR2 is connected with the non-inverting input end of the operational amplifier AR6, the inverting input end of the operational amplifier AR6 is connected with the other end of the resistor R24, the output end of the operational amplifier AR6 is connected with the cathode of a voltage regulator tube Z2, and the anode of the voltage regulator tube Z2 is connected with one end of the resistor R7.

3. The static electricity elimination device of the power distribution cabinet as claimed in claim 1, wherein the high voltage generation circuit includes a transformer T1, one end of the primary winding of the transformer T1 is connected to the negative electrode of the diode D11 and the drain electrode of the fet Q3, the positive electrode of the diode D11 and the source electrode of the fet Q3 are connected to ground, the gate of the fet Q3 is connected to pin 1 of the chip U1, the center tap of the transformer T1 is connected to the power VCC, the other end of the primary winding of the transformer T1 is connected to the negative electrode of the diode D12 and the drain electrode of the fet Q4, the positive electrode of the diode D12 and the source electrode of the fet Q4 are connected to ground, the gate of the fet Q4 is connected to the right end of the bidirectional diode VD1 and one end of the ground resistor R23, the left end of the bidirectional diode VD1 is connected to the output end of the operational amplifier 4 through a resistor R22, one end of the secondary winding of the transformer T1 is connected to the positive electrode of the diode VD 9 and one end of the diode VD1, The cathode of the diode D10, the cathode of the diode D9 are connected with the anode of the electrolytic capacitor C7 and the left end of the normally open contact K2 of the relay K1 respectively, the right end of the normally open contact K2 of the relay K1 is connected to the discharge plate 2, the anode of the diode D10 is connected with the cathode of the electrolytic capacitor C8 and the left end of the normally closed contact K1 of the relay K1 respectively, and the right end of the normally closed contact K1 of the relay K1 is connected to the discharge plate 1.

4. The static electricity elimination device of the power distribution cabinet as claimed in claim 1, wherein said high voltage driving circuit includes a resistor R14 and an operational amplifier AR3, the left end of the resistor R14 is connected to the VCC, the source of the fet Q5, the other end of the resistor R14 is connected to the collector of the transistor Q2, one end of the capacitor C3, and the drain of the fet Q5, the gate of the fet Q5 is connected to the anode of the diode D4, the cathode of the diode D4 and one end of the grounding resistor R13, and the cathode of the electrolytic capacitor C2 are connected to the output end of the operational amplifier AR2, the other end of the capacitor C3 is connected to the anode of the diode D5 and one end of the primary coil of the transformer T2, the base of the transistor Q2 is connected to the upper end of the potentiometer RW1, the lower end of the potentiometer RW1, the emitter of the transistor Q2, the cathode of the diode D5, the other end of the primary coil of the transformer T2 is connected to the ground, and the other end of the secondary coil of the transformer T2 is connected to the ground, one end of a secondary coil of the transformer T2 is connected with the anode of a diode D6, the cathode of the diode D6 is respectively connected with the anode of a voltage regulator tube Z1, one end of a resistor R15 and a pin 6 of a chip U1, the cathode of the voltage regulator tube Z1 is respectively connected with one end of a resistor R20 and one end of a grounding resistor R19, the other end of a resistor R20 is connected with the output end of an operational amplifier AR5, the non-inverting input end of the operational amplifier AR5 is respectively connected with one end of a resistor R25 and one end of a grounding resistor R26, the other end of the resistor R25 is connected with one end of a secondary coil of the transformer T1, the inverting input end of the operational amplifier AR2 is connected with a reference high-voltage signal, a pin 7 of the chip U1 is respectively connected with one end of a grounding resistor R16 and one end of a resistor R16, the other end of the resistor R16, a pin 8 of the chip U16 and one end of the resistor R16 are connected with +5V, one end of a pin 2 of a chip U16 and one end of a pin 363 of the grounding potential U16 are connected with a power supply +5V, The pin 4 is connected to the ground, the pin 5 of the chip U1 is connected to the other end of the resistor R18 and one end of the grounded capacitor C5 respectively, the pin 1 and one end of the grounded resistor R21 of the chip U1 and one end of the grounded electrolytic capacitor C6 are connected to the gate of the fet Q3 respectively, the inverting input terminal of the operational amplifier AR3 is connected to one end of the resistor R8, the other end of the resistor R7 and one end of the resistor R11 respectively, the other end of the resistor R8 is connected to the output terminal of the operational amplifier AR2, the non-inverting input terminal of the operational amplifier AR3 is connected to one end of the resistor R9, the other end of the resistor R9 is connected to one end of the grounded resistor R10 and the negative electrode of the diode D7 respectively, the output terminal of the operational amplifier AR3 is connected to the negative electrode of the diode D3, the positive electrode of the diode D3 is connected to the other end of the resistor R3 and the non-inverting input terminal of the operational amplifier AR3 respectively, the inverting input terminal of the operational amplifier AR3 is connected to the one end of the resistor R3 and the positive electrode of the electrolytic capacitor C3, the output end of the operational amplifier AR4 is connected to the other end of the resistor R12, the anode of the diode D7 and one end of the resistor R22.

Technical Field

The invention belongs to the technical field of power distribution cabinets, and particularly relates to a static electricity eliminating device for a power distribution cabinet.

Background

The switch board is an important component in the distribution and transmission industry, and is a high-voltage or bottom-voltage distribution device formed by assembling switch equipment, measuring instruments, protective electrical appliances and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to the electrical wiring requirements.

At present, static elimination rods, ion fans and other static elimination equipment are usually installed in a power distribution cabinet, when static is detected, the static elimination equipment generates a large amount of air masses with positive and negative charges, the static charges in the power distribution cabinet are neutralized, the purpose of eliminating the static is achieved, the static elimination equipment cannot eliminate the static in a targeted manner according to the property (positive static or negative static) of the static, and the static elimination effect still cannot meet the requirement.

Disclosure of Invention

In view of the above situation, in order to overcome the defects of the prior art, the invention provides a static electricity eliminating device for a power distribution cabinet, which can eliminate static electricity in a targeted manner according to the nature and the size of the static electricity, and effectively solves the problem that the static electricity eliminating effect still cannot meet the requirements.

The technical scheme is that the static charge detection circuit comprises a static charge processing circuit, a high-voltage driving circuit and a high-voltage generating circuit, wherein the static charge processing circuit receives static charges in a power distribution cabinet detected by a static sensor, the static charges are converted into positive or negative voltage through a charge-voltage converter, when a sampling switch is closed, one path of the static charges is judged to be positive static or negative static through the conduction and cut-off state of a triode Q1, a driving relay K1 does not act or acts, the other path of the static charges is converted into positive voltage through an absolute value circuit, and the static charge variation quantity before and after the sampling switch is calculated through an operational amplifier AR 6;

the high-voltage driving circuit receives positive voltage output by the absolute value circuit, one path of the high-voltage driving circuit controls the boosting circuit with the transformer T2 as a core to boost voltage, the boosted voltage is coupled with high-voltage difference voltage fed back, a PWM signal generated by the voltage-frequency conversion circuit enters the high-voltage generation circuit, the other path of the high-voltage driving circuit is coupled with an electrostatic charge variable quantity signal, and a PWM signal generated by the voltage-frequency conversion circuit enters the high-voltage generation circuit;

the high-voltage generating circuit adopts a booster circuit with a transformer T1 as a core to boost voltage into high voltage, wherein the boosted voltage is controlled by two paths of PWM signals of a field effect tube grid which drives the transformer T1 to boost voltage, the high voltage is rectified and filtered, and then positive high voltage is output to a discharge plate 2 through an actuated relay K1 normally open contact K1-2 to release positive charge, or negative high voltage is output to the discharge plate 1 through an inoperative relay K1 normally closed contact K1-1 to release negative charge, so that static electricity in the power distribution cabinet is neutralized, and the purpose of eliminating the static electricity is achieved.

The invention has the beneficial effects that: static charges in a power distribution cabinet detected by a static sensor are converted into positive or negative voltage through a charge-voltage converter, one path of the static charges is judged to be positive static or negative static through the conduction and cut-off state of a triode Q1, a driving relay K1 does not act or acts, the other path of the static charges is converted into positive voltage, static charge variable quantity before and after a sampling switch is calculated through an operational amplifier AR6, one path of the positive voltage controls a boosting circuit to boost voltage, the boosted voltage is coupled with high-voltage-difference voltage fed back to compensate high-voltage errors, a PWM signal is generated through a voltage-frequency conversion circuit, the other path of the positive voltage is coupled with the static charge variable quantity signal, the PWM signal is generated through the voltage-frequency conversion circuit, and compensation and coupling are adopted to improve the precision of a control signal;

a boosting circuit consisting of a transformer T1, field effect tubes Q3 and Q4 and diodes D11 and D12 is adopted to boost the voltage into high voltage, wherein the boosting size is controlled by two paths of PWM signals of a field effect tube grid which drives the transformer T1 to boost the voltage, the high voltage is rectified in a forward direction through the diode D9 and filtered by an electrolytic capacitor C7, positive high voltage is output to a discharge plate 2 through a normally open contact K1-2 of an acting relay K1 to release positive charge, the high voltage is rectified in a reverse direction through the diode D10 and filtered by the electrolytic capacitor C8, negative high voltage is output to the discharge plate 1 through a normally closed contact K1-1 of the acting relay K1 to release negative charge, and therefore static electricity in a power distribution cabinet is neutralized according to the positive, negative and positive and negative charges of the static electricity, and the purpose of eliminating is achieved.

Drawings

FIG. 1 is a schematic diagram of an electrostatic charge processing circuit according to the present invention.

Fig. 2 is a schematic diagram of a high voltage drive circuit of the present invention.

Fig. 3 is a schematic diagram of a high voltage generation circuit of the present invention.

Detailed Description

The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings.

A static electricity eliminating device of a power distribution cabinet comprises a static electricity charge processing circuit, a high-voltage driving circuit and a high-voltage generating circuit, wherein the static electricity charge processing circuit receives static electricity charges in the power distribution cabinet detected by a static electricity sensor, the static electricity charges are converted into positive or negative voltage through a charge-voltage converter, when a sampling switch is closed, one path of the static electricity charges is judged to be positive static electricity or negative static electricity through the conduction and cut-off state of a triode Q1, a driving relay K1 does not act or acts, the other path of the static electricity charges is converted into positive voltage through an absolute value circuit, and the static electricity charge variation quantity before and after the sampling switch is calculated through an operational amplifier AR 6;

the high-voltage driving circuit receives positive voltage output by the absolute value circuit, one path of the high-voltage driving circuit controls the boosting circuit with the transformer T2 as a core to boost voltage, the boosted voltage is coupled with high-voltage difference voltage fed back to compensate and generate high-voltage error, a PWM signal generated by the voltage-frequency conversion circuit enters the high-voltage generation circuit, the other path of the high-voltage driving circuit is coupled with an electrostatic charge variable quantity signal, when the compensation charge variable quantity is large, the control signal needs to be updated in a sampling period, the problem of real-time strain is difficult, meanwhile, the problem of uncertainty of the signal caused by not adopting a sampling switch is avoided, and the PWM signal generated by the voltage-frequency conversion circuit enters the high-voltage generation circuit;

the high-voltage generating circuit adopts a boosting circuit consisting of a transformer T1, field effect tubes Q3 and Q4 and diodes D11 and D12 to boost the voltage into high voltage, wherein the boosting size is controlled by two paths of PWM signals of a field effect tube grid boosted by a driving transformer T1, the high voltage is rectified in the forward direction through a diode D9 and filtered by an electrolytic capacitor C7, the positive voltage is output to a discharge plate 2 through a normally open contact K1-2 of an acting relay K1 to release positive charges, the high voltage is rectified in the reverse direction through the diode D10 and filtered by the electrolytic capacitor C8, the negative high voltage is output to the discharge plate 1 through a normally closed contact K1-1 of the acting relay K1 to release negative charges, so that static electricity in the power distribution cabinet is neutralized according to the positive, negative and positive and negative charges, and the static electricity is eliminated.

In the above technical solution, the electrostatic charge processing circuit receives the electrostatic charge in the power distribution cabinet detected by the electrostatic sensor, the electrostatic charge is converted into a positive or negative voltage by a charge-voltage converter composed of an operational amplifier AR1, a resistor R1 and a capacitor C1, when the sampling switch KS1 is closed, one path of the electrostatic charge is judged to be the positive or negative electrostatic charge through the on-off state of a triode Q1, the relay K1 is driven to stop or operate, the other path of the electrostatic charge is converted into a positive voltage by an absolute value circuit composed of an operational amplifier AR2, a resistor R3-a resistor R6, a diode D2 and a diode D3, the electrostatic charge variation before and after the sampling switch is calculated by the operational amplifier AR6, the positive voltage and the variation are output to the high-voltage driving circuit, the operational amplifier AR1 is included, the non-phase input end of the operational amplifier AR1 is connected to the ground, the anti-phase input end of the operational amplifier AR1, one end of the resistor R1, one end of the capacitor C1 receives the electrostatic charge in the power distribution cabinet detected by the electrostatic sensor, the output end of the operational amplifier AR1 is connected to the other end of the resistor R1, the other end of the capacitor C1, one end of the resistor R24, and the left end of the sampling switch KS1, the right end of the sampling switch KS1 is connected to one end of the resistor R2, the cathode of the diode D2, and the anode of the diode D3, the other end of the resistor R2 is connected to the base of the transistor Q1, the emitter of the transistor Q1 is grounded, the collector of the transistor Q1 is connected to the cathode of the diode D1 and one end of the coil of the relay K1, the anode of the diode D1 and the other end of the coil of the relay K1 are connected to the power supply-5V, the anode of the diode D1 is connected to one end of the grounded resistor R1 and the inverting input end of the operational amplifier AR1 through the resistor R1, the cathode of the diode D1 is connected to one end of the grounded resistor R1 and the non-inverting input end of the operational amplifier AR1, the inverting input end of the operational amplifier AR1 is connected to the inverting input end of the operational amplifier AR1, the output end of the operational amplifier AR6 is connected with the negative electrode of a voltage regulator tube Z2, and the positive electrode of the voltage regulator tube Z2 is connected with one end of a resistor R7.

In the technical scheme, the high-voltage generating circuit adopts a boosting circuit consisting of a transformer T1, field effect transistors Q3 and Q4 and diodes D11 and D12 to boost the voltage into high voltage, wherein the boosting size is controlled by two paths of PWM signals of a field effect transistor grid for driving the transformer T1 to boost the voltage, the high voltage is rectified in the forward direction through the diode D9 and filtered by an electrolytic capacitor C7, the high voltage outputs positive high voltage to a discharge plate 2 through a normally open contact K1-2 of an acting relay K1 to release positive charge, the high voltage is rectified in the reverse direction through the diode D10 and filtered by an electrolytic capacitor C8, negative high voltage is output to the discharge plate 1 through a normally closed contact K1-1 of the acting relay K1 to release negative charge, so that static electricity in a power distribution cabinet is neutralized according to the positive and negative and the size of the static electricity, the purpose of eliminating is achieved, the transformer T1 is included, one end of a primary coil of the transformer T1 is respectively connected with the negative pole of a diode D11, the negative pole of the diode D1, the negative pole of the diode D3542, the negative pole of the negative pole, The drain of the field effect transistor Q3, the anode of the diode D11 and the source of the field effect transistor Q3 are connected to the ground, the gate of the field effect transistor Q3 is connected to the pin 1 of the chip U1, the center tap of the transformer T1 is connected to the power VCC, the other end of the primary coil of the transformer T1 is connected to the cathode of the diode D12 and the drain of the field effect transistor Q4 respectively, the anode of the diode D12 and the source of the field effect transistor Q4 are connected to the ground, the gate of the field effect transistor Q4 is connected to the right end of the bidirectional diode VD 28 and one end of the grounding resistor R23 respectively, the left end of the bidirectional diode VD1 is connected to the output end of the operational amplifier AR 22 through the resistor R22, one end of the secondary coil of the transformer T22 is connected to the anode of the diode D22 and the cathode of the diode D22 respectively, the cathode of the diode D22 is connected to the anode of the electrolytic capacitor C22, the left end of the normally open contact K22, the right end of the normally open contact K22 is connected to the discharge plate K22, and the discharge plate of the electrolytic capacitor C22, The left end of a relay K1 normally closed contact K1, and the right end of a relay K1 normally closed contact K1 are connected to the discharge plate 1.

In the technical scheme, the high-voltage driving circuit receives positive voltage output by an absolute value circuit, a boosting circuit consisting of a transformer T2, a resistor R14, a potentiometer RW1, a capacitor C3 and a diode D5 is controlled to boost voltage, specifically, when the positive voltage exceeds the voltage stabilizing value of a voltage stabilizing tube Z3 (namely exceeds the electrostatic threshold value in a power distribution cabinet), the voltage stabilizing tube Z3 is in reverse breakdown, a thyristor VTL1 is conducted, a power supply VCC is connected to the boosting circuit and is charged through the resistor R13 and an electrolytic capacitor C2, the diode D4 is reversely added to the grid of a field effect tube Q5, the field effect tube Q5 is used as a variable resistor, the value of a current limiting resistor R14 is changed, the conduction and cut-off speeds of the triode Q2 are changed, when the triode Q2 is conducted, the capacitor C3 discharges to the primary coil of a transformer T2 through the CE junction of the triode Q2, the primary coil of the transformer T2 is induced, the boosted voltage is output through the diode D6, and then is coupled with the high-voltage difference fed back, compensating the error of generating high voltage, generating PWM signal by a voltage-frequency conversion circuit, entering a high voltage generation circuit, calculating the difference between a reference high voltage signal (namely, high voltage required by eliminating the measured static electricity) and the collected high voltage output by a secondary coil of a transformer T1 by an operational amplifier AR5, dividing the voltage by resistors R19 and R20, converting the voltage into low voltage, then giving out the low voltage, coupling the other positive voltage with an electrostatic charge variation signal, when the compensation charge variation is large, updating a control signal at a sampling period, and avoiding the problem of difficult real-time strain, and avoiding the problem of uncertain signals caused by not adopting a sampling switch, entering the voltage-frequency conversion circuit composed of the operational amplifiers AR3, AR4, a resistor R7-resistor R12, diodes D7 and D8 and an electrolytic capacitor C4, generating PWM signal, entering the high voltage generation circuit, comprising a resistor R14 and an operational amplifier AR3, wherein the left end of the resistor R14 is connected with a power supply VCC, and a source of a field effect tube Q5, the other end of the resistor R14 is respectively connected with a collector of a triode Q2, one end of a capacitor C3 and a drain of a field effect tube Q5, a grid of the field effect tube Q5 is connected with an anode of a diode D4, a cathode of a diode D4, one end of a grounding resistor R13 and a cathode of an electrolytic capacitor C2 are connected with an output end of an operational amplifier AR2, the other end of the capacitor C3 is respectively connected with an anode of a diode D5 and one end of a primary coil of a transformer T2, a base of the triode Q2 is connected with the upper end of a potentiometer RW1, the lower end of the potentiometer RW1, an emitter of the triode Q1, a cathode of the diode D1, the other end of a primary coil of the transformer T1 are connected with the ground, the other end of a secondary coil of the transformer T1 is connected with the anode of the diode D1, a cathode of the diode D1 is respectively connected with an anode of a voltage regulator Z1, one end of a resistor R1, one end of a chip U1 and a cathode of a pin of a voltage regulator Z1 are respectively connected with an anode of the voltage regulator Z1, One end of a grounding resistor R19, the other end of a resistor R20 is connected with the output end of an operational amplifier AR5, the non-inverting input end of an operational amplifier AR5 is respectively connected with one end of a resistor R25 and one end of a grounding resistor R26, the other end of the resistor R25 is connected with one end of a secondary coil of a transformer T1, the inverting input end of the operational amplifier AR2 is connected with a reference high-voltage signal, a pin 7 of a chip U1 is respectively connected with one end of a grounding resistor R16 and one end of a resistor R17, the other end of a resistor R15, the other end of a resistor R17, a pin 8 of a chip U1 and one end of a resistor R18 are connected with +5V, a pin 2 of a chip U1 is connected with one end of a grounding resistor RW2, a pin 3 and a pin 4 of the chip U1 are connected with the ground, a pin 5 of the chip U1 is respectively connected with the other end of a resistor R18 and one end of a grounding capacitor C5, a pin 1 and one end of a grounding resistor R5 of the chip U5 are connected with a grid of a field effect transistor Q5, the inverting input end of the operational amplifier AR3 is connected with one end of a resistor R8, the other end of a resistor R7 and one end of a resistor R11 respectively, the other end of the resistor R8 is connected with the output end of the operational amplifier AR2, the non-inverting input end of the operational amplifier AR3 is connected with one end of a resistor R9, the other end of the resistor R9 is connected with one end of a grounding resistor R10 and the cathode of a diode D7 respectively, the output end of the operational amplifier AR3 is connected with the cathode of the diode D8, the anode of a diode D8 is connected with the other end of a resistor R11 and the non-inverting input end of the operational amplifier AR4 respectively, the inverting input end of the operational amplifier AR4 is connected with one end of a resistor R12 and the anode of an electrolytic capacitor C4 respectively, the cathode of an electrolytic capacitor C4 is connected with the ground, and the output end of the operational amplifier AR4 is connected with the other end of a resistor R12, the anode of a diode D7 and one end of a resistor R22 respectively.

When the invention is used, an electrostatic charge processing circuit receives electrostatic charges in a power distribution cabinet detected by an electrostatic sensor, the electrostatic charges are converted into positive or negative voltage through a charge-voltage converter, when a sampling switch KS1 is closed, one path of the electrostatic charges is judged to be positive or negative static through the on-off state of a triode Q1, a relay K1 is driven to not act or act, the other path of the electrostatic charges is converted into positive voltage through an absolute value circuit, the electrostatic charge variation quantity before and after the sampling switch is calculated through an operational amplifier AR6, the positive voltage and the electrostatic charge variation quantity are output to a high-voltage driving circuit, the positive voltage controls a booster circuit consisting of a transformer T2, a resistor R14, a potentiometer RW1, a capacitor C3 and a diode D5 to boost the voltage, the boosted voltage is coupled with the high-voltage difference voltage fed back to compensate the generated high-voltage error, a PWM signal is generated through a voltage-frequency conversion circuit and enters a high-voltage generation circuit, the high-voltage difference voltage is calculated by the operational amplifier AR5, the difference between a reference high-voltage signal and the collected secondary coil of the transformer T1 to output high-voltage, then the voltage is divided by resistors R19 and R20 and converted into low voltage and then is given, the other path of positive voltage is coupled with an electrostatic charge variable quantity signal, when the compensation charge variable quantity is large, the control signal needs to be updated in a sampling period, the problem of real-time strain is difficult, the problem of uncertain signals caused by not adopting a sampling switch is avoided, a voltage frequency conversion circuit consisting of operational amplifiers AR3, AR4, a resistor R7-resistor R12, diodes D7 and D8 and an electrolytic capacitor C4 is used for generating PWM signals to enter a high voltage generating circuit, a boosting circuit consisting of a transformer T1, field effect tubes Q3 and Q4 and diodes D11 and D12 is used for boosting the high voltage, wherein the boosting size is controlled by two paths of PWM signals for driving a grid electrode of the field effect tube of the transformer T1, the high voltage is rectified in the forward direction by the diode D9, filtered by the electrolytic capacitor C7, and then the high voltage is output to a positive high voltage discharge plate 2 through an actuated relay K1 contact K1-2, the positive charge is released, the high voltage is reversely rectified by a diode D10 and filtered by an electrolytic capacitor C8, and the negative high voltage is output to a discharge plate 1 through an acting relay K1 normally closed contact K1-1 to release the negative charge, so that the static electricity in the power distribution cabinet is neutralized according to the positive, negative and large of the static electricity, and the purpose of eliminating the static electricity is achieved.