CN202940630U - High-power charging and discharging machine with reactive compensation function - Google Patents
High-power charging and discharging machine with reactive compensation function Download PDFInfo
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- CN202940630U CN202940630U CN 201220386825 CN201220386825U CN202940630U CN 202940630 U CN202940630 U CN 202940630U CN 201220386825 CN201220386825 CN 201220386825 CN 201220386825 U CN201220386825 U CN 201220386825U CN 202940630 U CN202940630 U CN 202940630U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Abstract
The utility model discloses a high-power charging and discharging machine with a reactive compensation function. The high-power charging and discharging machine comprises an equipment cabinet and an electrical part, wherein the electrical part comprises a DSP (digital signal processor) control circuit, a PWM (pulse-width modulation) controlling and driving circuit, a sampling and AD (analog/digital) converting circuit, a T-shaped LCL (lower control limit) filter circuit, a soft start circuit, a contactor control circuit, a three-phase bridge-type IGBT (insulated gate bipolar translator) module circuit, a mutually staggered type DCDC (direct current to direct current) conversion circuit, and a touch screen man-machine interaction communication and control module. The charging and discharging of the high-power charging and discharging machine can be freely switched according to artificial setting. By utilizing SVPWM (space vector pulse width modulation) space vector control technology and mutually staggered type DCDC conversion control technology, charging and discharging current and charging and discharging power and charging and discharging efficiency under unit volume and weight can be greatly improved, and product cost is reduced.
Description
Technical field
The utility model relates to a kind of charge-discharge machine, relates in particular to a kind of high-power charge-discharge machine with no-power compensation function.
Background technology
Along with the appearance of nearly new battery variety of more than ten years, battery has had great breakthrough at aspect of performance.Due to battery can be arranged on electric power system the optional position, be swift in response be easy to the scheduling, utilize the energy storage technology of battery to become the more and more important subject under discussion of new energy field.High-power charge-discharge machine as the nucleus equipment of battery energy storage battery can with the mutual conversion of electric energy in play conclusive effect, so have various charging/discharging apparatus.
On the domestic market, high-power charging device adopts the phased or full-controlled rectifier mode of three-phase more, and the consequence by these equipment charges is to have brought a large amount of low-order harmonics to electrical network, these harmonic wave severe contaminations power supply grid.And charge and discharge also adopts two cover devices mostly, and this has not only increased material cost and has also made equipment reliability of operation and maintainability significantly reduce.
A kind of high-power portable intelligent recharge and discharge machine (number of patent application: 201010045859.6) introduced a kind of portable high power intelligent charge-discharge machine, keeping under the High-current output state, make the volume and weight of equipment all significantly reduce, reached portable requirement, but because it adopts three-phase phase control rectifier mode, can produce a large amount of low-order harmonics, pollute electrical network.
High-power intelligent quick charger (number of patent application: 200820152048.4) proposed a kind of high-power intelligent quick charger, had advantages of that volume is little, lightweight and power-efficient is higher; Yet this charger is only for high-power, the charger of quick charge.This charger still not solution can bring the problem of low-order harmonic.
For this reason, the utility model provides a kind of high-power charge-discharge machine with no-power compensation function, adopts the bi-directional configuration of parallel network reverse and rectification, integrates charging, discharges, make charging current harmonic wave ratio significantly reduce, simultaneously the electric current and the power that discharge and recharge are significantly improved.
Summary of the invention
The purpose of this utility model is: in order to solve the ubiquitous problem of present charging/discharging apparatus, the utility model provides a kind of high-power charge-discharge machine with no-power compensation function.This equipment has adopted the bi-directional configuration of parallel network reverse and rectification, integrates charging, discharges, and greatly reduces material cost; The SVPWM that this equipment adopts and high-frequency rectification technology, staggered interconnected DCDC converter technique make charging current harmonic wave ratio significantly reduce, and simultaneously the electric current and the power that discharge and recharge are significantly improved.Set by power factor, this equipment not only can move under unity power factor at work, also can absorb or send the idle of leading and hysteresis, has improved net side electric energy quality, effectively prevents power network fluctuation, makes distributed power supply system more safe and reliable.
The technical scheme that the utility model adopts is: a kind of high-power charge-discharge machine with no-power compensation function, comprise rack and electric part, it is characterized in that: described electric part comprises DSP control circuit, PWM control and drive circuit, sampling and A/D convertor circuit, LCL T-shape filter circuit, soft starting circuit, contactor control circuit, three-phase bridge IGBT modular circuit, staggered interconnected DCDC translation circuit, touch-screen man-machine interaction communication and control module; Described sampling and AD conversion circuit are delivered to described DSP control circuit with the signal that detects, and described DSP control circuit is determined the state of battery according to detection signal; Three-phase alternating current is set up busbar voltage by described three-phase bridge IGBT modular circuit and soft starting circuit the initialization power supply is provided; Described PWM controls and drive circuit is accepted described DSP control circuit control; Described PWM controls and the drive circuit output pulse signal drives three-phase bridge IGBT modular circuit by certain sequential and duty ratio conducting and shutoff; Described staggered interconnected DCDC translation circuit is in the situation that discharge, battery is boosted deliver to described three-phase bridge IGBT modular circuit, described three-phase bridge IGBT modular circuit receives PWM controls and drive circuit sends driving and conducting is turn-offed and produced pulsed electrical signal and generates sine wave to the electrical network feedback energy after the filtering of LCL T-shape filter circuit; Described LCL T-shape filter circuit is delivered to described three-phase bridge IGBT modular circuit with the grid side three-phase alternating current through filtering under charge mode, described three-phase bridge IGBT modular circuit receives PWM controls and drive circuit sends driving and conducting is turn-offed and generated the dc voltage and current signal and be transferred to staggered interconnected DCDC translation circuit again; Described staggered interconnected DCDC translation circuit charges to battery through decompression transformation; Described touch-screen man-machine interaction communication and control module receives artificial switching value and discharges and recharges and control command is sent to the DSP control circuit after the parameter setting and makes equipment be operated in the charge or discharge state that the user sets.
High-power charge-discharge machine with no-power compensation function as above is characterized in that: described DSP control circuit comprises that DSP microprocessor, PWM drive the generation circuit, PWM drives lockout circuit, overvoltage crowbar, current foldback circuit, open-phase protection circuit, the straight-through protective circuit of IGBT, fault display circuit, failure reset circuit, key circuit, control switch circuit, power down memory circuit; Described DSP microprocessor receives the start-up command that described touch-screen man-machine interaction communication module sends, send and discharge and recharge control signal, control of soft signal, battery state detection signal, be respectively used to control the access that discharges and recharges, controls soft start resistance and the disconnection of battery; Described overvoltage crowbar detects battery and busbar voltage, in case overvoltage occurs send the overvoltage fault-signal; Described current foldback circuit detects AC three-phase electric current, battery charging and discharging electric current, in case overcurrent occurs send the overcurrent protection fault-signal; Described open-phase protection circuit detects whether phase shortage of three-phase alternating current, in case phase shortage occurs send the open-phase fault signal; Whether the straight-through protective circuit of described IGBT detects IGBT straight-through, in case lead directly to generation send straight-through protection fault-signal; Described PWM drives lockout circuit and receives that any fault-signal namely blocks all pulse outputs, and charge-discharge machine quits work; Described fault display circuit drives corresponding malfunction indicator lamp bright, and fault-signal is sent to described DSP microprocessor after fault occurs, then checks for the user after being forwarded to touch-screen man-machine interaction communication and control circuit by described DSP microprocessor; Described failure reset circuit is after fault produces, and checks that through the user fault removed and carried out the hand-reset operation, makes to discharge and recharge to return to normal holding state; Described key circuit is the same with described touch-screen man-machine interaction communication and control module can control charge-discharge machine normal switch machine and pattern handover operation, but described key circuit only limits to simple switching value control and there is no with described touch-screen man-machine interaction communication and control module on controlling conflict; Described control switch circuit output switching signal is sent to described contactor control circuit and drives its switch motion; Described power down memory circuit gets up the Parameter storage that discharges and recharges that the user sets for discharging and recharging continuation next time, avoids complicated repetitive operation.
High-power charge-discharge machine with no-power compensation function as above is characterized in that: described DSP microprocessor adopts the TMS320F28335 chip.
High-power charge-discharge machine with no-power compensation function as above is characterized in that: described control switch circuit drives five tunnel modes that continue circuit device by five road optical coupled switch and forms; Described fault display circuit is made of eight paths of LEDs light-emitting diodes and liquid crystal display circuit.
High-power charge-discharge machine with no-power compensation function as above is characterized in that: what the voltage sampling in described sampling and A/D convertor circuit adopted is the CLSM-10MA voltage sensor, and what current sampling adopted is the LT108-S7 current sensor; What the AD conversion chip adopted is AD7656 sixteen bit high precision analogue conversion chip.
High-power charge-discharge machine with no-power compensation function as above, it is characterized in that: described PWM controls and drive circuit adopts the M57962L chip, and this chip receives pulse signal control IGBT conducting and the shutoff that the DSP microprocessor after level transforms sends.
High-power charge-discharge machine with no-power compensation function as above is characterized in that: PWM drives lockout circuit and adopts the LM311 chip, when fault occurs, can cut off pwm pulse in the time of switch periods.
The beneficial effects of the utility model are:
The utility model has used full-control type high power device IGBT, and the SVPWM space vector modulation technique has all been adopted in rectification and inversion, and the distortion of electric current has obtained favourable improvement.The multiple heterogeneous DCDC converter technique that the utility model uses on the basis that increases an IGBT module, is doubled charge and discharge power, has reduced largely the cost of material, has greatly weakened the charging and discharging currents ripple of battery simultaneously.The utility model can absorb or send the idle of leading and hysteresis at work, has improved net side electric energy quality, effectively prevents power network fluctuation, makes distributed power supply system more safe and reliable.
Description of drawings
Fig. 1 is the system block diagram of the high-power charge-discharge machine with no-power compensation function of the utility model embodiment.
Fig. 2 is the main electrical structure diagram of the high-power charge-discharge machine with no-power compensation function of the utility model embodiment.
Fig. 3 is that the algorithm of the high-power charge-discharge machine with no-power compensation function of the utility model embodiment is realized block diagram.
Embodiment
In order to make technological means of the present utility model, creation characteristic and effect be easy to be understood, below in conjunction with specific embodiment, be described further.
Symbol description in accompanying drawing: 1-DSP control circuit, 2-PWM control and drive circuit, 3-sampling and A/D convertor circuit, 4-LCL T-shape filter circuit, 5-soft starting circuit, 6-contactor control circuit, 7-three-phase bridge IGBT modular circuit, the staggered interconnected DCDC translation circuit of 8-, 9-touch-screen man-machine interaction communication and control module.
Referring to Fig. 1, high-power charge-discharge machine with no-power compensation function comprises rack and electric part, and electric part comprises DSP control circuit 1, PWM control and drive circuit 2, sampling and A/D convertor circuit 3, LCL T-shape filter circuit 4, soft starting circuit 5, contactor control circuit 6, three-phase bridge IGBT modular circuit 7, staggered interconnected DCDC translation circuit 8, touch-screen man-machine interaction communication and control module 9 these nine large modules.Contactor control circuit 6 is received the switching signal soft start that DSP control circuit 1 sends; DSP control circuit 1 receives discharging and recharging instruction and acting on three-phase bridge IGBT modular circuit 7 by signals collecting with calculating the generation pwm control signal of touch-screen man-machine interaction communication and control module 9, reaches the purpose of carrying out charge and discharge according to customer requirements.
Sampling is delivered to DSP control circuit 1 with A/D convertor circuit 3 with the signal that detects, and DSP control circuit 1 is determined the state of battery according to detection signal; Three-phase alternating current is set up busbar voltage by three-phase bridge IGBT modular circuit 7 and soft starting circuit 5 the initialization power supply is provided.
PWM control and drive circuit 2 are accepted the internal processes of DSP control circuit 1 and are controlled; PWM controls and drive circuit 2 output pulse signals drive three-phase bridge IGBT modular circuit 7 by certain sequential and duty ratio conducting and shutoff.
Staggered interconnected DCDC translation circuit 8 is in the situation that discharge, with the three-phase bridge IGBT modular circuit 7 that battery boosts and delivers to, three-phase bridge IGBT modular circuit 7 receives PWM controls and drive circuit 2 sends driving and conducting is turn-offed and produced pulsed electrical signal and generates sine wave to electrical network bridge-type feedback energy after 4 filtering of LCL T-shape filter circuit.
LCL T-shape filter circuit 4 is delivered to three-phase bridge IGBT modular circuit 7 with the grid side three-phase alternating current through filtering under charge mode, three-phase bridge IGBT modular circuit 7 receives PWM controls and drive circuit 2 sends driving and conducting is turn-offed and generated the dc voltage and current signal and be transferred to staggered interconnected DCDC translation circuit 8 again.
Staggered interconnected DCDC translation circuit 8 charges to battery through decompression transformation; Touch-screen man-machine interaction communication and control module 9 receives artificial switching value and discharges and recharges and control command is sent to DSP control circuit 1 after the parameter setting and makes equipment be operated in the charge or discharge state that the user sets.
DSP control circuit 1 comprises that DSP microprocessor, PWM drive the generation circuit, PWM drives lockout circuit, overvoltage crowbar, current foldback circuit, open-phase protection circuit, the straight-through protective circuit of IGBT, fault display circuit, failure reset circuit, key circuit, control switch circuit, power down memory circuit.
Described DSP microprocessor receives the start-up command that described touch-screen man-machine interaction communication module sends, send and discharge and recharge control signal, control of soft signal, battery state detection signal, be respectively used to control the access that discharges and recharges, controls soft start resistance and the disconnection of battery; Described overvoltage crowbar detects battery and busbar voltage, in case overvoltage occurs send the overvoltage fault-signal; Described current foldback circuit detects AC three-phase electric current, battery charging and discharging electric current, in case overcurrent occurs send the overcurrent protection fault-signal; Described open-phase protection circuit detects whether phase shortage of three-phase alternating current, in case phase shortage occurs send the open-phase fault signal; Whether the straight-through protective circuit of described IGBT detects IGBT straight-through, in case lead directly to generation send straight-through protection fault-signal; Described PWM drives lockout circuit and receives that any fault-signal namely blocks all pulse outputs, and charge-discharge machine quits work; Described fault display circuit drives corresponding malfunction indicator lamp bright, and fault-signal is sent to described DSP microprocessor after fault occurs, then checks for the user after being forwarded to touch-screen man-machine interaction communication and control circuit by described DSP microprocessor; Described failure reset circuit is after fault produces, and checks that through the user fault removed and carried out the hand-reset operation, makes to discharge and recharge to return to normal holding state; Described key circuit is the same with described touch-screen man-machine interaction communication and control module can control charge-discharge machine normal switch machine and pattern handover operation, but described key circuit only limits to simple switching value control and there is no with described touch-screen man-machine interaction communication and control module on controlling conflict; Described control switch circuit output switching signal is sent to described contactor control circuit and drives its switch motion; Described power down memory circuit gets up the Parameter storage that discharges and recharges that the user sets for discharging and recharging continuation next time, avoids complicated repetitive operation.
Described DSP microprocessor adopts the TMS320F28335 chip; Described control switch circuit drives five tunnel modes that continue circuit device by five road optical coupled switch and forms; Described fault display circuit is made of eight paths of LEDs light-emitting diodes and liquid crystal display circuit.
What the voltage sampling in described sampling and A/D convertor circuit adopted is the CLSM-10MA voltage sensor, and what current sampling adopted is the LT108-S7 current sensor; What the AD conversion chip adopted is AD7656 sixteen bit high precision analogue conversion chip.
Described PWM controls and drive circuit adopts the M57962L chip, and this chip receives pulse signal control IGBT conducting and the shutoff that the DSP microprocessor after level transforms sends; PWM drives lockout circuit and adopts the LM311 chip, when fault occurs, can cut off pwm pulse in the time of switch periods.
Referring to Fig. 2, the main electric part with high-power charge-discharge machine of no-power compensation function is made of four parts, and electric energy is realized the two-way flow of energy between battery and electrical network by main electric part.Soft starting circuit 5 comes switching soft start resistance to reach the soft start purpose of circuit by control contactor; LCL T-shape filter circuit 4 produces harmonic wave through rational parameter designing filtering switch motion; Three-phase bridge IGBT modular circuit 7 is actually by three group of 2 unit IGBT module and forms, and is the nucleus module of rectification and inversion; Staggered interconnection type DCDC translation circuit 8 is comprised of two group of 2 unit IGBT module, the multiple heterogeneous control method that adopts on controlling, and its driving is separate.
Referring to Fig. 3, from the flow process of the programmed algorithm of high-power charge-discharge machine with no-power compensation function as seen, the set point of DC bus-bar voltage and value of feedback are carried out PI regulate, obtain the electric current under the d-axis coordinate
, with after the sampling of itself and three-phase alternating current and coordinate transform actual current value
Carry out the PI adjusting and obtain the direct-axis voltage value
, it and decoupling zero amount
, value of feedback
Carry out algebraical sum and calculate truly direct-axis voltage output
, hand over the algorithm of axle side consistent with d-axis, output variable is quadrature-axis voltage
Need to prove, hand over the set point of shaft current by adjustment
Just can regulate idle size, grid side is carried out reactive power compensation, if be set under 0 equipment work and unity power factor,
Be set as on the occasion of meeting send lag behind idle, otherwise send idle in advance.Voltage
Keep the bus direct voltage through sending six road PWM drivings after PWM Algorithm with this, the electric energy during the battery charging on bus obtains target charging current and voltage through two closed loop PI controlled hypotensions, and electric energy flows to battery from electrical network; During discharge, battery side is boosted through two closed-loop controls and is obtained target discharging current and voltage, and electric energy flows to electrical network from battery.
These are only embodiment of the present utility model, be not limited to the utility model, therefore, all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in claim scope of the present utility model.
Claims (7)
1. high-power charge-discharge machine with no-power compensation function, comprise rack and electric part, it is characterized in that: described electric part comprises DSP control circuit, PWM control and drive circuit, sampling and A/D convertor circuit, LCL T-shape filter circuit, soft starting circuit, contactor control circuit, three-phase bridge IGBT modular circuit, staggered interconnected DCDC translation circuit, touch-screen man-machine interaction communication and control module;
Described sampling and A/D convertor circuit are delivered to described DSP control circuit with the signal that detects, and described DSP control circuit is determined the state of battery according to detection signal; Three-phase alternating current is set up busbar voltage by described three-phase bridge IGBT modular circuit and soft starting circuit the initialization power supply is provided;
Described PWM controls and drive circuit is accepted described DSP control circuit control; Described PWM controls and the drive circuit output pulse signal drives three-phase bridge IGBT modular circuit by certain sequential and duty ratio conducting and shutoff;
Described staggered interconnected DCDC translation circuit is in the situation that discharge, battery is boosted deliver to described three-phase bridge IGBT modular circuit, described three-phase bridge IGBT modular circuit receives PWM controls and drive circuit sends driving and conducting is turn-offed and produced pulsed electrical signal and generates sine wave to electrical network bridge-type feedback energy after the filtering of LCL T-shape filter circuit;
Described LCL T-shape filter circuit is delivered to described three-phase bridge IGBT modular circuit with the grid side three-phase alternating current through filtering under charge mode, described three-phase bridge IGBT modular circuit receives PWM controls and drive circuit sends driving and conducting is turn-offed and generated the dc voltage and current signal and be transferred to staggered interconnected DCDC translation circuit again;
Described staggered interconnected DCDC translation circuit charges to battery through decompression transformation; Described touch-screen man-machine interaction communication and control module receives artificial switching value and discharges and recharges and control command is sent to the DSP control circuit after the parameter setting and makes equipment be operated in the state that the user sets.
2. the high-power charge-discharge machine with no-power compensation function according to claim 1 is characterized in that: described DSP control circuit comprise DSP microprocessor, PWM drive produce circuit, PWM drives lockout circuit, overvoltage crowbar, current foldback circuit, open-phase protection circuit, the straight-through protective circuit of IGBT, fault display circuit, failure reset circuit, key circuit, control switch circuit, power down memory circuit; Described DSP microprocessor receives the start-up command that described touch-screen man-machine interaction communication module sends, send and discharge and recharge control signal, control of soft signal, battery state detection signal, be respectively used to control the access that discharges and recharges, controls soft start resistance and the disconnection of battery; Described overvoltage crowbar detects battery and busbar voltage, in case overvoltage occurs send the overvoltage fault-signal; Described current foldback circuit detects AC three-phase electric current, battery charging and discharging electric current, in case overcurrent occurs send the overcurrent protection fault-signal; Described open-phase protection circuit detects whether phase shortage of three-phase alternating current, in case phase shortage occurs send the open-phase fault signal; Whether the straight-through protective circuit of described IGBT detects IGBT straight-through, in case lead directly to generation send straight-through protection fault-signal; Described PWM drives lockout circuit and receives that any fault-signal namely blocks all pulse outputs, and charge-discharge machine quits work; Described fault display circuit drives corresponding malfunction indicator lamp bright, and fault-signal is sent to described DSP microprocessor after fault occurs, then checks for the user after being forwarded to touch-screen man-machine interaction communication and control circuit by described DSP microprocessor; Described failure reset circuit is after fault produces, and checks that through the user fault removed and carried out the hand-reset operation, makes to discharge and recharge to return to normal holding state; Described key circuit is the same with described touch-screen man-machine interaction communication and control module can control charge-discharge machine normal switch machine and pattern handover operation, but described key circuit only limits to simple switching value control and there is no with described touch-screen man-machine interaction communication and control module on controlling conflict; Described control switch circuit output switching signal is sent to described contactor control circuit and drives its switch motion; Described power down memory circuit gets up the Parameter storage that discharges and recharges that the user sets for discharging and recharging continuation next time, avoids complicated repetitive operation.
3. the high-power charge-discharge machine with no-power compensation function according to claim 2, is characterized in that: described DSP microprocessor employing TMS320F28335 chip.
4. the high-power charge-discharge machine with no-power compensation function according to claim 2 is characterized in that: described control switch circuit drives five tunnel modes that continue circuit device by five road optical coupled switch and forms; Described fault display circuit is made of eight paths of LEDs light-emitting diodes and liquid crystal display circuit.
5. the high-power charge-discharge machine with no-power compensation function according to claim 1, it is characterized in that: what the voltage sampling in described sampling and A/D convertor circuit adopted is the CLSM-10MA voltage sensor, and what current sampling adopted is the LT108-S7 current sensor; What the AD conversion chip adopted is AD7656 sixteen bit high precision analogue conversion chip.
6. the high-power charge-discharge machine with no-power compensation function according to claim 2, it is characterized in that: described PWM controls and drive circuit adopts the M57962L chip, and this chip receives pulse signal control IGBT conducting and the shutoff that the DSP microprocessor after level transforms sends.
7. the high-power charge-discharge machine with no-power compensation function according to claim 2 is characterized in that: PWM drives lockout circuit and adopts the LM311 chip, when fault occurs, can cut off pwm pulse in the time of switch periods.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220386825 CN202940630U (en) | 2012-08-07 | 2012-08-07 | High-power charging and discharging machine with reactive compensation function |
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| CN 201220386825 CN202940630U (en) | 2012-08-07 | 2012-08-07 | High-power charging and discharging machine with reactive compensation function |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832682A (en) * | 2012-08-07 | 2012-12-19 | 国网电力科学研究院武汉南瑞有限责任公司 | High-power charging and discharging machine with reactive compensation function |
| CN103560521A (en) * | 2013-11-13 | 2014-02-05 | 国网上海市电力公司 | Controller for dynamic voltage reactive compensator |
| CN105958589A (en) * | 2016-06-07 | 2016-09-21 | 四川阿海珐电气有限公司 | Emergency power supply charger |
| CN107196381A (en) * | 2017-07-20 | 2017-09-22 | 深圳市正弦动力技术有限公司 | A kind of heavy-duty battery charging-discharging controller |
| CN115117987A (en) * | 2022-07-15 | 2022-09-27 | 东方博沃（北京）科技有限公司 | Super capacitor charging circuit, device and control method |
-
2012
- 2012-08-07 CN CN 201220386825 patent/CN202940630U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832682A (en) * | 2012-08-07 | 2012-12-19 | 国网电力科学研究院武汉南瑞有限责任公司 | High-power charging and discharging machine with reactive compensation function |
| CN103560521A (en) * | 2013-11-13 | 2014-02-05 | 国网上海市电力公司 | Controller for dynamic voltage reactive compensator |
| CN105958589A (en) * | 2016-06-07 | 2016-09-21 | 四川阿海珐电气有限公司 | Emergency power supply charger |
| CN105958589B (en) * | 2016-06-07 | 2020-06-23 | 四川阿海珐电气有限公司 | Emergency power supply charger |
| CN107196381A (en) * | 2017-07-20 | 2017-09-22 | 深圳市正弦动力技术有限公司 | A kind of heavy-duty battery charging-discharging controller |
| CN115117987A (en) * | 2022-07-15 | 2022-09-27 | 东方博沃（北京）科技有限公司 | Super capacitor charging circuit, device and control method |
| CN115117987B (en) * | 2022-07-15 | 2022-11-04 | 东方博沃（北京）科技有限公司 | Super capacitor charging circuit, device and control method |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20130515 Termination date: 20180807 |