CN205407374U - A high -efficient direct current module of charging for electric automobile fills electric pile - Google Patents
A high -efficient direct current module of charging for electric automobile fills electric pile Download PDFInfo
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- CN205407374U CN205407374U CN201620172209.0U CN201620172209U CN205407374U CN 205407374 U CN205407374 U CN 205407374U CN 201620172209 U CN201620172209 U CN 201620172209U CN 205407374 U CN205407374 U CN 205407374U
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Abstract
The utility model discloses a high -efficient direct current module of charging for electric automobile fills electric pile, including preceding stage AC level DC behind the DC subtotal the DC part, preceding stage AC DC part and back level DC the DC part realizes the communication through the CAN module, preceding stage AC the DC part is including EMI module, rectification topological structure, drive circuit, preceding stage control circuit, voltage and current sampling circuit, RC snubber circuit and fan, back level DC the DC part is including inverter circuit, MOS pipe drive circuit, back level control circuit, sampling circuit, isolation transformer, rectifier circuit and output EMC module. The module of should charging reduces the loss that a large amount of harmonic of electric automobile charging process pollutes and opening and closing process brings, has small, efficient, characteristics such as the stable voltage and current precision high, ripple coefficient is little, easy operation, maintenance convenience.
Description
Technical field
The utility model belongs to charging electric vehicle technical field, particularly to a kind of efficient direct current charging module for electric automobile charging pile.
Background technology
Along with the fast development of ev industry, user is more and more higher to the requirement of electric automobile charging pile performance, and electric automobile charging pile is built at present small scale, quantity are few, and electric automobile charging pile correlation technique major part is also in the primary stage of actual application.
The development trend of electric automobile is the most irresistible; large-scale charging pile (station) is built and will certainly be impacted local distribution; diversity due to charging electric vehicle form; and it is in operation and can produce substantial amounts of harmonic pollution; the equipment such as transformer, relay protection all can be impacted by these, even results in malfunction or the tripping of protective relaying device.Therefore, research electric automobile intelligent charging stake (station) is an important process promoting electric vehicle industrialization development, is also significant at the aspect such as technology, economic and social benefit.
Efficiently, high power density and high performance electric automobile battery charger are the technical goals that domestic and international manufacturer is pursued.In order to obtain efficient, high power density and high performance index, electric automobile battery charger needs to be operated under higher switching frequency, but higher switching frequency brings bigger switching loss.Therefore, the loss that the reduction switching process that take appropriate measures is brought.
Utility model content
The technical problems to be solved in the utility model is: the loss that the reduction substantial amounts of harmonic pollution of charging electric vehicle process and switching process are brought.
For solving above-mentioned technical problem, the technical solution adopted in the utility model is: a kind of efficient direct current charging module for electric automobile charging pile, including prime AC-DC part and rear class DC-DC part, described prime AC-DC part realizes communication with rear class DC-DC part by CAN module；Described prime AC-DC part includes EMI module, rectification topology, drive circuit, prime control circuit, voltage x current sample circuit, RC absorbing circuit and fan；Described rear class DC-DC part includes inverter circuit, metal-oxide-semiconductor drive circuit, rear class control circuit, sample circuit, isolating transformer, rectification circuit and output EMC module.
Preferably, described rectification topology uses three-phase PFC rectification circuit or VIENNA rectification circuit.
Preferably, described VIENNA rectification circuit is three level rectifying circuit, is made up of 3 boost inductances, 6 commutation diodes, 3 groups of two-way power switch pipes, two electrochemical capacitors, and often group two-way power switch pipe is made up of 4 commutation diodes and 1 switching tube.
Preferably, described switching tube selects low-voltage high-frequency rate switching tube.
Preferably, described rear class control circuit uses LLC resonant converter to carry out VFC.
Operation principle of the present utility model: the prime AC-DC part for the efficient direct current charging module (hereinafter referred to as charging module) of electric automobile charging pile uses three-phase PFC rectification or VIENNA rectification topology, input three-phase voltage is transformed to high voltage dc bus voltage, and ensures that input current has higher waveform quality and higher power factor.Rear class DC-DC part uses LLC resonance to control technology, and the direct current of VIENNA rectification circuit exports the DC-DC conversion carrying out high-energy-density, high frequency with the form of resonant type soft-switch, in order to realize meeting the stable direct current output of various straight-flow system charging requirement.
Charging module circuit uses AC-DC-DC topological form, dc bus side bigger electric capacity in parallel, relieves the coupling between front stage, and the impact of prime and rear class conversion is less.Prime uses VIENNA rectification circuit, input three-phase voltage is transformed to positive and negative 400V DC bus-bar voltage, and ensures that input current has higher waveform quality and higher power factor.Rear class uses LLC resonant converter, DC voltage is converted to the voltage and current value needed for battery charging, and ensures higher Current Voltage precision and relatively low Current Voltage ripple.All switching devices use MOSFET, have higher operating characteristic, thus realize high frequency, the efficient and operation of high power density.
The beneficial effects of the utility model: input three-phase voltage is transformed to high voltage dc bus voltage by the prime AC-DC part of this charging module, it is ensured that input current has higher waveform quality and higher power factor.This circuit uses low-voltage high-frequency switching device can obtain excellent input current waveform quality, rear class DC-DC part uses LLC resonance (frequency modulation(PFM)) to control technology, the direct current of prime AC-DC partial rectification circuit is exported and carries out high-energy-density with the form of resonant type soft-switch, the DC-DC conversion of high frequency, in order to realize meeting the stable direct current output of various straight-flow system charging requirement, LLC resonant converter uses frequency conversion (PFM) to control simultaneously, energy transmission can be adjusted by changing switching frequency, ensure higher Current Voltage precision and relatively low Current Voltage ripple, it is suitable for the requirement of Electric Transit charging post system.
This charging module has good output voltage ability of regulation and control, has the features such as volume is little, efficiency is high, voltage stabilization and current stabilization precision high, ripple factor is little, simple to operate, easy to maintenance.Can be as electric automobile charging pile nucleus module, it is possible to form electric operating power supply system with intelligent monitoring and battery.
Accompanying drawing explanation
Fig. 1 is the overall equivalent block diagram of the present embodiment；
Fig. 2 is the VIENNA rectification circuit equivalent schematic diagram of the present embodiment prime AC-DC part；
Fig. 3 is the LLC resonant converter equivalent schematic diagram of the present embodiment rear class DC-DC part.
Detailed description of the invention
By combination accompanying drawing described further below it will be further appreciated that feature of the present utility model and advantage.The embodiment provided is only the explanation to the utility model method, and limits remaining content that the utility model discloses never in any form.
The present embodiment adopts the following technical scheme that a kind of efficient direct current charging module for electric automobile charging pile, and including prime AC-DC part and rear class DC-DC part, described prime AC-DC part realizes communication with rear class DC-DC part by CAN module；Described prime AC-DC part includes EMI module, rectification topology, drive circuit, prime control circuit, voltage x current sample circuit, RC absorbing circuit and fan；Described rear class DC-DC part includes inverter circuit, metal-oxide-semiconductor drive circuit, rear class control circuit, sample circuit, isolating transformer, rectification circuit and output EMC module.
Described rectification topology uses three-phase PFC rectification circuit or VIENNA rectification circuit.
Described VIENNA rectification circuit is three level rectifying circuit, is made up of 3 boost inductances, 6 commutation diodes, 3 groups of two-way power switch pipes, two electrochemical capacitors, and often group two-way power switch pipe is made up of 4 commutation diodes and 1 switching tube.
Described switching tube selects low-voltage high-frequency rate switching tube.
Described rear class control circuit uses LLC resonant converter to carry out VFC.
Below in conjunction with accompanying drawing, the present embodiment is further illustrated, as shown in Figure 1, the present embodiment workflow is as follows: three phase mains filters difference mode signal and common-mode signal from input through EMI module, by VIENNA rectification circuit, exchange is converted into direct current, prime output is fed back to prime control circuit by voltage x current sample circuit, control circuit regulation drive circuit realizes the control to VIENNA rectification circuit, form a PI loop, rear class also has an identical PI loop, and front stage realizes communication by CAN module；Prime output realizes the conversion of DC-AC through inverter circuit, is reached the purpose of before and after's isolation effect by isolating transformer, then realizes the conversion of AC-DC by rectification circuit, realizes the elimination disturbing output finally by output EMC module.
As in figure 2 it is shown, prime VIENNA rectification circuit circuit is made up of 3 boost inductances, 3 groups of two-way power switch pipes, 6 commutation diodes and two electrochemical capacitors.Often group two-way power switch pipe is made up of 4 commutation diodes and 1 switching tube.By controlling conducting and the shutoff of switching tube, regulation input current and output voltage.When switching tube turns on, rectification circuit input end mouth is connected with DC capacitor midpoint；When switching tube disconnects, rectification circuit input end mouth connection status is relevant with the sense of current, if electric current is more than 0, input port is connected with direct current output capacitance positive pole, if electric current is less than 0, input port is connected with direct current output capacitance negative pole.By controlling the state of switching tube, thus realize the controlled rectification to three-phase alternating voltage.
VIENNA rectification circuit is substantially three level rectifying circuit, and the voltage stress that switching device bears is the half of output DC voltage, can be selected for the switching device of low pressure height switching frequency, thus reduces circuit loss, improves system power-density.There is not straight-through risk in this rectification circuit, reliability is high.
As shown in Figure 3, rear class LLC resonant converter is formed half-bridge structure by two main switches Q1, Q2, drive signal be dutycycle be that the complement mode work of 50% is (for preventing upper and lower bridge arm straight-through, signal is with certain Dead Time Tdead), Q1, Q2 complementation turns on, and produces the square-wave voltage Vmid input as resonant tank.Resonant capacitance Cr, resonant inductance Lr and static exciter inductance Lm constitute the resonant network of LLC, and wherein resonant capacitance Cr also plays the effect of capacitance.At transformer secondary, diode D3, D4 composition with centre tapped full-wave rectifying circuit, output voltage after output capacitance Cout filters for loading.
Charging module rear class uses LLC resonance (frequency modulation(PFM)) to control technology, the direct current of VIENNA rectification circuit is exported the DC-DC conversion carrying out high-energy-density, high frequency with the form of resonant type soft-switch, in order to realize meeting the stable direct current output of various straight-flow system charging requirement.LLC resonant converter uses frequency conversion (PFM) to control simultaneously, and energy transmission can be adjusted by changing switching frequency, is suitable for the requirement of Electric Transit charging post system.
In sum, the present embodiment prime AC-DC part uses VIENNA rectification topology, rear class DC-DC part uses LLC resonance (frequency modulation(PFM)) to control technology, and the direct current of VIENNA rectification circuit exports the DC-DC conversion carrying out high-energy-density, high frequency with the form of resonant type soft-switch.This charging module has the features such as efficiency is high, voltage stabilization and current stabilization precision is high, ripple factor is little, simple to operate, easy to maintenance.This product can be as electric automobile charging pile nucleus module, it is possible to form electric operating power supply system with intelligent monitoring and battery.
Claims (5)
1. the efficient direct current charging module for electric automobile charging pile, it is characterised in that: include prime AC-DC
Part and rear class DC-DC part, described prime AC-DC part passes through CAN with rear class DC-DC part
Module realizes communication；Described prime AC-DC part includes EMI module, rectification topology, driving electricity
Road, prime control circuit, voltage x current sample circuit, RC absorbing circuit and fan；Described rear class DC-DC
Part include inverter circuit, metal-oxide-semiconductor drive circuit, rear class control circuit, sample circuit, isolating transformer,
Rectification circuit and output EMC module.
Efficient direct current charging module for electric automobile charging pile the most according to claim 1, its feature exists
In: described rectification topology uses three-phase PFC rectification circuit or VIENNA rectification circuit.
Efficient direct current charging module for electric automobile charging pile the most according to claim 2, its feature exists
In: described VIENNA rectification circuit is three level rectifying circuit, by 3 boost inductances, 6 rectifications two
Pole pipe, 3 groups of two-way power switch pipes, two electrochemical capacitor compositions, often group two-way power switch pipe is whole by 4
Stream diode and 1 switching tube composition.
Efficient direct current charging module for electric automobile charging pile the most according to claim 3, its feature exists
In: described switching tube selects low-voltage high-frequency rate switching tube.
Efficient direct current charging module for electric automobile charging pile the most according to claim 1, its feature exists
In: described rear class control circuit uses LLC resonant converter to carry out VFC.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620172209.0U CN205407374U (en) | 2016-03-07 | 2016-03-07 | A high -efficient direct current module of charging for electric automobile fills electric pile |
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| CN201620172209.0U CN205407374U (en) | 2016-03-07 | 2016-03-07 | A high -efficient direct current module of charging for electric automobile fills electric pile |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106786850A (en) * | 2016-11-30 | 2017-05-31 | 深圳市盛弘电气股份有限公司 | The charging system and method for a kind of compatible alternating current-direct current input |
| CN107134839A (en) * | 2017-05-11 | 2017-09-05 | 山东鲁能智能技术有限公司 | A kind of high power density charging module and method based on all-digitized demodulator |
| TWI618343B (en) * | 2016-11-22 | 2018-03-11 | 國立高雄應用科技大學 | Three-port dc-ac power converter and control method thereof |
| FR3060230A1 (en) * | 2016-12-14 | 2018-06-15 | Renault S.A.S | METHOD FOR CONTROLLING AN ON-BOARD CHARGING DEVICE ON AN ELECTRIC OR HYBRID VEHICLE |
| CN108233502A (en) * | 2018-03-29 | 2018-06-29 | 中国矿业大学(北京) | A kind of three-phase electricity charging circuit configuration |
| CN109624745A (en) * | 2019-01-02 | 2019-04-16 | 南京金龙客车制造有限公司 | A kind of high-efficiency high-power on-board charging system |
| KR20190040326A (en) * | 2016-09-27 | 2019-04-17 | 르노 에스.아.에스. | Method for controlling a three-phase rectifier for a charging device mounted on an electric or hybrid vehicle |
| CN109787329A (en) * | 2019-03-26 | 2019-05-21 | 西安电子科技大学芜湖研究院 | A kind of electric vehicle rapid charging new mechanism |
| CN113135109A (en) * | 2020-07-31 | 2021-07-20 | 清华大学 | Topological structure of high-power charging device of electric automobile |
| CN114337199A (en) * | 2020-09-30 | 2022-04-12 | 重庆美的制冷设备有限公司 | Drive control circuit, drive control method, circuit board and air conditioner |
| CN116207811A (en) * | 2022-12-15 | 2023-06-02 | 苏州博沃创新能源科技有限公司 | 7kW bidirectional electric automobile off-vehicle direct current charging module |
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| KR20190040326A (en) * | 2016-09-27 | 2019-04-17 | 르노 에스.아.에스. | Method for controlling a three-phase rectifier for a charging device mounted on an electric or hybrid vehicle |
| KR102180900B1 (en) | 2016-09-27 | 2020-11-20 | 르노 에스.아.에스. | A method of controlling a three-phase rectifier for a charging device mounted on an electric or hybrid vehicle |
| TWI618343B (en) * | 2016-11-22 | 2018-03-11 | 國立高雄應用科技大學 | Three-port dc-ac power converter and control method thereof |
| CN106786850A (en) * | 2016-11-30 | 2017-05-31 | 深圳市盛弘电气股份有限公司 | The charging system and method for a kind of compatible alternating current-direct current input |
| US11114883B2 (en) | 2016-12-14 | 2021-09-07 | Renault S.A.S. | Method for controlling a charging device on board an electric or hybrid vehicle |
| KR102226793B1 (en) | 2016-12-14 | 2021-03-12 | 르노 에스.아.에스. | How to control the on-board charging device of an electric or hybrid vehicle |
| JP7051852B2 (en) | 2016-12-14 | 2022-04-11 | ルノー エス．ア．エス． | Methods for controlling charging devices onboard electric or hybrid vehicles |
| WO2018109103A1 (en) * | 2016-12-14 | 2018-06-21 | Renault Sas | Method for controlling a charging device on board an electric or hybrid vehicle |
| FR3060230A1 (en) * | 2016-12-14 | 2018-06-15 | Renault S.A.S | METHOD FOR CONTROLLING AN ON-BOARD CHARGING DEVICE ON AN ELECTRIC OR HYBRID VEHICLE |
| KR20190085530A (en) * | 2016-12-14 | 2019-07-18 | 르노 에스.아.에스. | Method for controlling an onboard charging device of an electric or hybrid vehicle |
| CN110139775A (en) * | 2016-12-14 | 2019-08-16 | 雷诺股份公司 | Method for controlling charging equipment vehicle-mounted on electronic or hybrid vehicle |
| JP2020502967A (en) * | 2016-12-14 | 2020-01-23 | ルノー エス．ア．エス．Ｒｅｎａｕｌｔ Ｓ．Ａ．Ｓ． | Method for controlling a charging device mounted on an electric or hybrid vehicle |
| CN107134839A (en) * | 2017-05-11 | 2017-09-05 | 山东鲁能智能技术有限公司 | A kind of high power density charging module and method based on all-digitized demodulator |
| CN108233502A (en) * | 2018-03-29 | 2018-06-29 | 中国矿业大学(北京) | A kind of three-phase electricity charging circuit configuration |
| CN109624745A (en) * | 2019-01-02 | 2019-04-16 | 南京金龙客车制造有限公司 | A kind of high-efficiency high-power on-board charging system |
| CN109787329A (en) * | 2019-03-26 | 2019-05-21 | 西安电子科技大学芜湖研究院 | A kind of electric vehicle rapid charging new mechanism |
| CN113135109A (en) * | 2020-07-31 | 2021-07-20 | 清华大学 | Topological structure of high-power charging device of electric automobile |
| CN113135109B (en) * | 2020-07-31 | 2022-10-25 | 清华大学 | Topological structure of high-power charging device of electric automobile |
| CN114337199A (en) * | 2020-09-30 | 2022-04-12 | 重庆美的制冷设备有限公司 | Drive control circuit, drive control method, circuit board and air conditioner |
| CN114337199B (en) * | 2020-09-30 | 2023-11-21 | 重庆美的制冷设备有限公司 | Drive control circuit, drive control method, circuit board and air conditioner |
| CN116207811A (en) * | 2022-12-15 | 2023-06-02 | 苏州博沃创新能源科技有限公司 | 7kW bidirectional electric automobile off-vehicle direct current charging module |
| CN116207811B (en) * | 2022-12-15 | 2024-04-05 | 苏州博沃创新能源科技有限公司 | 7kW bidirectional electric automobile off-vehicle direct current charging module |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160727 |