CN107017692A - A kind of high power DC charger - Google Patents
A kind of high power DC charger Download PDFInfo
- Publication number
- CN107017692A CN107017692A CN201710408791.5A CN201710408791A CN107017692A CN 107017692 A CN107017692 A CN 107017692A CN 201710408791 A CN201710408791 A CN 201710408791A CN 107017692 A CN107017692 A CN 107017692A
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
- H02J7/04—Regulation of charging current or voltage
- H02J7/06—Regulation of charging current or voltage using discharge tubes or semiconductor devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
- H02M1/4225—Arrangements for improving power factor of AC input using a non-isolated boost converter
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/3353—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having at least two simultaneously operating switches on the input side, e.g. "double forward" or "double (switched) flyback" converter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2210/00—Converter types
- B60L2210/10—DC to DC converters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/547—Voltage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/54—Drive Train control parameters related to batteries
- B60L2240/549—Current
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The present invention is a kind of high power DC charger.Include breaker, contactor, PFC rectification circuits, some charge circuits, off-board DC charging machine controller, three-phase and four-line AC-input voltage is connected by breaker with contactor, the output of contactor is connected with PFC rectification circuit input ends, PFC rectification circuit output ends are divided into multichannel, it is connected respectively with some charge circuits, the output end of some charge circuits exports direct current to electric automobile respectively, wherein, the connection of contactor, PFC rectification circuits and every charge circuit with off-board DC charging machine controller.Independently connect and be controlled by it.The present invention is simple in construction, realizes the design of a machine multiple gun, improves the utilization rate of DC charging motor, and key switch element of the invention uses insulated gate bipolar transistor IGBT or SIC power models；Charger reliability is improved, charger cost is reduced.
Description
Technical field
The present invention is a kind of high power DC charger, more particularly to a kind of big the present invention relates to charging technique field
The design of power DC charger.
Background technology
Domestic DC charging motor design is entered under AC three-phase four-wire system 380V input condition at present
Row Secondary Design, its core power converting member is the DC charging module of three-level topology structure, and radiating mode uses mould
Air-cooled or liquid that the active air cooling radiating+charger that block is equipped with is equipped with is cold to radiate, and its shortcoming is quite obvious：
1) DC charging motor use environment is quite severe, and generally operator does not consider the actual state of equipment, directly
Connect and equipment be arranged under open-air atmosphere, temperature, dust, humidity, greasy dirt, go mouldy, all kinds of factors of salt fog, chemical substance etc. it is tight
Heavy damages the service life of DC charging module and the electronic component of inside modules and printed circuit board (PCB)；Standard
Device IP degree of protection is only IP54, and steam, greasy dirt, salt fog, chemicals can not be blocked under the mode of operation of active air cooling
The entrance of matter, so as to cause the irreversible physics of DC charging module, chemical damage.
2) the higher active air cooling formula DC charging inside modules of general 15KW power densities have used 2 small direct current wind
Machine (size-constrained system), the radiating of module places one's entire reliance upon DC fan；DC charging motor again will by way of air blast cooling
The air quantity of the small DC fan of inside modules is suctioned out, and any one fan failure can all cause DC charging module working environment more to be disliked
It is bad, accelerating module aging, reduction of service life.
3) the higher DC charging module of 15KW power densities is used as charging acc power Switching Core part, although side
Just change, but because Module Price is expensive, DC generator manufacturer will not reserve enough margin of powers in design, cause direct current
The reliability of charging module is substantially reduced.
The content of the invention
A kind of high power DC charger is provided it is an object of the invention to consider above mentioned problem.The present invention is on the whole
Design DC charging motor；Each functions of modules is clear, simple in construction；The radiating of the heater members of complete machine is dissipated by large volume radiator
Heat；DC charging motor is needed only to radiator heat-dissipation；The multiple gun design of the present invention improves the utilization of DC charging motor
Rate；The key switch element of the present invention uses insulated gate bipolar transistor (IGBT) or SIC power models；Improving charger can
By property, charger cost is reduced.
The technical scheme is that：The high power DC charger of the present invention, includes breaker, contactor, PFC whole
Current circuit, some charge circuits, off-board DC charging machine controller, three-phase and four-line AC-input voltage is by breaker with connecing
Tentaculum is connected, and the output of contactor is connected with PFC rectification circuit input ends, and PFC rectification circuit output ends are divided into multichannel, respectively with
Some charge circuit connections, the output end of some charge circuits exports direct current to electric automobile respectively, wherein, contactor, PFC
The connection of rectification circuit and every charge circuit with off-board DC charging machine controller.Independently connect and be controlled by it.
Preferably, above-mentioned PFC rectification circuits include EMI filter circuit, rectification circuit, pfc circuit, PFC PWM isolation
The input of drive control circuit, pfc controller, wherein EMI filter circuit and the output end of contactor are connected, rectification circuit
The output end connection of input and EMI filter circuit, the output end of rectification circuit and the input of pfc circuit are connected, pfc circuit
Output end output direct current supply electricity to multichannel DC/DC power conversion inputs, pfc circuit passes through PFC PWM isolation drives control electricity
Road is connected with pfc controller.
Preferably, the rectification circuit of above-mentioned PFC rectification circuits includes what is be made up of diode D1, D2, D3, D4, D5, D6
Bridge rectifier；Above-mentioned pfc circuit includes switching device Q5, electric capacity C1, C2, diode D7, current transformer T1, inductance
L1, wherein Q5 gate pole and PFC PWM isolation drives control circuit are connected, Q5 colelctor electrode be connected with diode D7 anode and
It is connected with inductance L1 one end, Q5 emitter stage is connected with current transformer T1 primary coil, current transformer T1 secondary
Coil and PFC PWM isolation drives control circuit be connecteds, one end company of current transformer T1 primary coil also with electric capacity C1, C2
Connect, the electric capacity C1 other end is connected with the inductance L1 other end, the C2 other end is connected with diode D7 negative electrode, PFC controls
Device is connected with PFC PWM isolation drives control circuit.
Preferably, diode D1, D2, D3, D4, D5, D6 in above-mentioned rectification circuit are power devices；In pfc circuit
Diode D7 and switching device Q5 is power device；Above-mentioned power device is installed on a heat sink, and radiator is air-cooled or liquid is cold
Radiator；Pfc controller and PFC PWM isolated drive circuits are encapsulated in heat conduction shell, pfc controller and PFC PWM isolation
Drive circuit isolates setting with radiator.
Preferably, each above-mentioned charge circuit includes DC/DC power conversions, direct current output and attachment means, above-mentioned DC/DC
Power conversion includes LLC full bridge inverters, high frequency transformer, high-frequency rectification circuit, reverse-filling DC output circuit, DC/
DC PWM isolation drives control circuit and DC/DC controllers, the wherein input of LLC full bridge inverters and PFC rectification circuits
Output end connection, the primary coil of the output ends of LLC full bridge inverters and high frequency transformer connects, time of high frequency transformer
The input of level coil and high-frequency rectification circuit is connected, and the output end of high-frequency rectification circuit is defeated with reverse-filling DC output circuit
Enter end connection, the output end of reverse-filling DC output circuit is connected with electric car charging inlet, and DC/DC controllers pass through DC/DC
PWM isolation drives control circuit provides sampled voltage and electric current and gives DC/DC controllers, DC/DC controllers according to sampled voltage and
Electric current, sends PWM driving instruction and controls circuit to DC/DC PWM isolation drives, circuit is controlled by DC/DC PWM isolation drives
The switching tube of LLC full bridge inverters is driven to modulate the output voltage and electric current of high-frequency rectification circuit, through reverse-filling direct current output
Circuit protection, exports DC voltage.
Preferably, the LLC full bridge inverters of above-mentioned DC/DC power conversions include four switching devices and its periphery electricity
Road, four switching devices are Q1, Q2, Q3, Q4 respectively, Q1 gate pole, Q2 gate pole, Q3 gate pole, Q4 gate pole all with DC/DC
The control circuit connection of PWM isolation drives, Q1 emitter stage, Q2 colelctor electrode, Q3 emitter stage, Q4 colelctor electrode all become with high frequency
Depressor T2 primary coil connection, Q1 colelctor electrode and Q3 colelctor electrode are connected with the anode with alminium electrolytic condenser C2, Q2 hair
Negative terminal of emitter-base bandgap grading and the Q4 emitter stage all with alminium electrolytic condenser C2 is connected, high-frequency rectification circuit include by diode D9, D10,
The bridge rectifier of D11, D12 composition；Reverse-filling DC output circuit includes diode D8, diode D8 anode with by
The output end anode connection of the bridge rectifier of diode D9, D10, D11, D12 composition, diode D8 negative electrode and automobile
Input is connected.
Preferably, four switching devices Q1, Q2, Q3, Q4 of the LLC full bridge inverters of above-mentioned DC/DC power conversions are
Power device；Diode D9, D10, D11, D12 in high-frequency rectification circuit are power device；In reverse-filling DC output circuit
Diode D8 be power device；Above-mentioned power device is installed on a heat sink；Radiator is air-cooled and/or liquid cooling heat radiator；
DC/DC controllers and DC/DC PWM isolated drive circuits are encapsulated in heat conduction shell, DC/DC controllers and DC/DC PWM isolation
Drive circuit isolates setting with radiator.
Preferably, switching device Q1, Q2, Q3, Q4, Q5 in above-mentioned DC charging motor use insulated gate bipolar transistor
IGBT or SIC power models.
The present invention compared with prior art, has the following technical effect that：
1) the overall design modularization of DC charging motor, structuring；The design of whole DC charging motor be divided into exchange input,
PFC rectifications, power conversion, direct current output, attachment means and off-board DC charging machine controller composition；Wherein, PFC rectifications and
Power conversion has a respective controller, and with off-board DC charging machine controller real-time communication, more favourable ensure that be whole
Individual charging process it is reliable and safe；Exchange input and PFC rectifications are input control and the process part of charger, while after being
The common portion of the power conversion output of level multiple-channel output；The power of PFC rectifications, which expands, can pass through the in parallel or whole of switching tube
Individual PFC rectifications parallel connection is realized；
2) main circuit power heat-generating electronic elements (including the AC rectification diode, the switch of PFC rectification circuits of complete machine
Pipe, high-speed rectifier pipe, switching tube, the high-speed rectifier pipe of LLC full-bridge resonance circuits) it is arranged on special large volume radiator
Radiating；Air-cooled or liquid that radiator is equipped with by charger is cold to radiate；
3) weak control circuit of the present invention is encapsulated in the housing with good heat radiating, heat-insulated with power heater element；Carry
The IP degree of protection of high charge machine, improves the service life under system adverse circumstances.
4) complete machine is designed using multiple-channel output.On the one hand the service efficiency of charger is improved；On the other hand power point is passed through
Expand (in parallel by the LLC full-bridges resonance circuit in parallel or whole of switching tube) with (system distribution) or power and meet future 3
Demand of~5 years electric automobiles to DC charging acc power increase-volume；
5) key switch element substitutes Traditional DC using insulated gate bipolar transistor (IGBT) or SIC power models and filled
The FET (MOSFET) used in power supply module；Simplify power circuit design, improve charger reliability, reduction charging
Machine cost.
The present invention is a kind of ingenious in design, function admirable, convenient and practical high power DC charger.
Brief description of the drawings
Fig. 1 is high power DC charger theory diagram of the invention；
Fig. 2 is the theory diagram of PFC rectification circuits of the present invention；
Fig. 3 is the schematic diagram of PFC rectification circuits of the present invention；
Fig. 4 is the theory diagram of DC/DC power conversions of the present invention；
Fig. 5 is the circuit theory diagrams of the DC/DC power conversions of the present invention.
Embodiment
Embodiment：
The present invention structural representation as Figure 1-5, high power DC charger of the invention, include breaker,
Contactor, PFC rectification circuits, some charge circuits, off-board DC charging machine controller, three-phase and four-line AC-input voltage lead to
Cross breaker to be connected with contactor, the output of contactor is connected with PFC rectification circuit input ends, PFC rectification circuit output ends point
Into multichannel, it is connected respectively with some charge circuits, the output ends of some charge circuits exports direct current to electric automobile respectively, its
In, the connection of contactor, PFC rectification circuits and every charge circuit with off-board DC charging machine controller.It is independent to receive
It is controlled.
In the present embodiment, above-mentioned PFC rectification circuits include EMI filter circuit, rectification circuit, pfc circuit, PFC PWM
The output end connection of isolation drive control circuit, pfc controller, the wherein input of EMI filter circuit and contactor, rectified current
The input on road and the output end of EMI filter circuit are connected, and the output end of rectification circuit and the input of pfc circuit are connected, PFC
The output end output direct current of circuit supplies electricity to multichannel DC/DC power conversion inputs, and pfc circuit passes through PFC PWM isolation drive controls
Circuit processed is connected with pfc controller.
In the present embodiment, the rectification circuit of above-mentioned PFC rectification circuits includes by diode D1, D2, D3, D4, D5, D6 group
Into bridge rectifier；Above-mentioned pfc circuit includes switching device Q5, electric capacity C1, C2, diode D7, current transformer T1,
Inductance L1, wherein Q5 gate pole are connected with PFC PWM isolation drives control circuit, and Q5 colelctor electrode connects with diode D7 anode
Connect and be connected with inductance L1 one end, Q5 emitter stage is connected with current transformer T1 primary coil, current transformer T1's
Secondary coil and PFC PWM isolation drives control circuit are connected, current transformer T1 primary coil also with electric capacity C1, C2 one
End connection, the electric capacity C1 other end is connected with the inductance L1 other end, and the C2 other end is connected with diode D7 negative electrode, PFC
Controller is connected with PFC PWM isolation drives control circuit.
In the present embodiment, diode D1, D2, D3, D4, D5, D6 in above-mentioned rectification circuit are power devices；Pfc circuit
In diode D7 and switching device Q5 be power device；Above-mentioned power device is installed on a heat sink, radiator be it is air-cooled or
Liquid cooling heat radiator；Pfc controller and PFC PWM isolated drive circuits are encapsulated in heat conduction shell, pfc controller and PFC PWM
Isolated drive circuit isolates setting with radiator.
In the present embodiment, each above-mentioned charge circuit includes DC/DC power conversions, direct current output and attachment means, above-mentioned
DC/DC power conversions include LLC full bridge inverters, high frequency transformer, high-frequency rectification circuit, reverse-filling direct current output electricity
Road, DC/DC PWM isolation drives control circuit and DC/DC controllers, the wherein input of LLC full bridge inverters and PFC are whole
The output end connection of current circuit, the output end of LLC full bridge inverters and the primary coil of high frequency transformer are connected, high frequency transformation
The secondary coil of device and the input of high-frequency rectification circuit are connected, output end and the reverse-filling direct current output electricity of high-frequency rectification circuit
The input connection on road, the output end of reverse-filling DC output circuit is connected with electric car charging inlet, and DC/DC controllers pass through
DC/DC PWM isolation drives control circuit provides sampled voltage and electric current gives DC/DC controllers, and DC/DC controllers are according to sampling
Voltage and electric current, send PWM driving instruction and control circuit to DC/DC PWM isolation drives, pass through DC/DC PWM isolation drive controls
The switching tube of circuit drives LLC full bridge inverters processed modulates the output voltage and electric current of high-frequency rectification circuit, straight through reverse-filling
Output circuit protection is flowed, DC voltage is exported.
In the present embodiment, the LLC full bridge inverters of above-mentioned DC/DC power conversions include four switching devices and its periphery
Circuit, four switching devices are Q1, Q2, Q3, Q4 respectively, Q1 gate pole, Q2 gate pole, Q3 gate pole, Q4 gate pole all with DC/
DC PWM isolation drives control circuit connection, Q1 emitter stage, Q2 colelctor electrode, Q3 emitter stage, Q4 colelctor electrode all with height
Frequency power transformer T2 primary coil connection, Q1 colelctor electrode and Q3 colelctor electrode are connected with the anode with alminium electrolytic condenser C2, Q2
Emitter stage and Q4 negative terminal of the emitter stage all with alminium electrolytic condenser C2 be connected, high-frequency rectification circuit include by diode D9,
The bridge rectifier of D10, D11, D12 composition；Reverse-filling DC output circuit includes diode D8, diode D8 anode
It is connected with by the output end anode of diode D9, D10, D11, D12 bridge rectifier constituted, diode D8 negative electrode and vapour
The input connection of car.In the present embodiment, four switching device Q1 of the LLC full bridge inverters of above-mentioned DC/DC power conversions,
Q2, Q3, Q4 are power device；Diode D9, D10, D11, D12 in high-frequency rectification circuit are power device；Reverse-filling direct current
Diode D8 in output circuit is power device；Above-mentioned power device is installed on a heat sink；Radiator is air-cooled and/or liquid
Cold heat sink；DC/DC controllers and DC/DC PWM isolated drive circuits are encapsulated in heat conduction shell, DC/DC controllers and DC/
DC PWM isolated drive circuits isolate setting with radiator.
In the present embodiment, switching device Q1, Q2, Q3, Q4, Q5 in above-mentioned DC charging motor are brilliant using insulated gate bipolar
Body pipe IGBT or SIC power model.
The operation principle of the present invention is as follows：Automobile to be charged is connected with charger, the on-vehicle battery pipe on automobile to be charged
Reason system (BMS) is communicated by CAN with the off-board DC charging machine controller on charger；The present invention starts working
When, three-phase and four-line alternating current directly enters PFC rectification circuits through breaker, contactor, becomes direct current, PFC rectification circuits are defeated
Go out end and separate multichannel, be connected respectively with multichannel DC/DC power conversion inputs, the output end difference of each DC/DC power conversions is defeated
Go out the direct current that the off-board DC charging machine controller met on charger issues requirement to fill to electric automobile through attachment means
Electricity.The off-board DC charging machine controller of charger is after charge requirement is received, in guarantee personnel, the condition of equipment safety
Under, according to vehicle mounted battery management system (BMS) demand, according to each DC/DC power conversions maximum charge ability of charger itself and
The smaller value of vehicle mounted battery management system (BMS) demand issues output voltage, current-order to each DC/DC power conversions, each DC/
DC power conversions output voltage, electric current give the charging on-vehicle battery of automobile to be charged by attachment means.
The present invention has following features：
1) the overall design modularization of DC charging motor, structuring；The design of whole DC charging motor be divided into exchange input,
PFC rectifications, power conversion, direct current output, attachment means and off-board DC charging machine controller composition；Wherein, PFC rectifications and
Power conversion has a respective controller, and with off-board DC charging machine controller real-time communication, more favourable ensure that be whole
Individual charging process it is reliable and safe；Exchange input and PFC rectifications are input control and the process part of charger, while after being
The common portion of the power conversion output of level multiple-channel output；The power of PFC rectifications, which expands, can pass through the in parallel or whole of switching tube
Individual PFC rectifications parallel connection is realized；
2) main circuit power heat-generating electronic elements (including the AC rectification diode, the switch of PFC rectification circuits of complete machine
Pipe, high-speed rectifier pipe, switching tube, the high-speed rectifier pipe of LLC full-bridge resonance circuits) it is arranged on special large volume radiator
Radiating；Air-cooled or liquid that radiator is equipped with by charger is cold to radiate；
3) weak control circuit of the present invention is encapsulated in the housing with good heat radiating, heat-insulated with power heater element；Carry
The IP degree of protection of high charge machine, improves the service life under system adverse circumstances.
4) complete machine is designed using multiple-channel output.On the one hand the service efficiency of charger is improved；On the other hand power point is passed through
Expand (in parallel by the LLC full-bridges resonance circuit in parallel or whole of switching tube) with (system distribution) or power and meet future 3
Demand of~5 years electric automobiles to DC charging acc power increase-volume；
5) key switch element substitutes Traditional DC using insulated gate bipolar transistor (IGBT) or SIC power models and filled
The FET (MOSFET) used in power supply module；Simplify power circuit design, improve charger reliability, reduction charging
Machine cost.
The present invention is a kind of ingenious in design, function admirable, convenient and practical high power DC charger.
Claims (8)
1. a kind of high power DC charger, it is characterised in that include breaker, contactor, PFC rectification circuits, some chargings
Loop, off-board DC charging machine controller, three-phase and four-line AC-input voltage are connected by breaker with contactor, contactor
Output be connected with PFC rectification circuit input ends, PFC rectification circuit output ends are divided into multichannel, respectively with some charge circuits connect
Connect, the output end of some charge circuits exports direct current to electric automobile respectively, wherein, contactor, PFC rectification circuits and every
Connection of the charge circuit with off-board DC charging machine controller.Independently connect and be controlled by it.
2. high power DC charger according to claim 1, it is characterised in that above-mentioned PFC rectification circuits include EMI
Filter circuit, rectification circuit, pfc circuit, PFC PWM isolation drives control circuit, pfc controller, wherein EMI filter circuit
The output end connection of input and contactor, the input of rectification circuit and the output end of EMI filter circuit are connected, rectification circuit
Output end and the input of pfc circuit connect, it is defeated that the output end of pfc circuit output direct current supplies electricity to multichannel DC/DC power conversions
Enter end, pfc circuit controls circuit to be connected with pfc controller by PFC PWM isolation drives.
3. high power DC charger according to claim 2, it is characterised in that the rectification circuit of above-mentioned PFC rectification circuits
Include the bridge rectifier being made up of diode D1, D2, D3, D4, D5, D6；Above-mentioned pfc circuit includes switching device
Q5, electric capacity C1, C2, diode D7, current transformer T1, inductance L1, wherein Q5 gate pole and PFC PWM isolation drives control electricity
Road is connected, and Q5 colelctor electrode is connected with diode D7 anode and is connected with inductance L1 one end, and Q5 emitter stage and electric current is mutual
Sensor T1 primary coil connection, current transformer T1 secondary coil is connected with PFC PWM isolation drives control circuit, electric current
The one end of transformer T1 primary coil also with electric capacity C1, C2 is connected, and the electric capacity C1 other end is connected with the inductance L1 other end,
The C2 other end is connected with diode D7 negative electrode, and pfc controller is connected with PFC PWM isolation drives control circuit.
4. high power DC charger according to claim 2, it is characterised in that diode D1 in above-mentioned rectification circuit,
D2, D3, D4, D5, D6 are power devices；Diode D7 and switching device Q5 in pfc circuit are power devices；Above-mentioned power device
Part is installed on a heat sink, and radiator is air-cooled or liquid cooling heat radiator；Pfc controller and the encapsulation of PFC PWM isolated drive circuits
In heat conduction shell, pfc controller and PFC PWM isolated drive circuits isolate setting with radiator.
5. high power DC charger according to claim 1, it is characterised in that each above-mentioned charge circuit includes DC/DC
Power conversion, direct current output and attachment means, above-mentioned DC/DC power conversions include LLC full bridge inverters, high frequency transformation
Device, high-frequency rectification circuit, reverse-filling DC output circuit, DC/DC PWM isolation drives control circuit and DC/DC controllers, its
The input of middle LLC full bridge inverters is connected with the output end of PFC rectification circuits, the output end of LLC full bridge inverters with
The primary coil connection of high frequency transformer, the secondary coil of high frequency transformer and the input of high-frequency rectification circuit are connected, high frequency
The output end of rectification circuit is connected with the input of reverse-filling DC output circuit, the output end of reverse-filling DC output circuit with
Electric car charging inlet is connected, and DC/DC controllers control circuit to provide sampled voltage and electric current by DC/DC PWM isolation drives
DC/DC controllers are given, DC/DC controllers send PWM driving instruction and isolate drive to DC/DC PWM according to sampled voltage and electric current
Dynamic control circuit, controls the switching tube of circuit drives LLC full bridge inverters to modulate high frequency whole by DC/DCPWM isolation drives
The output voltage and electric current of current circuit, are protected through reverse-filling DC output circuit, export DC voltage.
6. high power DC charger according to claim 5, it is characterised in that the LLC of above-mentioned DC/DC power conversions is complete
Bridge inverter circuit includes four switching devices and its peripheral circuit, and four switching devices are Q1, Q2, Q3, Q4, Q1 door respectively
Pole, Q2 gate pole, Q3 gate pole, Q4 gate pole are all connected with DC/DC PWM isolation drives control circuit, Q1 emitter stage, Q2
Primary coil all with high frequency transformer T2 of colelctor electrode, Q3 emitter stage, Q4 colelctor electrode be connected, Q1 colelctor electrode and Q3's
Colelctor electrode is connected with the anode with alminium electrolytic condenser C2, the negative terminal of Q2 emitter stage and Q4 emitter stage all with alminium electrolytic condenser C2
Connection, high-frequency rectification circuit includes the bridge rectifier being made up of diode D9, D10, D11, D12；Reverse-filling direct current is defeated
Go out circuit and include diode D8, diode D8 anode and the bridge rectifier being made up of diode D9, D10, D11, D12
The connection of output end anode, the input of diode D8 negative electrode and automobile connects.
7. high power DC charger according to claim 5, it is characterised in that the LLC of above-mentioned DC/DC power conversions is complete
Four switching devices Q1, Q2, Q3, Q4 of bridge inverter circuit are power device；Diode D9, D10 in high-frequency rectification circuit,
D11, D12 are power device；Diode D8 in reverse-filling DC output circuit is power device；Above-mentioned power device is arranged on
On radiator；Radiator is air-cooled and/or liquid cooling heat radiator；DC/DC controllers and DC/DC PWM isolated drive circuits are encapsulated in
In heat conduction shell, DC/DC controllers and DC/DCPWM isolated drive circuits isolate setting with radiator.
8. the high power DC charger according to claim any one of 1-7, it is characterised in that in above-mentioned DC charging motor
Switching device Q1, Q2, Q3, Q4, Q5 use insulated gate bipolar transistor IGBT or SIC power models.
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| CN201710408791.5A CN107017692A (en) | 2017-06-02 | 2017-06-02 | A kind of high power DC charger |
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| CN201710408791.5A CN107017692A (en) | 2017-06-02 | 2017-06-02 | A kind of high power DC charger |
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| CN201710408791.5A Pending CN107017692A (en) | 2017-06-02 | 2017-06-02 | A kind of high power DC charger |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107453462A (en) * | 2017-09-06 | 2017-12-08 | 广东万城万充电动车运营股份有限公司 | A kind of High-reliability large-power DC charging motor |
| CN107465230A (en) * | 2017-09-06 | 2017-12-12 | 广东万城万充电动车运营股份有限公司 | A kind of electric motorcar charging station of low cost DC distribution |
| CN107734936A (en) * | 2017-11-13 | 2018-02-23 | 广东万城万充电动车运营股份有限公司 | High protection DC charging motor based on interior circulation air conditioner heat pipe heat exchanging |
| CN108177551A (en) * | 2018-02-09 | 2018-06-19 | 江苏万帮德和新能源科技股份有限公司 | A kind of integration charging system |
| CN108377007A (en) * | 2017-11-23 | 2018-08-07 | 全球能源互联网欧洲研究院 | A kind of electric vehicle DC charging system |
| CN109130909A (en) * | 2018-07-27 | 2019-01-04 | 广州万城万充新能源科技有限公司 | A kind of intelligent connection apparatus of novel electric vehicle conduction charging |
| CN109484243A (en) * | 2018-11-15 | 2019-03-19 | 江苏万帮德和新能源科技股份有限公司 | Rectifier cabinet, charging heap and working method with power intelligent distribution function |
| CN110323815A (en) * | 2018-08-22 | 2019-10-11 | 成都信息工程大学 | A kind of Vehicular charger convertor circuit |
| CN113525149A (en) * | 2021-08-12 | 2021-10-22 | 长春捷翼汽车零部件有限公司 | Electric energy supply control method and device, electronic equipment and storage medium |
| CN113659689A (en) * | 2021-08-18 | 2021-11-16 | 中车青岛四方车辆研究所有限公司 | Charger circuit and module |
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| CN117901692A (en) * | 2023-11-23 | 2024-04-19 | 安徽维德电源有限公司 | High-power electric vehicle charging system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202524136U (en) * | 2012-04-20 | 2012-11-07 | 湖北点元电子信息技术有限公司 | Device for charging lithium battery of purely electric vehicle |
| CN105634085A (en) * | 2014-11-26 | 2016-06-01 | 北京奇峰聚能科技有限公司 | High-power charger for parallel double transformers |
| CN205489720U (en) * | 2016-02-19 | 2016-08-17 | 英飞特电子（杭州）股份有限公司 | New energy automobile's charging system |
| CN106230063A (en) * | 2016-08-30 | 2016-12-14 | 湖南红太阳新能源科技有限公司 | A kind of DC charging device, system and charging method |
| CN106604610A (en) * | 2016-12-27 | 2017-04-26 | 北京非凡易智科技发展有限公司 | Charger and control method and device thereof |
| CN207339303U (en) * | 2017-06-02 | 2018-05-08 | 广东万城万充电动车运营股份有限公司 | High power DC charger |
-
2017
- 2017-06-02 CN CN201710408791.5A patent/CN107017692A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202524136U (en) * | 2012-04-20 | 2012-11-07 | 湖北点元电子信息技术有限公司 | Device for charging lithium battery of purely electric vehicle |
| CN105634085A (en) * | 2014-11-26 | 2016-06-01 | 北京奇峰聚能科技有限公司 | High-power charger for parallel double transformers |
| CN205489720U (en) * | 2016-02-19 | 2016-08-17 | 英飞特电子（杭州）股份有限公司 | New energy automobile's charging system |
| CN106230063A (en) * | 2016-08-30 | 2016-12-14 | 湖南红太阳新能源科技有限公司 | A kind of DC charging device, system and charging method |
| CN106604610A (en) * | 2016-12-27 | 2017-04-26 | 北京非凡易智科技发展有限公司 | Charger and control method and device thereof |
| CN207339303U (en) * | 2017-06-02 | 2018-05-08 | 广东万城万充电动车运营股份有限公司 | High power DC charger |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107465230A (en) * | 2017-09-06 | 2017-12-12 | 广东万城万充电动车运营股份有限公司 | A kind of electric motorcar charging station of low cost DC distribution |
| CN107453462A (en) * | 2017-09-06 | 2017-12-08 | 广东万城万充电动车运营股份有限公司 | A kind of High-reliability large-power DC charging motor |
| CN107734936A (en) * | 2017-11-13 | 2018-02-23 | 广东万城万充电动车运营股份有限公司 | High protection DC charging motor based on interior circulation air conditioner heat pipe heat exchanging |
| CN108377007A (en) * | 2017-11-23 | 2018-08-07 | 全球能源互联网欧洲研究院 | A kind of electric vehicle DC charging system |
| CN108177551A (en) * | 2018-02-09 | 2018-06-19 | 江苏万帮德和新能源科技股份有限公司 | A kind of integration charging system |
| CN109130909B (en) * | 2018-07-27 | 2023-11-10 | 广州万城万充新能源科技有限公司 | Intelligent connection device for conducting and charging electric automobile |
| CN109130909A (en) * | 2018-07-27 | 2019-01-04 | 广州万城万充新能源科技有限公司 | A kind of intelligent connection apparatus of novel electric vehicle conduction charging |
| CN110323815A (en) * | 2018-08-22 | 2019-10-11 | 成都信息工程大学 | A kind of Vehicular charger convertor circuit |
| CN110323815B (en) * | 2018-08-22 | 2024-05-28 | 成都信息工程大学 | Current conversion circuit of vehicle-mounted charger |
| CN109484243A (en) * | 2018-11-15 | 2019-03-19 | 江苏万帮德和新能源科技股份有限公司 | Rectifier cabinet, charging heap and working method with power intelligent distribution function |
| EP3988380A1 (en) * | 2020-10-21 | 2022-04-27 | Sungrow Power Supply Co., Ltd. | Charging pile |
| CN113525149A (en) * | 2021-08-12 | 2021-10-22 | 长春捷翼汽车零部件有限公司 | Electric energy supply control method and device, electronic equipment and storage medium |
| CN113659689A (en) * | 2021-08-18 | 2021-11-16 | 中车青岛四方车辆研究所有限公司 | Charger circuit and module |
| CN113659689B (en) * | 2021-08-18 | 2024-04-26 | 中车青岛四方车辆研究所有限公司 | Charger circuit and module |
| CN117901692A (en) * | 2023-11-23 | 2024-04-19 | 安徽维德电源有限公司 | High-power electric vehicle charging system |
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