CN109318727A - New energy overall height imitates charging power source device - Google Patents
New energy overall height imitates charging power source device Download PDFInfo
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- CN109318727A CN109318727A CN201811546797.XA CN201811546797A CN109318727A CN 109318727 A CN109318727 A CN 109318727A CN 201811546797 A CN201811546797 A CN 201811546797A CN 109318727 A CN109318727 A CN 109318727A
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- 238000007600 charging Methods 0.000 title claims abstract description 33
- 238000004804 winding Methods 0.000 claims abstract description 17
- 230000009466 transformation Effects 0.000 claims abstract description 12
- 239000003990 capacitor Substances 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 7
- 238000000518 rheometry Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 210000004027 cell Anatomy 0.000 description 15
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 210000004899 c-terminal region Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010277 constant-current charging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
Classifications
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- 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
- B60L2210/30—AC 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
-
- 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
- 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
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of new energy overall height to imitate charging power source device, including power grid incoming end, power grid incoming end is connected with adjustable transformer unit, and adjustable transformer unit is connected with multiple exchanges and turns DC converting unit, and the exchange turns DC converting unit and is connected separately with power output end；The adjustable transformer unit includes the switch unit connecting with power grid incoming end；The output end of switch unit is connected with transformer and is connected with the transformation of transformer input winding, and the transformer further includes that the multiple stage variable pressures matched with transformation input winding export winding, and multiple transformation output windings are connected with contactor selecting unit.The present invention is converted using two-stage electric energy, substantially increases energy conversion efficiency；And the function that a plurality of output circuit independently exports multilevel voltage is realized, meet the charge requirement of different automobile types.
Description
Technical field
The present invention relates to new-energy automobile charging field, in particular to a kind of new energy overall height imitates charging power source device.
Background technique
With the accelerated development of new-energy automobile industry, the demand to mating charging pile is more and more, especially high-power
DC charging device.New-energy automobile mainly includes passenger car, commercial vehicle, three kinds of vehicles of logistic car, the volume of corresponding battery pack
Constant voltage is broadly divided into two kinds of grades: one is 300~350V (passenger car, logistic car), another kind is 500~600V, direct current
Charge power supply needs to meet the charge requirement of above two voltage class.Own loss can consume charge power supply during the charging process
A part of electric energy, for the operation of power station, needing charge efficiency, the higher the better, reduces charging station operation cost to greatest extent.
High power DC charging unit generally build open air in simultaneously, and with region difference, surrounding environment change is larger, continuous with market
Development, to charging pile reliability, environmental adaptability requirement is also higher and higher.
Traditional charging power source device uses three-level energy conversion unit, and the first order is transformer pressure-reducing unit, and the second level is
Exchange turns DC converting unit, and the third level is DC to DC converter unit.Transformer pressure-reducing unit becomes 10kV distribution voltage
For 380Vac alternating current, exchange turns DC converting unit and the alternating current of 380V is transformed to 800V's by Vienna rectification circuit
Direct current, DC to DC converter unit is by being transformed to the direct current of 200~750V based on LLC topological circuit.Wherein exchange turns straight
Stream converter unit and DC to DC converter unit are generally integrated into a modular power source.The modular power source monomer power is up to
20kW, composition large power supply need multiple parallel connections, the switching device that wherein DC to DC converter unit uses for metal-oxide-semiconductor,
And use multiple parallel ways.First, which is converted using three-level energy, and the efficiency of first order transformer pressure-reducing unit is usual
98.5%, second level exchange turns DC converting unit efficiencies 99%, and third level DC to DC converter unit efficiency exists
97%, for the efficiency of whole system 95%, whole efficiency is relatively low.Second, the DC to DC converter unit of the device is generally adopted
With LLC topology, monomer power is up to 20kW, and the semiconductor switch pipe in main circuit mostly uses MOS parallel way.Due to MOS
There are discreteness, mass production processes to have differences for device, cause device parallel running reliability be not it is very high, especially disliking
In bad environment (such as high humidity, high salt fog etc.).
Summary of the invention
The object of the present invention is to provide a kind of new energy overall height to imitate charging power source device.The present invention uses two-stage electric energy
Conversion, substantially increases energy conversion efficiency；And realize a plurality of output circuit and independently export multilevel voltage, meet difference
The charge requirement of vehicle.
Technical solution of the present invention: a kind of new energy overall height effect charging power source device, including power grid incoming end, power grid access
End is connected with adjustable transformer unit, and adjustable transformer unit is connected with multiple exchanges and turns DC converting unit, and the exchange turns
DC converting unit is connected separately with power output end；
The adjustable transformer unit includes the switch unit connecting with power grid incoming end；The output end of switch unit connects
There is transformer and be connected with the transformation of transformer input winding, the transformer further includes matching with transformation input winding
Multiple stage variable pressures export winding, and stage variable pressure output winding is connected with contactor selecting unit；The exchange turns DC converting
Unit includes the LCL filter connecting with the output end of contactor selecting unit, and LCL filter output end is connected with three level three
Phase half-bridge circuit, three-level three-phase half-bridge circuit are connected with power output end；The adjustable transformer unit is also connected with can
Voltage regulator/transformer cell controller, the exchange turn DC converting unit and are connected with exchange to turn DC converting cell controller, institute
The adjustable transformer cell controller stated turns DC converting cell controller with exchange and connect.
In above-mentioned new energy overall height effect charging power source device, the three-level three-phase half-bridge circuit is by three identical three
Level single-phase semi-bridge circuit is constituted, and tri-level single phase half-bridge circuit includes IBGT module T1_A, IBGT module T2_A, IBGT module
T3_A, IBGT module T4_A, diode D1 and diode D2；The e grade of the IBGT module T1_A is connected with and power output end
Connected electric current exports the end DC+, and the c grade of the IBGT module T1_A is connect with the e grade of IBGT module T2_A, the IBGT module
The c grade of T2_A is connect with the e grade of IBGT module T3_A, the c grade and the e cascade of IBGT module T4_A of the IBGT module T3_A
It connects, the c grade of the IBGT module T4_A is connected with the electric current output end DC- being connected with power output end；The IBGT module T2_
The pole the c connection electric current of A inputs the end A；The anode of the c grade connection diode D2 of the IBGT module T3_A, the cathode of diode D2
The anode of diode D1 is connected, the cathode of diode D1 is connect with the e grade of IBGT module T2_A；The cathode of the diode D2 point
It is not connected with capacitor C4 and capacitor C5, capacitor C4 is connected with the electric current output end DC+, and capacitor C5 is connected with the electric current output end DC-.
In new energy overall height effect charging power source device above-mentioned, the electric current output end DC+ is equipped with fuse F1, the electricity
The stream output end DC- is equipped with fuse F2.
In new energy overall height effect charging power source device above-mentioned, the adjustable transformer unit generates 140Vac and 280Vac
Two kinds of voltage gradations.
In new energy overall height above-mentioned effect charging power source device, the application method of the device is,
A, the battery pack voltage rating for the new-energy automobile being electrically charged is detected；
B, when the battery pack voltage rating of detection meets VDC>300V&<350V, the output of adjustable transformer unit
140Vac charges to battery pack；When detection battery pack voltage rating meets VDC>500V&<600V, adjustable transformer list
Member output 280Vac, charges the battery；
C, when the battery pack voltage rating of detection is unsatisfactory for VDC>300V&<350V and VDC>500V&<600V, terminate to fill
Electricity work, does not charge to battery pack.
Compared with prior art, the invention has the following advantages:
1, for the present invention only with two-stage energy conversion unit, the traditional scheme that compares has lacked level-one energy conversion unit.The
Usually 98.5%, second level exchange turns DC converting unit cell power to be accomplished the efficiency of level-one adjustable transformer unit
100kW, for efficiency up to 98.5%, system total efficiency reaches as high as 97%.Greatly reduce equipment own loss during the charging process,
Power station operation cost is reduced, energy conversion efficiency is substantially increased, and realizes a plurality of output circuit and independently exports multistage electricity
The function of pressure meets the charge requirement of different automobile types.
2, exchange of the invention turns DC converting unit using the three level rectifying technologies based on high-power IGBT module, partly
Conductor switching tube uses the IGBT module of single three-level topology, in parallel without device, and system reliability is high, especially severe
In environment (such as high humidity, high salt fog etc.).
3, the present invention includes that adjustable transformer unit turns DC converting unit with exchanging, and adjustable transformer unit can be realized more
The reduced output voltage of road voltage, the distribution of the input terminal connection 10kV of adjustable transformer unit when use, adjustable transformer unit
Output end is connected to the input terminal that exchange turns DC converting unit, realizes an adjustable transformer unit and is connected to multiple exchanges
Turn DC converting unit, and be converted to two kinds of voltage class of 140Vac, 280Vac, adjustable transformer cell controller can pass through
Control contactor selecting unit selects one of two kinds of voltage class of 140Vac or 280Vac on every road to be connected to output end, realizes
The voltage class accessed during the charging process is selected according to different vehicles, is finally turned in DC converting unit in exchange
It realizes and the alternating voltage that adjustable transformer unit exports is converted into DC voltage.
4, when using the device, the battery pack voltage rating for the new-energy automobile being electrically charged is detected first；When
When the battery pack voltage rating of detection meets VDC>300V&<350V, adjustable transformer unit export 140Vac, to battery pack into
Row charging；When detection battery pack voltage rating meets VDC>500V&<600V, adjustable transformer unit exports 280Vac, to electricity
It charges in pond；When the battery pack voltage rating of detection is unsatisfactory for VDC>300V&<350V and VDC>500V&<600V, terminate
Charging work does not charge to battery pack；It is mismatched to effectively avoid battery pack and charging voltage, so that battery pack
It is damaged or explodes, and cause casualties and property loss.
Detailed description of the invention
Fig. 1 is electrical block diagram of the invention；
Fig. 2 is the electrical block diagram of adjustable voltage transformation unit；
Fig. 3 is the electrical block diagram that exchange turns DC converting unit；
Fig. 4 is operational flowchart of the invention.
1- power grid incoming end；2- adjustable transformer unit；201- switch unit；202- transformer；203- transformation input around
Group；204- stage variable pressure exports winding；205- contactor selecting unit；3- exchange turns DC converting unit；301-LCL filtering
Device；302- three-level three-phase half-bridge circuit；4- power output end；5- adjustable transformer cell controller；6- exchange turns direct current change
Change cell controller.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples, but be not intended as to the present invention limit according to
According to.
Embodiment: a kind of new energy overall height effect charging power source device, as shown in attached drawing 1-4, specifically as shown in Figure 1, including
Power grid incoming end 1, power grid incoming end 1 are connected with adjustable transformer unit 2, and adjustable transformer unit 2 is connected with multiple exchanges and turns
DC converting unit 3, the exchange turn DC converting unit 3 and are connected separately with power output end 4；
As shown in Fig. 2, the adjustable transformer unit 2 includes the switch unit 201 connecting with power grid incoming end 1；Switch
The output end of unit 201 is connected with transformer 202 and is connected with the transformation of transformer 202 input winding 203, the transformer
202 further include that the multiple stage variable pressures matched with transformation input winding 203 export winding 204, and stage variable pressure exports winding 204
It is connected with contactor selecting unit 205；It includes the output with contactor selecting unit 205 that the exchange, which turns DC converting unit 3,
The LCL filter 301 of connection is held, 301 output end of LCL filter is connected with three-level three-phase half-bridge circuit 302, three-level three-phase
Half-bridge circuit 302 is connected with power output end 4；The adjustable transformer unit 2 is also connected with the control of adjustable transformer unit
Device 5, the exchange turn DC converting unit 3 and are connected with exchange to turn DC converting cell controller 6, the adjustable transformer
Cell controller 5 turns DC converting cell controller 6 with exchange and connect.The adjustable transformer unit 2 generate 140Vac and
Two kinds of voltage gradations of 280Vac, exchange turn DC converting unit 3 and turn the three-phase alternating voltage 140Vac or 280Vac of input
It changes 200V~750V DC voltage into, and there is constant pressure, constant-current charging function meets new energy vehicle passenger car/logistic car/commercialization
The charge requirement of vehicle.The charging power source device, which mainly includes adjustable transformer unit 2, turns DC converting unit 3 with exchanging, wherein
Adjustable transformer unit 2 realizes the reduced output voltage of plurality of voltages, the input terminal connection 10kV of adjustable transformer unit 2 when use
Distribution, the output end of adjustable transformer unit 2 are connected to exchange and turn the input terminal of DC converting unit 3, realize one it is adjustable
Transformer unit 2 is connected to multiple exchanges and turns DC converting unit 2, and is converted to two kinds of voltage class of 140Vac, 280Vac, can
Voltage regulator/transformer cell controller 5 can select two kinds of 140Vac or 280Vac of every road by control contactor selecting unit 205
One of voltage class is connected to output end, realizes that the voltage class accessed during the charging process is carried out according to different vehicles
Selection, finally turns to realize in DC converting unit 3 alternating voltage that adjustable transformer unit 2 exports is converted into direct current in exchange
Voltage.
Wherein, exchange turns DC converting cell controller 6 and adjustable transformer cell controller 5 and passes through communication modes company
It connects, such as CAN controller local area network.
As shown in figure 3, the three-level three-phase half-bridge circuit 302 is by three identical tri-level single phase half-bridge circuit A, B
It is constituted with C, tri-level single phase half-bridge circuit A includes IBGT module T1_A, IBGT module T2_A, IBGT module T3_A and IBGT mould
Block T4_A, diode D1 and diode D2；It is defeated that the e grade of the IBGT module T1_A is connected with the electric current being connected with power output end
The end DC+ out, the c grade of the IBGT module T1_A are connect with the e grade of IBGT module T2_A, the c grade of the IBGT module T2_A with
The e grade of IBGT module T3_A connects, and the c grade of the IBGT module T3_A is connect with the e grade of IBGT module T4_A, the IBGT mould
The c grade of block T4_A is connected with the electric current output end DC- being connected with power output end；The pole c of the IBGT module T2_A connects electricity
The stream input end A；The anode of the c grade connection diode D2 of the IBGT module T3_A, the cathode of diode D2 connect diode D1
Anode, the cathode of diode D1 connect with the e grade of IBGT module T2_A, and the cathode of the diode D2 is connected separately with capacitor
C4 and capacitor C5, capacitor C4 are connected with the electric current output end DC+, and capacitor C5 is connected with the electric current output end DC-.
The tri-level single phase half-bridge circuit B include IBGT module T1_B, IBGT, module T2_B, IBGT module T3_B and
IBGT module T4_B, diode D3 and diode D4；The e grade connection electric current of the IBGT module T1_B exports the end DC+, described
The c grade of IBGT module T1_B is connect with the e grade of IBGT module T2_B, the c grade and IBGT module T3_B of the IBGT module T2_B
The connection of e grade, the c grade of the IBGT module T3_B connect with the e grade of IBGT module T4_B, the c grade of the IBGT module T4_B
It connects electric current and exports the end DC-；The pole c of the IBGT module T2_B connects the end power input B；The c grade of the IBGT module T3_B
Connect the anode of diode D4, the anode of the cathode connection D3 of diode D4, the cathode of diode D3 and the e of IBGT module T2_B
Grade connection, the cathode of the diode D4 are connect with the cathode of diode D2.
The tri-level single phase half-bridge circuit C include ICGT module T1_C, ICGT module T2_C, ICGT module T3_C and
ICGT module T4_C, diode D5 and diode D6；The e grade connection electric current of the ICGT module T1_C exports the end DC+, described
The c grade of ICGT module T1_C is connect with the e grade of ICGT module T2_C, the c grade and ICGT module T3_C of the ICGT module T2_C
The connection of e grade, the c grade of the ICGT module T3_C connect with the e grade of ICGT module T4_C, the c grade of the ICGT module T4_C
It connects electric current and exports the end DC-；The pole the c connection electric current of the ICGT module T2_C inputs C-terminal；The c grade of the ICGT module T3_C
Connect the anode of diode D6, the anode of the cathode connection D5 of diode D6, the cathode of diode D5 and the e of ICGT module T2_C
Grade connection, the cathode of the diode D6 are connect with the cathode of diode D2.Exchange of the invention turns the use of direct current transformation unit 3
The three level rectifying technologies based on high-power IGBT module, semiconductor switch pipe use the IGBT module of single three-level topology,
Without device parallel connection, system reliability is high, especially in adverse circumstances such as high humidity, high salt fog etc..
The electric current output end DC+ is equipped with fuse F1, and the electric current output end DC- is equipped with fuse F2, played
Press the effect of protection.The cathode of the diode D2 is connected separately with capacitor C4 and capacitor C5, and capacitor C4 and electric current export the end DC+
It is connected, capacitor C5 is connected with the electric current output end DC-, plays the role of voltage stabilization and current stabilization.
As shown in figure 4, the application method of the device is:
A, the battery pack voltage rating for the new-energy automobile being electrically charged is detected；
B, when the battery pack voltage rating of detection meets VDC>300V&<350V, the output of adjustable transformer unit
140Vac charges to battery pack；When detection battery pack voltage rating meets VDC>500V&<600V, adjustable transformer list
Member output 280Vac, charges the battery；
C, when the battery pack voltage rating of detection is unsatisfactory for VDC>300V&<350V and VDC>500V&<600V, terminate to fill
Electricity work, does not charge to battery pack.
Working principle: the charging power source device, which mainly includes adjustable transformer unit 2, turns DC converting unit 3 with exchanging,
Wherein adjustable transformer unit 2 realizes the reduced output voltage of plurality of voltages, the input terminal connection of adjustable transformer unit 2 when use
The distribution of 10kV, the output end of adjustable transformer unit 2 are connected to the input terminal that exchange turns DC converting unit 3, realize one
A adjustable transformer unit 2 is connected to multiple exchanges and turns DC converting unit 3, and is converted to two kinds of voltages of 140Vac, 280Vac
Grade, adjustable transformer cell controller 5 can be selected by control contactor selecting unit 205 every road 140Vac or
One of two kinds of voltage class of 280Vac are connected to output end, realize the voltage class accessed during the charging process according to different
Vehicle is selected, and finally turns to realize the alternating voltage for exporting adjustable transformer unit 2 in DC converting unit 3 in exchange
It is converted into DC voltage.
Claims (5)
1. new energy overall height imitates charging power source device, it is characterised in that: including power grid incoming end (1), power grid incoming end (1) connection
Have adjustable transformer unit (2), adjustable transformer unit (2) is connected with multiple exchanges and turns DC converting unit (3), the exchange
Turn DC converting unit (3) and is connected separately with power output end (4)；
The adjustable transformer unit (2) includes the switch unit (201) connecting with power grid incoming end (1)；Switch unit (201)
Output end be connected with transformer (202) and with the transformation of transformer (202) input winding (203) be connected, the transformer
It (202) further include multiple stage variable pressures output winding (204) matched with transformation input winding (203), stage variable pressure output
Winding (204) is respectively connected with contactor selecting unit (205)；It includes selecting with contactor that the exchange, which turns DC converting unit (3),
The LCL filter (301) of the output end connection of unit (205) is selected, LCL filter (301) output end is connected with three-level three-phase
Half-bridge circuit (302), three-level three-phase half-bridge circuit (302) are connected with power output end (4)；The adjustable transformer unit
(2) it is also connected with adjustable transformer cell controller (5), the exchange turns DC converting unit (3) and is connected with exchange turn directly
Rheology is changed cell controller (6), and the adjustable transformer cell controller (5) turns DC converting cell controller with exchanging
(6) it connects.
2. new energy overall height according to claim 1 imitates charging power source device, it is characterised in that: the three-level three-phase half
Bridge circuit (302) is made of three identical tri-level single phase half-bridge circuits, and tri-level single phase half-bridge circuit includes IBGT module
T1_A, IBGT module T2_A, IBGT module T3_A, IBGT module T4_A, diode D1 and diode D2；The IBGT module
The e grade of T1_A is connected with the electric current output end DC+ being connected with power output end, the c grade and IBGT mould of the IBGT module T1_A
The e grade of block T2_A connects, and the c grade of the IBGT module T2_A is connect with the e grade of IBGT module T3_A, the IBGT module T3_A
C grade connect with the e grade of IBGT module T4_A, the c grade of the IBGT module T4_A is connected with the electricity being connected with power output end
The stream output end DC-；The pole the c connection electric current of the IBGT module T2_A inputs the end A；The c grade connection two of the IBGT module T3_A
The anode of pole pipe D2, the anode of the cathode connection diode D1 of diode D2, the cathode of diode D1 and the e of IBGT module T2_A
Grade connection；The cathode of the diode D2 is connected separately with capacitor C4 and capacitor C5, and capacitor C4 is connected with the electric current output end DC+,
Capacitor C5 is connected with the electric current output end DC-.
3. new energy overall height according to claim 2 imitates charging power source device, it is characterised in that: the electric current exports DC+
End is equipped with fuse F1, and the electric current output end DC- is equipped with fuse F2.
4. new energy overall height according to claim 1 imitates charging power source device, it is characterised in that: the adjustable transformer list
First (2) generate two kinds of voltage gradations of 140Vac and 280Vac.
5. new energy overall height according to claim 1-4 imitates charging power source device, it is characterised in that: the device
Application method is,
A, the battery pack voltage rating for the new-energy automobile being electrically charged is detected；
B, when the battery pack voltage rating of detection meets VDC>300V&<350V, adjustable transformer unit exports 140Vac, right
Battery pack charges；When detection battery pack voltage rating meets VDC>500V&<600V, the output of adjustable transformer unit
280Vac is charged the battery；
C, when the battery pack voltage rating of detection is unsatisfactory for VDC>300V&<350V and VDC>500V&<600V, terminate battery charger
Make, does not charge to battery pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811546797.XA CN109318727A (en) | 2018-12-18 | 2018-12-18 | New energy overall height imitates charging power source device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811546797.XA CN109318727A (en) | 2018-12-18 | 2018-12-18 | New energy overall height imitates charging power source device |
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| Publication Number | Publication Date |
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| CN109318727A true CN109318727A (en) | 2019-02-12 |
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| CN201811546797.XA Pending CN109318727A (en) | 2018-12-18 | 2018-12-18 | New energy overall height imitates charging power source device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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