CN205565845U - System for a battery charges for giving at least one electric automobile - Google Patents

System for a battery charges for giving at least one electric automobile Download PDF

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Publication number
CN205565845U
CN205565845U CN201490000986.6U CN201490000986U CN205565845U CN 205565845 U CN205565845 U CN 205565845U CN 201490000986 U CN201490000986 U CN 201490000986U CN 205565845 U CN205565845 U CN 205565845U
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CN
China
Prior art keywords
current transformer
voltage
electric automobile
battery
transformer
Prior art date
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Expired - Lifetime
Application number
CN201490000986.6U
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Chinese (zh)
Inventor
姚大伟
杨晓波
陈瑶
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Abb Electric Transportation Co ltd
ABB AS Norway
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ABB T&D Technology AG
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Classifications

    • 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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/145—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M7/155—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H02M7/162—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only in a bridge configuration
    • H02M7/1623—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only in a bridge configuration with control circuit
    • H02M7/1626—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only in a bridge configuration with control circuit with automatic control of the output voltage or current
    • 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
    • H02J5/00—Circuit arrangements for transfer of electric power between ac networks and dc networks
    • 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
    • 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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/145—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M7/155—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H02M7/17—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only arranged for operation in parallel
    • 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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/145—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M7/155—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H02M7/19—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only arranged for operation in series, e.g. for voltage multiplication
    • 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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M7/219—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a bridge configuration
    • 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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M7/23—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only arranged for operation in parallel
    • 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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M7/25—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only arranged for operation in series, e.g. for multiplication of voltage
    • 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
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20—Charging or discharging characterised by the power electronics converter
    • 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
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • 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
    • H02M1/12—Arrangements for reducing harmonics from ac input or output
    • 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
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
    • H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
    • H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
    • H02M5/453—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M5/458—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M5/4585—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only having a rectifier with controlled elements
    • 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

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The utility model provides a system of charging to at least one electric automobile's battery, include: first converter, it provides first DC voltage to be suitable for, at least one transformer, at least one second converter, every second converter are couple to one corresponding output in at least one transformer to provide the second DC voltage, and first control ware, wherein: the output of first converter set to with the second converter in one corresponding output be connected to provide respectively as charging voltage's the first DC voltage and the combination of second DC voltage for a plurality of batteries of electric vehicle, and the first control ware is suitable for the batteries of electric vehicle's that considers the charging voltage that first converter provides charging current's measured value to control the second converter, adjusts the second DC voltage in response to batteries of electric vehicle from this. Through having this batteries of electric vehicle charging system, the batteries of electric vehicle's that can charge simultaneously sum is relevant with the quantity of second converter.

Description

For the system charged to the battery of at least one electric automobile
Technical field
The utility model relates to the field of the system charged to the battery of electric automobile, especially relates to And for the system charged to the battery of at least one electric automobile.
Background technology
Along with the development of electric automobile (EV), devise electric car charger also for electric automobile And built central charging station in the world.PCT application WO2012/119300 A1 is open A kind of electric car charger unit.According to Fig. 1 of WO2012/119300 A1, in order to carry out AC-DC (AC-DC) is changed, and have employed standard IGBT bridge in electric car charger unit, DC-DC converter will be used to the expectation voltage level of match battery afterwards.
Fig. 1 is to illustrate conventional electric car charger unit (CHAdeMo, electric automobile quick The technical specification of charger, on January 31st, 2012) block diagram.As it is shown in figure 1, electric automobile Charger unit 1 includes ac/dc current transformer 10 and the DC/DC converter 11 being connected in series.
Electric automobile charging station can include at least one electric car charger unit, thus it can Charge to the battery of at least one electric automobile.Depend on the type of bus, electric automobile charging station Two types can be defined as: station based on ac bus and station based on dc bus.Fig. 2 and 3 Respectively illustrate the electric automobile charging station based on ac bus of routine and the female based on direct current of routine The electric automobile charging station of line.As in figure 2 it is shown, electric automobile charging station 2 based on ac bus Including at least one the electric car charger unit 20 being coupled to ac bus 21.In view of exchange- DC transformer is distributed in electric automobile based on ac bus with electric car charger unit 20 and fills In power station 2, the AC-DC current transformer 200 used in each electric car charger unit 20 It is referred to as distributed ac/dc current transformer.Fig. 2 and Fig. 3 about WO2012/119300 A1 Description also teach that electric automobile charging station based on ac bus.As it is shown on figure 3, based on directly The electric automobile charging station 3 of stream bus includes sharing at least the one of same ac/dc current transformer 300 Individual electric car charger unit 30, but each electric car charger unit 30 all includes individually DC/DC converter 301.The input of DC/DC converter 301 passes through dc bus 31 It is coupled to the output of ac/dc current transformer 300.Compare with Fig. 2, electricity based on dc bus In electrical automobile charging station, ac/dc current transformer 300 is used to replace distributed ac/dc unsteady flow Device 200 and be therefore referred to as central authorities ac/dc current transformer.
Based in exchange and electric automobile charging station scheme based on direct current, it is used as electric automobile Whole current transformers of charger are full power convertors.As a example by the charging station of 50kW × 10, become The total capacity of stream device system is 1000kW, and total capacity actually doubles (ac/dc level 50kW × 10, DC-DC level 50kW × 10).Full power convertor bring high cost, high loss and Big/the weight that takes up room.
Utility model content
Therefore, the purpose of this utility model is to provide a kind of for the electricity of at least one electric automobile The system of pond charging, including: the first current transformer, it is adapted to provide for the first DC voltage；At least one Transformer；At least one second current transformer, each second current transformer is coupled at least one transformation The output of corresponding one in device, to provide the second DC voltage；And first controller；Its In: the output of the first current transformer is configured to and the output of corresponding in the second current transformer Connect, thus be respectively provided as the first DC voltage of charging voltage for multiple batteries of electric automobile Combination with the second DC voltage；And the first controller is suitable to be provided in view of the first current transformer The measured value of the charging current of the batteries of electric automobile of charging voltage controls the second current transformer, thus The second DC voltage is regulated in response to batteries of electric automobile.
By having described charging batteries of electric automobile system, the electric automobile that can be charged simultaneously The total quantity of battery is relevant to the quantity of the second current transformer.
Accompanying drawing explanation
Preferred exemplary embodiment shown in Can Zhaofutu, hereinafter will explain this in more detail The theme of utility model.Wherein:
Fig. 1 is the block diagram of the conventional electric car charger unit illustrating CHAdeMo；
Fig. 2 and Fig. 3 respectively illustrates the electric automobile charging station based on ac bus of routine with often The electric automobile charging station based on dc bus of rule；
Fig. 4 shows according to of the present utility model for charging to the battery of at least one electric automobile The embodiment of system；
Fig. 5 shows the first current transformer according to embodiment of the present utility model and the second current transformer Combination；
Fig. 6 shows according to of the present utility model for charging to the battery of at least one electric vehicle The another embodiment of system.
In reference numerals list, list the reference used in figure in summary form and contain Justice.In principle, the identical parts in figure have identical reference.
Detailed description of the invention
Fig. 4 shows according to of the present utility model for charging to the battery of at least one electric automobile The embodiment of system.As shown in Figure 4, for the battery charging of at least one electric automobile System 4 includes 40, ten the second current transformer 410-419 of the first current transformer, ten transformer 420-429 With the first controller 43.It should be understood by those skilled in the art that quantity and the transformer of the second current transformer Quantity can be equal to or more than one, this depends on the electric automobile electricity the most simultaneously charged The actual design of the quantity in pond.For the first current transformer 40 and input of the second current transformer 420-429 Electrical isolation between end (or electric isolution) and transformer 420-429 is provided, and therefore first become The input voltage of stream device 40 and the second current transformer 420-429 relative to each other floats.
First current transformer 40 can by the alternating voltage from external ac power source is carried out rectification come to The battery of electric automobile provides the first DC voltage U1 of the part as charging voltage.First becomes The AC of stream device 40 can be couple to outside power distribution network by main transformer, in order to receives and provides from outward The electric power of portion's AC power, and the DC side of the first current transformer 40 has the first and second outputs Sub-40a, 40b, first and second lead-out terminal 40a, 40b respectively with the first of dc bus 44 Couple with second pole 44a, 44b and the first DC voltage U1 is provided to dc bus 44.
Each in second current transformer 410-419 can be by the exchange from external ac power source Voltage carries out rectification to the electric automobile of each being couple in the second current transformer 410-419 Battery provides the second DC voltage U2 of the another part as charging voltage.Second current transformer The AC of 410-419 can be coupled to outside power distribution network by main transformer, in order to receives and provides from outward The DC side of each in the electric power of portion's AC power, and the second current transformer 410-419 has One and second lead-out terminal 410a, 410b-419a, 419b, and by their lead-out terminal 410a, 410b-419a, 419b provide the second DC voltage U2.
The output of each in the output of the first current transformer 40 and the second current transformer 410-419 It is connected in series, thus provides the first DC voltage U1 and the second DC voltage to the battery of electric automobile The combination of U2, and the two passes that charge power is in parallel is from external ac power source, the first change Stream device and the second current transformer are provided to batteries of electric automobile.Especially, by the first current transformer 40 He Example is regarded in the combination of one of them the second current transformer 410 as, the second output of the second current transformer 41 Sub-410b is couple to the first pole 44a of dc bus 44.When to charging batteries of electric automobile, by The second DC voltage U2 that second current transformer 410 provides is added in and is provided by the first current transformer 40 On first DC voltage U1, thus at the first lead-out terminal 410a of the first current transformer 410 and straight Charging batteries of electric automobile voltage U1+U2 is provided between second pole 44b of stream bus 44.This is former Reason may be used on the combination of the first current transformer 40 and any other second current transformer 411-419.From From the point of view of can flow shown in arrow, first current transformer 40 and one of them second current transformer 410 1 Playing work to provide charge power for a batteries of electric automobile B0, the first current transformer 40 is with another One the second current transformer 411 works together to provide charged electrical for another batteries of electric automobile B1 Pressure, other second current transformer 412-419 and other batteries of electric automobile B2-B9 are also such.The One controller 40 can be by (providing charging to this batteries of electric automobile in view of batteries of electric automobile Voltage) the measured value of charging current set driving signal thus control the second current transformer 410, 411 ..., 419, thus regulate the second DC voltage U2 in response to batteries of electric automobile.Especially Ground, the first controller 43 it is contemplated that the measured value of the charging current of batteries of electric automobile B0 is controlled Make the second current transformer 410, thus regulate it in response to the voltage of batteries of electric automobile B0 second straight Stream voltage U2, the first controller 43 it is contemplated that the measurement of the charging current of batteries of electric automobile B1 Value controls the second current transformer 411, thus regulates it in response to the voltage of batteries of electric automobile B1 Second DC voltage U2, other second current transformer 412-419 and other batteries of electric automobile B2-B9 Also it is such.Current measure device can be used to measure charging current, and current measure device may be arranged at The output of each in second current transformer 410-419.
By having the charging batteries of electric automobile system according to Fig. 4, it is possible to that charges is electronic simultaneously The sum of automobile batteries and the quantity of the second current transformer 41 are correlated with.Such as, from shown in Fig. 4, second The quantity of current transformer 41 is ten, and the total quantity of batteries of electric automobile is ten.The technology of this area Personnel should be appreciated that the quantity of the second current transformer 41 can equal to or more than one, batteries of electric automobile Quantity is also such.Assume that the charging capacity that batteries of electric automobile needs is 50kW and can be with Time charging batteries of electric automobile quantity be ten, then total charging capacity of system be 50kW × 10=500kW.As it has been described above, electric power is via the first current transformer 40 and the second current transformer in parallel 410 ..., 419 be provided to batteries of electric automobile, the total capacity of system can at the first current transformer and Second current transformer 410-419 distributes.Such as, the capacity of the first current transformer 40 can be equal to 450kW, And the capacity of each in the second current transformer 410-419 can be equal to 5kW.With charging capacity it is The conventional charging batteries of electric automobile station of 50kW × 10=500kW is compared, according to the utility model The total capacity of current transformer of embodiment be reduced to 500kW, less than the 1000kW of conventional current transformer Total capacity.Generally speaking, charging batteries of electric automobile system of the present utility model contributes in dimension Converter Capacity is reduced while holding charging capacity.It therefore reduces relate to the electronic of electric energy conversion The cost of automobile batteries charging system.
Fig. 5 shows the first current transformer according to embodiment of the present utility model and the second current transformer Combination.As it is shown in figure 5, the first current transformer 40 full-bridge, and it each brachium pontis 401, 402,403 it is respectively provided with two gate-controlled switch S1, S2, S3, S4, S5, S6 being connected in series；Can Control switch is used for controlling brachium pontis and certain the pattern (example set by second controller (not shown) As, trigger angle control, modulation index control etc.) communication, with by from external communication electricity The alternating voltage in source carries out rectification to provide the first DC voltage U1 of stable output.Based on IGBT Two power level voltage source type current transformers (VSC) be used as the first current transformer 40.
Second current transformer 410 may also be full-bridge, and its each brachium pontis 4100,4101,4102 It is respectively provided with two gate-controlled switch T1, T2, T3, T4, T5, T6 being connected in series；Gate-controlled switch Be used to control brachium pontis and set by the first controller 43 certain pattern (such as, trigger angle control, Modulation index control etc.) between commutation to provide plus or minus the second DC voltage U2 of stable output. Such as, line commutation current transformer (LCC) based on 6 pulse thyristor are used as the second unsteady flow Device 410-419.Current transformer based on IGCT is used as the second current transformer, is not only due to big electricity Stream ability, and because stop the reversing the current (unidirectional electrical of IGCT from batteries of electric automobile Properties of flow) and bigger DC voltage regulation ability.Thyristor current transformer can produce plus or minus DC voltage (depends on operator scheme: as rectifier or as inverter), it means that electronic Cell voltage in automobile can be higher or lower than the first DC voltage V1.As an alternative, similar merit Can also can by current transformer based on IGBT (such as, 2 quadrant H-bridge VSC current transformers, but need More (there is high current low voltage) semiconductor) realize.But, for step-down type dc/ DC transformer scheme (high voltage and high current), what is desired is that the cell voltage in electric automobile is total Being less than input direct voltage, otherwise due to diode the most arranged side by side, electric car charger will lose Go the control ability of DC charging current and oppositely charged by electric automobile.Step-down type dc/straight This shortcoming of stream current transformer scheme may result in bigger DC-DC ratio and (and then causes central authorities' unsteady flow Device and the higher dimensional of bigger step-down type dc/DC transformer) or there is repairing of more multiple semiconductor The topological structure changed, to stop reverse charging.Solve this problem, then new according to this practicality The embodiment of type, charging batteries of electric automobile system have the second current transformer 410 output and Diode between batteries of electric automobile, thus stop battery recharge electricity.
Assume that dc bus 44 needs stable 450V DC voltage and batteries of electric automobile needs 500V DC voltage produces the 100A DC current for quick charge.In order to meet charging need Asking, alternating voltage by the work of employing rectifier pattern and is converted into 450V by the first current transformer 40 DC voltage.Second current transformer 410 will use the work of rectifier pattern and be changed by alternating voltage Become 50V DC voltage.By using 5kW ac/dc current transformer to realize 50kW charging capacity. Rely on the driving signal changing the second current transformer 410 with the first controller 43, the second current transformer 410 Direct voltage output (the second DC voltage V2) charging capacity demand can be complied with.Such as, electronic The voltage of automobile batteries will increase during charging.Then, driving of the second current transformer 410 can be reduced Dynamic signal angle is to increase by the second DC voltage U2, thus maintains charging current.Work as batteries of electric automobile Voltage less than the voltage of dc bus 44 time, the second current transformer 410 can use inverter pattern to grasp Make (Trigger Angle is more than 90 degree), to meet electric automobile demand.When at least one electric automobile During charging, the reference voltage of the first current transformer 40 is the function of the voltage of batteries of electric automobile, such as The mean value of the voltage according to batteries of electric automobile.Further, for controlling the second current transformer 410-419 The first controller 43 can correspondingly regulate their output (the second DC voltage U2) and meet Required charge requirement (charging current).This results in advantages below: due to its two step voltage controls System and the wider array of input/output voltage ratio that causes, higher redundancy and batteries of electric automobile is filled The flexibility of the multiple batteries of electric automobile voltage level of electricity system；And due to it it The output of the reduction that the output stage uses controllable current transformer rather than diode rectifier and causes Harmonic wave.
(the VSC based on IGBT or based on IGCT additionally, distributed first and second current transformers LCC) stop direct fault current when can there is direct-current short circuit fault on dc bus 44, Thus protect batteries of electric automobile.
Preferably, in order to reduce the cost of transformer, a feasible scheme is that use is high-frequency Conversion transformer 420-429 and formation are female for the public exchange of internal high frequency rate of whole transformers Line, to reduce/weight/the cost that takes up room of transformer.This also contributes to reduce by IGCT unsteady flow Harmonic wave that device produces also limits the harmonic wave of charging batteries of electric automobile internal system.About the quality of power supply Problem, the first current transformer based on IGBT also can provide electric energy filters and/or AC network STATCOM function, this contributes to meeting electrical network interference standard.
Fig. 6 shows according to of the present utility model for charging to the battery of at least one electric automobile Another embodiment of system.Compare with the embodiment according to Fig. 4, for electronic at least one The system 6 of the battery charging of automobile also includes inverter 60.The input of inverter 60 is couple to directly First pole of stream bus 44 and second pole 44a, 44b, in order to receive at the first DC voltage U1 Input power and the first DC voltage U1 is converted into alternating voltage, and inverter 60 is defeated Go out and hold the input of each being couple in transformer 420-429 so that in transformer 420-429 Each provide alternating voltage, in transformer 420-429 each to the second current transformer In 410-419, corresponding one provides the alternating voltage changed.The capacity of inverter 60 is equal to complete The total capacity of portion the second current transformer 410-419.The output of the first current transformer 40 and the second current transformer The output of each in 410-419 is connected in series, thus provides first to the battery of electric automobile DC voltage U1 and the combination of the second DC voltage U2, therefore charge power passes through the first current transformer One passage of 40 is provided to batteries of electric automobile, and a part for charge power is at inverter 60 Upper concentration is also distributed between the second current transformer 410-419.Assume the charging needed for batteries of electric automobile Capacity is 50kW, and the quantity of the batteries of electric automobile that can simultaneously charge is ten, then system Total charging capacity is 50kW × 10=500kW.The capacity of the first current transformer 40 can be equal to 500kW, And the capacity of inverter 60 is equal to each in 50kW, and the second current transformer 410-419 Capacity can be equal to 5kW.The electronic vapour with the routine of the charging capacity with 50kW × 10=500kW Car Battery Charging Station compares, and is reduced to according to the total capacity of the current transformer of embodiment of the present utility model 600kW, less than the total capacity of the 1000kW of conventional current transformer.Electronic vapour of the present utility model Car batter-charghing system contributes to reducing Converter Capacity while maintaining charging capacity.Therefore, Reduce the cost of the charging batteries of electric automobile system relating to electric energy conversion.
Preferably, in order to reduce the cost of transformer, a feasible solution is to use high frequency The conversion transformer 420-429 of rate and high-frequency inverter 60, and formed for whole transformations The public ac bus of internal high frequency rate of device, to reduce/weight/the cost that takes up room of transformer.
As the alternative of embodiment of the present utility model, battery system or solar energy can be used Photovoltaic generating system or photovoltaic add the system of (plus) battery and replace the first current transformer 40.Pass through This is replaced, and contributes to reducing the electrically-charging equipment dependence to electrical network, reduces charging operations to electrical network Negative effect, and reduce the power absorbed from AC network.Therefore, charging electric vehicle facility Can implement in remote districts (such as, there is the roadside of light current net (or even without electrical network)).
Although have been based on some preferred embodiments to describe the utility model, but this area skill Art personnel should be appreciated that these embodiments are never limited in scope of the present utility model.Without departing substantially from this reality In the case of novel spirit and design, any variant of embodiment and amendment all have ability In the understanding of the personnel of territory general knowledge and technology, and therefore fall into and limited by claims In the range of fixed the utility model.

Claims (9)

1. for the system charged to the battery of at least one electric automobile, including:
First current transformer, is adapted to provide for the first DC voltage；
At least one transformer；
At least one second current transformer, each second current transformer is coupled to the output of corresponding at least one transformer described, to provide the second DC voltage；
First controller；And
Inverter, the input of described inverter is coupled to the output of described first current transformer, and the output of described inverter is coupled to the input of described transformer；
Wherein:
The output of described first current transformer is configured to be connected in series with the output of corresponding in the second current transformer, thus is respectively provided as described first DC voltage and the combination of described second DC voltage of charging voltage for multiple batteries of electric automobile；
Described first controller is suitable to the measured value of the charging current of the batteries of electric automobile in view of described second the provided charging voltage of current transformer to control described second current transformer, thus regulates described second DC voltage in response to batteries of electric automobile；
The input of described first current transformer can be coupled to external communication voltage source；
Described first current transformer provides described first DC voltage obtained by alternating voltage is carried out rectification to described inverter；And
Described second current transformer provides described second DC voltage by the alternating voltage from described transformer is carried out rectification.
The system charged to the battery of at least one electric automobile the most according to claim 1, it is characterised in that:
Described second current transformer is full-bridge, and each brachium pontis of described second current transformer has two gate-controlled switches being connected in series；And
The first controller for described second current transformer is suitable to set the driving signal to described second current transformer of described gate-controlled switch, to realize the second DC voltage of plus or minus.
The system charged to the battery of at least one electric automobile the most according to claim 1 and 2, it is characterised in that:
Described second current transformer is based on IGCT.
The system charged to the battery of at least one electric automobile the most according to claim 1 and 2, it is characterised in that:
Described second current transformer is based on IGBT.
The system charged to the battery of at least one electric automobile the most according to claim 4, it is characterised in that:
Described second current transformer also includes:
Diode, described diode is arranged between the output of described second current transformer and the battery of a corresponding electric automobile, in order to stop battery recharges electricity.
The system charged to the battery of at least one electric automobile the most according to claim 1 and 2, it is characterised in that:
The input of described first current transformer is adapted to couple to external communication voltage source with the input of each described second current transformer；
Wherein:
Described first current transformer is suitable to provide described first DC voltage by the alternating voltage from described external communication voltage source is carried out rectification；And
Described second current transformer is suitable to provide described second DC voltage by the alternating voltage from described external communication voltage source is carried out rectification.
The system charged to the battery of at least one electric automobile the most according to claim 1, it is characterised in that:
Described transformer and described inverter can operate at high frequencies.
The system charged to the battery of at least one electric automobile the most according to claim 1 and 2, also includes:
Second controller；
Wherein:
Described first current transformer is full-bridge, and each brachium pontis of described first current transformer has two gate-controlled switches being connected in series；And
Described second controller is suitable to control described first current transformer, in order to realize the stable output of described first DC voltage based on batteries of electric automobile voltage.
The system charged to the battery of at least one electric automobile the most according to claim 1 and 2, it is characterised in that:
Described first current transformer is added the system replacement of battery by battery system or solar photovoltaic generation system or photovoltaic.
CN201490000986.6U 2014-07-02 2014-07-02 System for a battery charges for giving at least one electric automobile Expired - Lifetime CN205565845U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107599884A (en) * 2017-10-30 2018-01-19 安徽和义新能源汽车充电设备有限公司 A kind of quick charger used for electric vehicle
CN112311242A (en) * 2019-08-01 2021-02-02 奥迪股份公司 Bidirectional direct current wall box for electric vehicle

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CN109995011B (en) * 2017-12-29 2024-04-16 冯良桓 Full-direct-current step-up-down voltage transmission and power transmission system and method
CN113422372A (en) * 2020-12-22 2021-09-21 北京信息科技大学 Integrated charging station for transformer substation and control method

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JP2592523B2 (en) * 1989-04-19 1997-03-19 富士電機株式会社 Power supply control device
DE29712483U1 (en) * 1997-07-09 1997-12-04 A.S.T. Leistungselektronik GmbH, 12489 Berlin Power supply unit for direct current, in particular for battery charging
CN2622904Y (en) * 2003-05-21 2004-06-30 付电明 High-power charging station
CN103107583A (en) * 2013-01-24 2013-05-15 中国电力科学研究院 Electric vehicle charging station main circuit topology structure

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Publication number Priority date Publication date Assignee Title
CN107599884A (en) * 2017-10-30 2018-01-19 安徽和义新能源汽车充电设备有限公司 A kind of quick charger used for electric vehicle
CN112311242A (en) * 2019-08-01 2021-02-02 奥迪股份公司 Bidirectional direct current wall box for electric vehicle

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