CN204517473U - The charging system for electric automobile that grid cut-off still normally works - Google Patents

The charging system for electric automobile that grid cut-off still normally works Download PDF

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Publication number
CN204517473U
CN204517473U CN201520276921.0U CN201520276921U CN204517473U CN 204517473 U CN204517473 U CN 204517473U CN 201520276921 U CN201520276921 U CN 201520276921U CN 204517473 U CN204517473 U CN 204517473U
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China
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unit
charging
direct current
bus
energy conversion
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Application number
CN201520276921.0U
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Inventor
包重华
丁峰
林爱兵
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DONGTAI POWER SUPPLY Co OF JIANGSU ELECTRIC POWER Co
JIANGSU MAOYUAN ELECTRIC Co Ltd
State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
Original Assignee
DONGTAI POWER SUPPLY Co OF JIANGSU ELECTRIC POWER Co
JIANGSU MAOYUAN ELECTRIC Co Ltd
State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
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Priority to CN201520276921.0U priority Critical patent/CN204517473U/en
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Abstract

The utility model discloses a kind of charging system for electric automobile comprising three-phase transformer, centralized electric energy conversion unit, a m direct current convert charging unit, a m battery case, supervisory control system DC/DC converting unit, charging station monitoring system, a n DC/DC converting unit, a n batteries to store energy unit; The utility model uses electrical network electric energy for charging electric vehicle when electrical network has electric, use storage battery for charging electric vehicle when grid cut-off, and the power supply of charging station monitoring system is also adopt batteries to store energy unit to power, so the utility model charging system still can use in grid cut-off situation.

Description

The charging system for electric automobile that grid cut-off still normally works
Technical field
The utility model relates to the charging system for electric automobile that a kind of grid cut-off still normally works.
Background technology
Electric automobile take vehicle power as power, with the vehicles of motor as a kind of new green environment protection of power drive wheels travel.The vehicle power of electric automobile generally carries out serial or parallel connection by plurality of groups of storage batteries and is arranged in a combination, and improves the power supply capacity of storage battery with this.It is power that electric automobile refers to vehicle power, drives wheels travel with motor, meets the vehicle of road traffic, safety regulations requirements.Due to less relative to orthodox car to environmental impact, its prospect is extensively had an optimistic view of.
The composition of electric automobile comprises: the mechanical system such as driven by power, control system, actuating force transmission completes the equipment etc. of assigned tasks.Driven by power, control system are the cores of electric automobile, are also the maximum differences being different from internal-combustion engines vehicle.Driven by power and control system are made up of the speed-regulating control device etc. of drive motor, power supply and motor.Other devices of electric automobile are basic identical with internal-combustion engines vehicle.The drive motor that power supply is electric automobile provides electric energy, and the electric energy conversion of power supply is mechanical energy by motor.Most widely used power supply is lead acid accumulator, but along with the development of electric vehicle engineering, lead acid accumulator due to energy low, charging rate is slow, and the life-span is short, gradually replace by other storage batterys.The power supply developed mainly contains sodium-sulphur battery, nickel-cadmium cell, lithium battery, fuel cell etc., and the application of these novel power supplies, the development for electric automobile opens wide prospect.The effect of drive motor is mechanical energy by the electric energy conversion of power supply, by transmission device or direct drive of wheel and equipment.Electric automobile charging station refers to the website into charging electric vehicle, similar to present gas station.Along with low-carbon economy becomes the theme of China's economic development, electric automobile is as new forms of energy strategy and the important component part of intelligent grid, one of and the emerging strategic industries determined of State Council, the emphasis of Chinese Automobile Industry ' and energy industry development from now on will be become.But ev industry is a systematic engineering of business, electric automobile charging station is then one of key link, must realize jointly developing in harmony with electric automobile other field.
But existing electric automobile charging station major part is all use electrical network electric energy, once grid cut-off charging station just cannot use, therefore research and develop the charging system for electric automobile that grid cut-off still normally works necessary.
Utility model content
The purpose of this utility model is the charging system for electric automobile providing a kind of grid cut-off still normally to work.
In order to realize above object, the technical solution of the utility model is as follows: the charging system for electric automobile that grid cut-off still normally works, and it is characterized in that: comprise three-phase transformer, centralized electric energy conversion unit, a m direct current convert charging unit, a m battery case, supervisory control system DC/DC converting unit, charging station monitoring system, a n DC/DC converting unit, a n batteries to store energy unit;
The high-pressure side input of described three-phase transformer connects three-phase alternating current electric wire, and the low-pressure side output of three-phase transformer connects the input of centralized electric energy conversion unit, and the output of centralized electric energy conversion unit connects DC bus;
The input of described direct current convert charging unit connects DC bus, the output electrical connection battery case of direct current convert charging unit;
Described centralized electric energy conversion unit can also by the back electrical energy of DC bus to three-phase transformer;
Described direct current convert charging unit can also by the back electrical energy of battery storage to DC bus;
Described charging station monitoring system domination set Chinese style electric energy conversion unit and the output voltage size of direct current convert charging unit and monitor the working condition of centralized electric energy conversion unit and direct current convert charging unit;
DC bus is by the charging of DC/DC converting unit accumulators energy-storage units, and described DC/DC converting unit can also by the back electrical energy of batteries to store energy unit to DC bus;
The input of batteries to store energy unit electrical connection supervisory control system DC/DC converting unit, the output of supervisory control system DC/DC converting unit is that charging station monitoring system is powered.
Be more preferably technical scheme, the output voltage of described centralized electric energy conversion unit is greater than 860V.
Be more preferably technical scheme, the controller of described charging station monitoring system adopts TMS320C6713.
Compared with prior art, the beneficial effects of the utility model: use electrical network electric energy for charging electric vehicle when electrical network has electric, use storage battery for charging electric vehicle when grid cut-off, and the power supply of charging station monitoring system is also adopt batteries to store energy unit to power, so the utility model charging system still can use in grid cut-off situation.
Accompanying drawing explanation
Fig. 1 is the utility model principle block diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
The charging system for electric automobile that grid cut-off still normally works, comprises three-phase transformer, centralized electric energy conversion unit, 28 direct current convert charging unit, 28 battery cases, supervisory control system DC/DC converting unit, charging station monitoring system, 14 DC/DC converting units, 14 batteries to store energy unit;
The high-pressure side input of three-phase transformer connects three-phase alternating current electric wire, and the low-pressure side output of three-phase transformer connects the input of centralized electric energy conversion unit, and the output of centralized electric energy conversion unit connects DC bus; The input of direct current convert charging unit connects DC bus, the output electrical connection battery case of direct current convert charging unit; Centralized electric energy conversion unit can also by the back electrical energy of DC bus to three-phase transformer; Direct current convert charging unit can also by the back electrical energy of battery storage to DC bus; The output voltage size of charging station monitoring system domination set Chinese style electric energy conversion unit and direct current convert charging unit and monitor the working condition of centralized electric energy conversion unit and direct current convert charging unit; DC bus is by the charging of DC/DC converting unit accumulators energy-storage units, and DC/DC converting unit can also by the back electrical energy of batteries to store energy unit to DC bus; The input of batteries to store energy unit electrical connection supervisory control system DC/DC converting unit, the output of supervisory control system DC/DC converting unit is that charging station monitoring system is powered.
Wherein, the output voltage 880V of centralized electric energy conversion unit; The controller of charging station monitoring system adopts TMS320C6713.
The TMS320C6713DSP C6000 series DSP chip that to be American TI released in 1997 a, it is 32 high-speed floating point type DSP, and clock highest frequency is 300MHz.TMS320C6713 main feature has: (1) architecture adopts very long instruction word (VLIW) structure, and single instrction word length is 32, and have 8 instructions in instruction bag, total word length reaches 256.The functional unit performing instruction distributes when compiling, and by special instruction distribution module when program is run, the instruction bag of each 256 can be assigned to 8 processing units simultaneously, and be run by 8 unit simultaneously.Its maximum processing capability can reach 2400MIPS.(2) adopt level 2 buffering process, the program buffer L1P that 4KByte directly mates, the data buffering L1D that 4KByte can mate, 256KByteL2 additionally mates internal memory.32 external memory interfaces, can seamless link SRAM, EPROM, Flash, SBSRAM and SDRAM.(3) abundant peripheral hardware, comprise DMA, EDMA, support to participate in transmit data in the address space allowed without the need to CPU, expansion bus, has the function such as main frame mouth and I/O port operation, multichannel buffered serial port, it can be communicated with multiple serial communication interface by configuration, two 32 general purpose timers etc.
Operation principle of the present utility model and using method: use electrical network electric energy for charging electric vehicle when electrical network has electric, thus the charging times decreasing batteries to store energy unit extends the life-span of batteries to store energy unit, use batteries to store energy unit for charging electric vehicle when grid cut-off, power supply due to charging station monitoring system is also adopt batteries to store energy unit to power, so the utility model charging system still can use in grid cut-off situation.

Claims (3)

1. the charging system for electric automobile that still normally works of grid cut-off, is characterized in that: comprise three-phase transformer, centralized electric energy conversion unit, a m direct current convert charging unit, a m battery case, supervisory control system DC/DC converting unit, charging station monitoring system, a n DC/DC converting unit, a n batteries to store energy unit;
The high-pressure side input of described three-phase transformer connects three-phase alternating current electric wire, and the low-pressure side output of three-phase transformer connects the input of centralized electric energy conversion unit, and the output of centralized electric energy conversion unit connects DC bus;
The input of described direct current convert charging unit connects DC bus, the output electrical connection battery case of direct current convert charging unit;
Described centralized electric energy conversion unit can also by the back electrical energy of DC bus to three-phase transformer;
Described direct current convert charging unit can also by the back electrical energy of battery storage to DC bus;
Described charging station monitoring system domination set Chinese style electric energy conversion unit and the output voltage size of direct current convert charging unit and monitor the working condition of centralized electric energy conversion unit and direct current convert charging unit;
DC bus is by the charging of DC/DC converting unit accumulators energy-storage units, and described DC/DC converting unit can also by the back electrical energy of batteries to store energy unit to DC bus;
The input of batteries to store energy unit electrical connection supervisory control system DC/DC converting unit, the output of supervisory control system DC/DC converting unit is that charging station monitoring system is powered.
2. the charging system for electric automobile that still normally works of grid cut-off according to claim 1, is characterized in that: the output voltage of described centralized electric energy conversion unit is greater than 860V.
3. the charging system for electric automobile that still normally works of grid cut-off according to claim 1, is characterized in that: the controller of described charging station monitoring system adopts TMS320C6713.
CN201520276921.0U 2015-04-30 2015-04-30 The charging system for electric automobile that grid cut-off still normally works Active CN204517473U (en)

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CN201520276921.0U CN204517473U (en) 2015-04-30 2015-04-30 The charging system for electric automobile that grid cut-off still normally works

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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110901471A (en) * 2019-11-19 2020-03-24 广州东方电科自动化有限公司 Rapidly-extensible electric automobile flexible direct-current charging system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110901471A (en) * 2019-11-19 2020-03-24 广州东方电科自动化有限公司 Rapidly-extensible electric automobile flexible direct-current charging system

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