CN204517472U - Charging system for electric automobile containing multiple centralized device for converting electric energy - Google Patents
Charging system for electric automobile containing multiple centralized device for converting electric energy Download PDFInfo
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- CN204517472U CN204517472U CN201520276370.8U CN201520276370U CN204517472U CN 204517472 U CN204517472 U CN 204517472U CN 201520276370 U CN201520276370 U CN 201520276370U CN 204517472 U CN204517472 U CN 204517472U
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
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- 238000002485 combustion reaction Methods 0.000 description 2
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- BNOODXBBXFZASF-UHFFFAOYSA-N [Na].[S] Chemical compound [Na].[S] BNOODXBBXFZASF-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a kind of charging system for electric automobile containing multiple centralized device for converting electric energy, comprise three-phase transformer, n centralized electric energy conversion unit, a n DC bus, a m charging case; M >=n; The input of three-phase transformer connects electrical network, and the output of three-phase transformer connects the input of all centralized electric energy conversion unit; The output of each centralized electric energy conversion unit connects a DC bus; Each DC bus at least connects a charging case; N DC bus connects m charging case altogether.This system need not use that it is enough DC/DC convert charging device, so Systematical control is simpler.
Description
Technical field
The utility model relates to a kind of charging system for electric automobile containing multiple centralized device for converting electric energy.
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.
Existing electric automobile charging station major part is given rechargeable battery powered by AC/DC convert charging device, the charging voltage size of each AC/DC convert charging device is controlled by controller, so occurred that the centralized device for converting electric energy of employing flows to DC bus by disposable for electrical network electric energy, then DC bus connects multiple DC/DC conversion equipment, be respectively charge in batteries, such charging station system is still more complicated.
Utility model content
The purpose of this utility model is to provide a kind of charging system for electric automobile containing multiple centralized device for converting electric energy, this system need not use that it is enough DC/DC convert charging device, so Systematical control is simpler.
In order to realize above object, the technical solution of the utility model is as follows: the charging system for electric automobile containing multiple centralized device for converting electric energy, is characterized in that: comprise three-phase transformer, n centralized electric energy conversion unit, a n DC bus, a m charging case; M >=n;
The input of three-phase transformer connects electrical network, and the output of three-phase transformer connects the input of all centralized electric energy conversion unit;
The output of each centralized electric energy conversion unit connects a DC bus;
Each DC bus at least connects a charging case;
N DC bus connects m charging case altogether.
More preferably scheme, n=3, m=15, each DC bus connects 5 charging cases.
Compared with prior art, the beneficial effects of the utility model: this system need not use that it is enough DC/DC convert charging device, so Systematical control is simpler; Prior art be all employing centralized electric energy conversion unit by power delivery to DC bus, then DC bus has been hung a lot of DC/DC convert charging unit, this Systematical control is extremely complicated, and the charging case of existing charging station is main also with regard to several model, so can technical solutions of the utility model be adopted completely, be articulated to by charging case identical for model on same DC bus, such control system is just much simple.
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.
Embodiment: the charging system for electric automobile containing multiple centralized device for converting electric energy, comprises three-phase transformer, 3 centralized electric energy conversion unit, 3 DC buss, 15 charging cases; The input of three-phase transformer connects electrical network, and the output of three-phase transformer connects the input of all centralized electric energy conversion unit; The output of each centralized electric energy conversion unit connects a DC bus; Each DC bus connects 5 charging cases; 3 DC buss have connection 15 charging cases altogether.
Wherein, the controller of centralized electric energy conversion unit adopts MSP430 single-chip microcomputer.MSP430 series monolithic is the single-chip microcomputer of 16, have employed Reduced Instruction Set Computer Architecture, has abundant addressing system, succinct 27 core instructions and a large amount of dummy instructions; In a large amount of registers and sheet, data storage all can participate in multiple computing; Table look-up efficiently in addition processing instruction, these features ensure that and can develop high efficiency source program.Why MSP430 single-chip microcomputer has ultralow power consumption, is because it has its distinctive feature in the supply voltage reducing chip and flexible and controlled operation clock.
First, what the supply voltage of MSP430 series monolithic adopted is 1.8-3.6V voltage.When it thus can be made to run under the Clock of 1MHz, the minimum meeting of electric current of chip is at 165 μ about A, and the lowest power consumption under RAM Holdover mode only has 0.1 μ A.Secondly, unique Clock System Design.The clock system that two different is had: fundamental clock system, FLL (FLL and FLL+) clock system and DCO digital oscillator clock system in MSP430 series.Only can use a crystal oscillator, also can use two crystal oscillators.The clock needed for CPU and each function is produced by system clock system.And these clocks under the control of instruction, can open and close, thus realize the control to overall power consumption.
Operation principle: the DC/DC convert charging device that need not use that it is enough, so Systematical control is simpler; Prior art be all employing centralized electric energy conversion unit by power delivery to DC bus, then DC bus has been hung a lot of DC/DC convert charging unit, this Systematical control is extremely complicated, and the charging case of existing charging station is main also with regard to several model, so can technical solutions of the utility model be adopted completely, be articulated to by charging case identical for model on same DC bus, such control system is just much simple.
Claims (2)
1. the charging system for electric automobile containing multiple centralized device for converting electric energy, is characterized in that: comprise three-phase transformer, n centralized electric energy conversion unit, a n DC bus, a m charging case; M >=n;
The input of three-phase transformer connects electrical network, and the output of three-phase transformer connects the input of all centralized electric energy conversion unit;
The output of each centralized electric energy conversion unit connects a DC bus;
Each DC bus at least connects a charging case;
N DC bus connects m charging case altogether.
2. the charging system for electric automobile containing multiple centralized device for converting electric energy according to claim 1, is characterized in that: n=3, m=15, and each DC bus connects 5 charging cases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520276370.8U CN204517472U (en) | 2015-04-30 | 2015-04-30 | Charging system for electric automobile containing multiple centralized device for converting electric energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520276370.8U CN204517472U (en) | 2015-04-30 | 2015-04-30 | Charging system for electric automobile containing multiple centralized device for converting electric energy |
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| Publication Number | Publication Date |
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| CN204517472U true CN204517472U (en) | 2015-07-29 |
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| CN201520276370.8U Active CN204517472U (en) | 2015-04-30 | 2015-04-30 | Charging system for electric automobile containing multiple centralized device for converting electric energy |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106899266A (en) * | 2017-03-01 | 2017-06-27 | 江苏国电铁塔有限公司 | The bus-powered network of photovoltaic tracking support array and dispatching algorithm |
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2015
- 2015-04-30 CN CN201520276370.8U patent/CN204517472U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106899266A (en) * | 2017-03-01 | 2017-06-27 | 江苏国电铁塔有限公司 | The bus-powered network of photovoltaic tracking support array and dispatching algorithm |
| CN106899266B (en) * | 2017-03-01 | 2018-07-20 | 江苏国电新能源装备有限公司 | The bus-powered network of photovoltaic tracking support array and dispatching algorithm |
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