Distribution network peak-shaving and flat-valley electric vehicle replacement station

A technology for electric vehicles, peak shaving and flat valleys, applied in electric vehicles, battery circuit devices, current collectors, etc., can solve the problems of restricting the construction of energy storage stations, increasing investment costs, etc., and achieve the effect of rational use of resources

Inactive Publication Date: 2011-12-21
罗俊亚 +2
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in recent years, it has become a development trend to use batteries for energy storage to achieve peak shaving and flat valley. In order to effectively reduce the line loss in the process, it is most effectiv

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  • Distribution network peak-shaving and flat-valley electric vehicle replacement station
  • Distribution network peak-shaving and flat-valley electric vehicle replacement station

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[0014] The present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0015] Such as figure 1 As shown, the present invention includes a 10KV AC bus, one section of DC bus 3, two sections of DC bus 19, a converter device, an energy storage device 5, an electric vehicle charging device 8, a solar and wind power supply device 11, a power supply device for a substation and a substation Monitoring device 18, said converter device is composed of multiple converter transformer 1, converter 2 and rectifier / inverter intelligent transfer switch 4. The primary side of multiple converter transformer 1 is connected to the 10kV AC bus, and the secondary side It is connected to the converter 2. The DC side of the converter 2 is connected in parallel with a DC bus 3, and then connected to the DC bus 19 through the rectifier / inverter intelligent transfer switch 4. The energy storage device 5 Consists of a DC / DC intelligent charging and...

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Abstract

The invention discloses a peak-shaving and valley-shaving electric vehicle replacement station for a power distribution network. It includes 10kV AC busbar, one-stage DC busbar, two-stage DC busbar, converter device, energy storage device, electric vehicle charging device, solar and wind energy power supply device, power station power supply device and station monitoring device. The swap station is equipped with a large-capacity energy storage device, which is charged during the low-peak period of electricity consumption, and the stored electric energy is fed back to the grid during the peak period of electricity consumption, so as to achieve the function of peak-shaving and flat-valley; Space, configure a certain capacity of solar and wind power supply devices, and charge the energy storage battery and electric vehicle battery through the DC bus. While undertaking the charging function of the electric vehicle battery pack, the present invention also provides an energy storage device for the electric power system, which is convenient for the distribution network to shave peaks and flat valleys, and has low system loss. When building an electric vehicle replacement station, there is no need to expand the power system, and the power quality is high. .

Description

technical field [0001] The invention relates to an electric vehicle exchange station, in particular to an electric vehicle exchange station capable of performing peak-shaving and valley-shaving for a power distribution network. Background technique [0002] In the face of the fossil energy crisis and the huge pressure on the environment, how to reduce the demand for oil for automobiles, and how to develop electric vehicles and widely apply them to people's livelihood are the focus of governments of all countries. Electric vehicles are all or part of the vehicles that use electricity as the power source of the drive system. Compared with traditional vehicles powered by gasoline combustion, electric vehicles have obvious advantages in environmental protection, cleanliness, and energy saving. Consumer demand is more in line with the industrial and energy development strategies of various countries, and it will be the main means of transportation in the future. [0003] On the ...

Claims

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Application Information

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IPC IPC(8): H02J7/00H02J3/32
Inventor 罗俊亚谢菲张润泽
Owner 罗俊亚
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