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Main wiring system of electric automobile charging station system

A technology for electric vehicles and charging stations, applied to electric vehicles, battery circuit devices, current collectors, etc., can solve the problems of fast charging and high system redundancy, complex scheduling control of chargers, waste of resources, etc., to reduce equipment redundancy The effect of redundancy, low loss, and increased load rate

Inactive Publication Date: 2015-01-07
STATE GRID CORP OF CHINA +2
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AI Technical Summary

Problems solved by technology

[0004] In order to solve the above problems, the present invention proposes a main wiring system of electric vehicle charging station system. This system can avoid the complicated scheduling and control of chargers in the current distributed power supply mode, fast charging and high system redundancy, idle equipment, and waste of resources. serious phenomenon

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  • Main wiring system of electric automobile charging station system
  • Main wiring system of electric automobile charging station system
  • Main wiring system of electric automobile charging station system

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0032] Such as figure 1 As shown, a main wiring method of an electric vehicle charging station system is provided, including a three-phase transformer, an AC bus, a rectifier, a DC bus, a DC charging pile and an electric vehicle. The AC incoming line of the charging station is step-down and isolated by the three-phase transformer and then connected to the AC bus of the charging station. After being rectified by the rectifier, it is connected to the DC bus of the charging station. The DC charging pile is connected to the DC bus to provide electric energy for electric vehicles.

[0033] Such as figure 2 As shown in the figure, an AC bus connection method of an electric vehicle charging station is provided. The AC busbar adopts single-busbar section wiring, and the transformer is two three-winding step-down transformers. Each step-down transformer is co...

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Abstract

The invention discloses a main wiring system of an electric automobile charging station system. The main wiring system comprises a three-phase transformer, an alternating-current bus, a rectifier, a direct-current bus, a direct-current charging pile and an electric automobile. After voltage reducing and isolating are conducted on a charging station alternating-current inlet wire through the three-phase transformer, the charging station alternating-current inlet wire is connected with the charging station alternating-current bus which is connected with the rectifier, after rectification is conducted on the alternating-current bus through the rectifier, the alternating-current bus is connected into a charging station direct-current bus, the direct-current charging pile is connected with the direct-current bus, the direct-current charging pile is connected with the electric automobile, and electric energy is provided for the electric automobile. Due to the power supply structure that the rectifier is connected in a distributed mode, direct-current bus power supply is adopted, and a large-power direct-current solid-state switch is adopted, on the basis that the technological difficulty and the cost of the rectifier are not increased, the conflict between the equipment utilization rate and large-current charging is removed, and a solution is provided for fast charging.

Description

technical field [0001] The invention relates to a main wiring system of an electric vehicle charging station system. Background technique [0002] Due to the increasingly prominent issues of energy security and climate change, many countries in the world regard transportation electrification as an important measure to reduce oil dependence, greenhouse gas and pollutant emissions. my country also regards the development of electric vehicles as an important part of energy conservation and emission reduction and emerging strategic industries. With the continuous breakthroughs in key technologies such as batteries and motors and the rapid decline in costs, the prospects for the commercial application of electric vehicles are gradually clear. [0003] With the promotion and popularization of electric vehicles, electric vehicle charging stations are an important basic support system for electric vehicles and have a significant impact on the development of the electric vehicle ind...

Claims

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Application Information

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IPC IPC(8): H02J7/00H02J7/02
CPCH02J7/04
Inventor 黄德旭高玉明张华栋郭亮李岗苗文静李建祥刘海波
Owner STATE GRID CORP OF CHINA
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