Group control charging system and matrix switch module

Abstract

The invention relates to a group control charging system and a matrix switch module, wherein the charging system includes Ncharging machine modules, N matrix switch modules and M charging pile modules, N>=2,M>=2. Each matrix switch module comprises an input port and M output ports, the input port of each matrix switch module is connected with a corresponding charger module, each output port is connected with each charging pile module in one-to-one correspondence, every matrix switch module includes M switch branches, and the switch branches are provided with a semiconductor device switch tubeand a switch, one end of each switch branch is connected with the input port of the matrix switch module, and the other end of each switch branch is connected with the output port of the matrix switchmodule one by one. According to the invention, a semiconductor device switch is serially arranged in each switch branch, zero current opening and zero voltage turn-off of the output loop are realizedby controlling the time sequence of the semiconductor device switch. The switch in the switch branch is effectively protected, the service life of the switch is prolonged, and the charging reliability is improved.

Description

technical field [0001] The invention relates to a group control charging system and a matrix switch module, belonging to the technical field of electric vehicles. Background technique [0002] As energy and the environment become the current focus of the world, the country actively responds to the call of the international community for energy conservation and emission reduction, and the development of new energy electric vehicles that are more energy-saving and environmentally friendly is getting faster and faster, and the electric vehicle industry has been vigorously developed. At the same time, electric vehicles The industry is also an urgent need for the structural adjustment of the automobile industry and the development of China's automobile industry. With the vigorous promotion of electric vehicles, fast charging is the main development trend of the future power supply mode of electric vehicles. In order to realize the rapid power supply of electric vehicles, the pow...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a group control charging system and a matrix switch module, which is used to solve the problem that the short life of the DC high voltage relay in the existing group control charging system affects the charging reliability

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