Multi-bus type charging pile power distribution device and control method thereof

Abstract

The invention provides a multi-bus type charging pile power distribution device and a control method thereof. The device comprises a plurality of power modules, a plurality of charging piles with the same charging voltage, a plurality of switches with the same voltage drop and five common buses, wherein the maximum power of each charging pile is the same, and the number of the power modules is the same as the number of the charging piles; a plurality of switches for connecting the power module, the charging pile and the common bus form a multi-bus type switch matrix, the charging controller obtains a vehicle to-be-charged power demand and a vehicle BMS according to a third party, and a given flexible DC charging pile strategy is adopted after comprehensive information calculation; output control of the power module group and switching of the multi-bus type matrix are carried out. According to the device, the charging equipment utilization rate, energy conversion efficiency and the vehicle compatibility can be improved, and the super-power requirement of future battery development can be met.

Description

technical field [0001] The invention relates to the technical field of electric vehicle charging, in particular to a power distribution device and a control method for a multi-combustion bus-type charging stack. Background technique [0002] With the progress of society and the enhancement of environmental protection awareness, electric vehicles are gradually favored because they are powered by vehicle-mounted power supplies and can solve the problems of exhaust emissions from fuel vehicles, pollution of the environment, and high energy consumption. And the charging problem of electric vehicle is the problem that people pay close attention to very much, and it is related to popularization and promotion of electric vehicle. With the rapid development of charging facilities, the current charging technology has more and more new requirements. The current development of flexible charging technology mainly has the following three solutions: GGFW flexible charging technology for ...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a multi-combustion bus-type charging stack power distribution device and its control method, which solves the problems of low equipment utilization, low energy conversion efficiency, and poor vehicle compatibility in the prior art

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