Energy management method of electric vehicle charging station

Abstract

The invention discloses an energy management method of an electric vehicle charging station, particularly relates to the technical field of new energy charging stations, and aims to maintain normal charging through a power grid on the premise that both a charging pile and an electric vehicle support bidirectional charging, and to realize energy management through cooperation of the charging pile based on bidirectional charging and the electric vehicle. When a plurality of electric vehicles are charged at the same time and the total charging power of the charging station cannot meet the requirements of all the electric vehicles, high-power quick charging is carried out on a requesting vehicle through electric quantity feedback of a plurality of service vehicles and electric power supply of a power grid; the service vehicles can obtain corresponding service fees for price reduction after being quickly and fully charged, charging is started through a power grid, and meanwhile, comprehensive differentiation charging is performed according to the service vehicles and the request vehicles, so that the batteries of the in-station electric vehicles are fully utilized, the in-station electric vehicles serve as virtual energy storage, and the charging efficiency of the in-station electric vehicles is improved. And the problem of quick charging of the electric automobile is solved with low cost.

Description

technical field [0001] The invention relates to the technical field of new energy charging stations, and more specifically, the invention relates to an energy management method for electric vehicle charging stations. Background technique [0002] As cities have higher and higher environmental protection requirements for automobiles, the penetration rate of pure electric new energy electric vehicles in China is getting higher and higher; in order to solve the mileage anxiety of electric vehicles, the charging power is also getting higher and higher. The contradiction between the ensuing charging demand and the limited power distribution capacity of the grid is also growing. [0003] In order to solve the problem of fast charging of electric vehicles, it is necessary to solve the problem of the promotion of high-power fast charging piles and the problem of power distribution capacity of charging stations. Among them, the power distribution capacity of the charging station inv...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an energy management method for an electric vehicle charging station. The energy storage system stores a certain amount of electricity for short-term high-power charging, but the construction cost of the energy storage system is high, and it needs to occupy a certain area, and it faces difficulties in the promotion and implementation of large areas

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