A method and system for charging an electric vehicle

Abstract

The present invention provides an electric vehicle charging method and system, wherein the method includes: obtaining information on the node position of the electric vehicle in the current travel chain and the first state of charge information at the current moment; according to the first state of charge information and the current The position information of the node determines the possible decision-making behavior of each other node in the travel chain of the electric vehicle; obtains the second state of charge information of the charging pile at the current moment, and determines the charge of the charging pile according to the second state of charge information and possible decision-making behavior. Electric state transition probability: According to the state of charge transition probability of the charging pile, the optimal decision-making behavior of the electric vehicle is determined based on the minimum peak-valley difference of the total load curve of the distribution network, and the charging of the electric vehicle is controlled according to the optimal decision-making behavior. This method can optimize the distribution network load curve.

Description

technical field [0001] The invention relates to the technical field of charging, in particular to an electric vehicle charging method and system. Background technique [0002] Electric vehicle (EV) is a zero-emission or low-emission green transportation tool. Its large-scale promotion can effectively alleviate the increasingly severe social problems such as energy crisis and environmental pollution, so it has attracted widespread attention from all walks of life. The interaction between electric vehicle and grid (Vehicle to Grid, V2G) refers to the optimal management of charging and discharging behavior of electric vehicles through reasonable strategies and advanced communication means. [0003] In the prior art, most of the research on the charging and discharging behavior of electric vehicles is based on the assumed charging period and charging method, ignoring the randomness of the state of charge of electric vehicles in time and space, and less consideration is given to ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a charging method and system for electric vehicles to solve the defect that the research on charging and discharging of electric vehicles in the prior art does not consider the influence of electric vehicle users and node charging piles

Images