Electric vehicle dual-scale charging guiding method and system considering users' satisfaction degree

Abstract

The invention relates to an electric vehicle dual-scale charging guiding method and system considering users' satisfaction degree. According to the method, electric vehicles are divided into an immediate charging cluster and a time-delay charging cluster according to charging time frame requirements from uses, and satisfaction degree functions in different scales are established; in the time scalelayer, a model is established by considering power grid factors and user charging cost factors, and a load curve is adjusted by guiding the start charging time of the electric vehicles; in the spacescale layer, a model is established by considering charging station factors and user traveling cost factors, and the charging station selection of each vehicle is planned, so that the charging stationoperation efficiency is improved; and electric vehicle charging behavior guiding for users on time and space scales is performed according to the solved optimal solution. Compared with the prior art,optimization and balance utilization of the load curve, the traffic condition and charging station equipment are realized while users' satisfaction degree is satisfied.

Description

technical field [0001] The present invention relates to the technical field of electric vehicles, in particular to a method and system for guiding electric vehicles with a space-time dual-scale charging in consideration of user satisfaction. Background technique [0002] With its advantages of zero emission, high energy efficiency, and low noise, electric vehicles have become one of the effective means to solve the problem of energy conservation and emission reduction in various countries. Its large-scale application is an inevitable trend of future social development. The charging behavior of electric vehicles connected to the grid has uncertainty in space and time. A large number of electric vehicles connected to the grid for disorderly charging will inevitably bring a new round of load growth to the grid, reduce power quality, and increase grid operation control Difficulty will also reduce the operational efficiency of the transportation network and increase the maintenan...

AI Technical Summary

Problems solved by technology

At present, the guidance control method for electric vehicle charging behavior mainly focuses on guidance on the time scale, but the enthusiasm of electric vehicle users to participate in scheduling is not high, and a good guidance effect has not been achieved.

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