There are still deficiencies in the research on the optimal control strategy of electric vehicle (EV) charging process. In order to perfect this hot issue, this paper introduces the excitation methods for EV charging process in community considering the degree of user response. The mathematical models of charging process of both single EV and EV cluster are firstly established. Then the effect of time-of-use (TOU) power price excitation method is mathematically analyzed based on genetic algorithm. At last, the TOU power price excitation method considering degree of user response is presented. The mainly used method to get the solution is fuzzy membership degree algorithm. Comparisons are made to validate the method proposed in this paper.

Charging process,electric vehicle,time-of-use power price,user response,fuzzy membership degree