Evaluation and optimization of Electric Vehicle Load Acceptance Capacity of Distribution Network

In order to solve the mismatch between the construction of distribution network and the popularization of EV, an evaluation method of the limit number of EV accepted by distribution network is proposed based on the operational risk, so as to evaluate the acceptance capacity of distribution network. Secondly, a method of distribution network reconstruction and closed-loop operation to improve the acceptance capacity of distribution network is proposed. Then the comprehensive goal of orderly charging is established. Based on which the model of EV charging period transfer probability is established to guide users to stagger charging and improve the acceptance capacity of distribution network. Finally, the simulation verification is given through the analysis of an example.