Optimizing Strategy of Spatial Orderly Charging for EVs Based on Complex Network Theory

In the traditional methods of studying the orderly charging of electric vehicles, the interaction and integrity between the EVs load and the distribution network are often neglected. To solve this problem, firstly, based on complex network theory, a kind of spatial orderly charging model for EVs is proposed. Considering both the grid performance and the user requirement, EVs choose the optimum charging station. Secondly, the statistical characteristics of the orderly charging model are defined. The effectiveness of the proposed optimization strategy is verified from network topology and network electrical characteristics. Finally, the simulation results of ieee14-node system show that, compared with the disorderly charging scenario, the proposed charging optimization strategy can balance the power flow distribution of the distribution network and reduce the loss of active power network. It is conducive to the safety, stability and economic operation of the distribution network.