Site Selection and Capacity Determination of EV Charging Station to Balance Interests of Different Entities

In allusion to the site selection and capacity determination of the electric vehicle (abbr. EV) charging station, a multi-agent economic benefit model for distribution network, charging station and users under multi-scenarios was proposed. Firstly, by means of comparing the operation economy and load loss cost of distribution network under normal operating environment and under extreme weather conditions, the site pre-selection of the site for EV charging station was performed. Secondly, taking the preselected scheme of the charging station and the traffic flow distribution difference on holidays and working days as the basis and overall considering the economy of the charging station and the economy at the user side, the site and the capacity of the charging station were optimized. The local optimization effect was enhanced by joint utilizing particle swarm optimization and Voronoi diagram, so the result of site selection and capacity determination of EV charging station were further optimized. Finally, based on an actual computing example of a certain region the simulation analysis was conducted. Simulation results show that the proposed planning scheme of EV charging station is feasible and effective.