1. Anhui New Energy Utilization and Energy Saving Laboratory(Hefei University of Technology), Hefei 230009, China; 2. State Grid Zhejiang Electric Power Company, Hangzhou 310000, China

Currently, a lot of distributed generators and household electric vehicles are connected to the grid. The increase in capacity and the variety of loads have made it impossible to support the new load demand by the original microgrid. It is imperative to establish a new microgrid system that can meet a variety of needs. Taking into account the comprehensive constraints and the orderly charging, this paper develops a multi-objective optimal planning model in AC/DC hybrid microgrid system with wind turbine generators, photovoltaic generation, energy storage battery and electric vehicle. In order to reduce the cost of configuration and the load fluctuation, CPLEX optimal programming has been used to solve the objective function. The case study compares the difference between the new AC/DC hybrid microgrid and the original microgrid. A study is made on the rationality of electric vehicle orderly charging as well as the influences of interaction between the two types of microcrids on optimized configuration. The results verify the effectiveness and feasibility of the approach proposed.