中文摘要：

大规模电动汽车充电调度,需要同时考虑用户充电满意度和电网的安全经济运行。根据电动汽车充电分级管理的特点建立配网–充电站两层优化模型。在配网层制定充电站的充电计划,考虑配网安全约束,优化配网作为市场主体的运营经济性。在充电站层制定各电动汽车的充电策略,考虑车主的充电需求,最大化车主参与充电调度的满意度。采用NSGA-II算法求解配网层多目标优化问题,采用2阶段优化方法和Yalmip/Cplex求解充电站层整数规划问题。以含有DG和4个充电站的IEEE 33节点配网为例进行仿真,结果表明了所提模型和方法的有效性。

英文摘要：

It is necessary to consider user＇s charging satisfaction and security and economy of power grid in large-scale electric vehicle charging scheduling. A bi-level optimization model containing distribution grid level and charging station level is established based on hierarchical management feature of electric vehicle charging. Charging scheme of all charging stations is obtained while optimizing operation economy of distribution grid as the main market body in distribution grid level with operation constraints of the grid considered. Specific charging strategies for each EV are obtained considering individual constraints and user satisfaction in charging station level. NSGA-II algorithm is used to solve multi-objective optimization problem in distribution grid level. A two-stage optimization method and Yalmip/Cplex tool is used to solve integer programming problem in charging station level. Simulation results of IEEE33 distribution grid with DGs and 4 charging stations are provided to demonstrate effectiveness of the proposed model and methods.