考虑充电站需求特性的电动汽车充电站与配电网联合规划方法

提出一种考虑充电站需求特性的电动汽车充电站和配电网联合规划方法。考虑环境温度、用户行为、交通网拓扑结构等因素，建立电动汽车充电站需求模型。进一步提出考虑充电站需求特性的电动汽车充电站与配电网联合规划模型，该模型综合考虑交通网和配电网耦合关系，以充电站与配电网的投资成本、运行成本、用户充电时间损耗成本最小为优化目标，满足交通网与配电网运行安全约束，求解该模型得到电动汽车充电站位置和容量的最优配置及配电网线路改建方案。选取重庆某主城区交通网与配电网为算例，验证了所提方法的有效性。仿真结果表明联合规划策略在满足电动汽车用户充电需求的同时降低了综合成本。

Joint Planning of Distribution Network with Electric Vehicle Charging Station Considering the Demand Characteristics of Charging Stations

Considering the demand characteristics of electric vehicle (EV) charging station, a joint planning method for distribution network and EV charging station is proposed. Taking such factors as environment temperature, users’ behavior and topologic structure of traffic network into account, a demand model of EV charging station is put forward. Further, a joint planning model for EV charging station and distribution network, in which the demand characteristics of EV charging station is taken into account, is established. In this model, the coupling relation between traffic network and distribution network is comprehensively considered, the minimized investment cost, the operating cost and the cost depletion of users’ charging time of the EV charging stations and distribution network are regarded as the optimization objectives which could satisfy the operational and security constraints, and solving this model both optimal allocations and capacities of EV charging stations as well as the reconstruction plan for distribution lines could be obtained. Selecting the traffic network and the distribution network in a certain urban district of Chongqing as the calculation example, the effectiveness of the established method is verified. Simulation results show that the proposed joint planning strategy can meet the charging demand of EV users meanwhile the composite cost is reduced.