网格分时电价下电动汽车有序充电策略

Orderly Charging Strategy for Electric Vehicles under Grid Time-sharing Tariff

随着电动汽车行业的发展,大量电动汽车无序充电对城市配电网安全稳定运行产生不良影响。因此,为了解决城市内电动汽车无序充电对配网安全运行和经济性的不利影响,文章提出一种基于网格分时电价的电动汽车有序充电策略。首先,分析网格分时电价和电动汽车车主需求响应行为的关系;其次,在网格分时电价对车主充电行为影响的基础上,根据网格划分和负荷预测结果建立电动汽车有序充电模型;最后,通过案例仿真进行验证。仿真结果表明,该策略能够实现供需两侧双赢,减少配网峰谷差的同时兼顾车主的充电经济性。

With the development of the electric vehicle industry,the disorderly charging of a large number of electric ve‐hicles has a negative impact on the safe and stable operation of the urban distribution network.Therefore,in order to solve the adverse impact of disorderly charging of electric vehicles on the safe operation and economy of distribution network in cities,the author proposes an orderly charging strategy of electric vehicles based on grid time-of-use price.Firstly,the relationship between grid TOU price and the demand response behavior of EV owners is analyzed;Secondly,based on the influence of grid TOU price on the charging behavior of vehicle owners,the orderly charging model of electric vehicles is established according to the results of grid division and load forecasting;Finally,it is verified by case simulation.The simulation results show that the strategy can achieve a win-win situation between supply and demand,reduce the peak valley difference of distribution network and take into account the charging economy of vehicle owners.