基于电动汽车接入充电的配电网充电负荷需求模拟研究

Research on simulation of charging load demand of distribution network based on EV charging

针对传统配电网充电负荷需求模拟方法造成网络负荷损耗量较大的问题,提出一种基于电动汽车接入充电的配电网充电负荷需求模拟方法。首先统计各区域用电负荷计算值,综合用电规划裕度和用电功率,计算配电网电变压器总容量参数,然后分析电动汽车接入配电网充电设计的电网侧利益方,建立有序充电目标函数,最后引用正态分布,控制充电负荷的随机性,实现配电网充电负荷需求的模拟。仿真实验结果表明,与两种传统配电网充电负荷需求模拟方法相比,所设计的模拟方法网络负荷损耗量最小,有利于电动汽车接入充电的配电网充电的实际应用。

In view of the problem that the traditional simulation method of distribution network charging load demand has too much network load loss,a simulation method of distribution network charging load demand based on EV access charging is proposed.Firstly,the calculation value of electric load in each area is counted,the planning margin and power of electric power are integrated,and the total capacity parameters of distribution network transformer are calculated.Then,the stakeholders of charging design of electric vehicle connected to distribution network are analyzed,and the orderly charging objective function is established.Finally,the normal distribution is used to control the randomness of charging load and realize the simulation of charging load demand of distribution network.The simulation results show that compared with the two traditional simulation methods,the designed simulation method has the smallest network load loss,which is conducive to the practical application of electric vehicle charging in the distribution network.