基于电动汽车充电导航的快充负荷有序接入研究

摘要

Current vehicle navigation system does not consider the power grid side, thus it is not completely suit-able for the navigation of EVs.To address this problem, an EV charging navigation strategy considering the voltage endurance of the distribution system is proposed in this paper.The formation of the EV charging navigation strategy is analyzed from 3 perspectives, i.e., the user side, the power grid side and the traffic side.For the power grid side, a distribution system voltage endurance index of the fast charging station location node is proposed, and the corresponding power adjustment method of fast charging piles is analyzed.For the traffic side, an optimal path planning method based on Dijkstra algorithm is analyzed.The EV charging navigation strategy proposed in this the-sis combines the information provided by the power grid side and the traffic side, and it is capable of meeting di-verse needs of EV users.With the navigation strategy, EV users can obtain more comprehensive information and re-ceive better charging experience.%目前的车辆导航系统没有考虑电网侧的影响,不完全适用于电动汽车充电导航,针对此问题,本文提出了考虑配电系统电压可承受度的电动汽车充电导航策略.从用户侧、电网侧、交通侧三个角度分析了电动汽车充电导航策略的形成,对于电网侧,提出了快充站所在节点的配电系统电压可承受度指标,并分析了快充桩相应的充电功率调节方法;对于交通侧,分析了基于Dijkstra算法的最优路径规划方法.基于33节点配电系统的仿真算例表明,该充电导航策略结合了交通侧和电网侧提供的信息,能够满足电动汽车用户的多样化需求,为用户提供更全面的信息以及更优质的充电体验.