An optical storage charging station operation method considering participation of charging pile reactive power capacity in power distribution network voltage control comprises the steps that firstly, the relation between the charging pile residual reactive power capacity and electric vehicle charging power is analyzed, and on the basis of charging station grid-connected topology, influences of the charging pile residual reactive power capacity and the electric vehicle charging power on network voltage and network loss are studied; then, analyzing a reactive power scheduling mode of the large-scale grid-connected charging station under the background of large-scale photovoltaic and energy storage access; and finally, analyzing the operation mode of the optical storage charging station in the typical day, aggregating the reactive power resources of the charging piles, and establishing an objective function with the minimum node voltage deviation to obtain the optimal configuration quantity of reactive power. The feasibility of the provided model and strategy is verified on Matlab, and good benefits generated by aggregation of the reactive power resources on the power distribution network are simulated and analyzed. According to the invention, reactive compensation can be carried out on the power grid while the electric vehicle is charged, and the threat of large-scale random electric vehicle load access to safe and stable operation of the power grid is relieved.
一种考虑充电桩无功容量参与配电网电压控制的光储充电站运行方法,包括:首先,分析充电桩剩余无功容量与电动汽车充电功率之间的关系,在充电站并网拓扑的基础上,研究二者对电网电压和网损的影响;然后,分析大规模光伏、储能接入的背景下,大型并网充电站的无功调度模式;最后,分析典型日下光储充电站的运行模式,聚合充电桩无功资源,建立节点电压偏差最小的目标函数,得到无功的最优配置量;在Matlab上验证所提模型和策略的可行性,并仿真分析了聚合此类无功资源对配电网产生的良好效益。本发明能够在给电动汽车充电的同时对电网进行无功补偿,缓解大规模随机电动汽车负荷接入对电网的安全稳定运行造成的威胁。
Optical storage charging station operation method considering participation of reactive capacity of charging pile in voltage control of power distribution network
一种考虑充电桩无功容量参与配电网电压控制的光储充电站运行方法
2024-02-23
Patent
Electronic Resource
Chinese
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