The invention relates to the technical field of electric vehicle charging pile voltage regulation, in particular to a charging pile reactive voltage support control method, which comprises the following steps: detecting node voltage of a three-phase charging pile; when the node voltage of the charging pile exceeds the limit, the charging pile informs other adjacent charging piles to start reactive response together; according to a topological structure of a three-phase charging pile, three electric vehicle charging modes including a normal charging mode, a specified reactive power control mode and a power factor control mode are constructed, the charging modes are selected by comprehensively considering demands of a user and a dispatching master station, reactive power and voltage parameters of the charging pile are recorded, and an objective function in an optimization model is constructed; constraint conditions in different modes are determined; the improved grey wolf algorithm is utilized to carry out optimization solution on parameter setting in the charging mode, the optimal solution of the parameters is obtained through optimization iteration of the hunting route and the hunting distance, and target node voltage deviation and reactive power regulation minimization are achieved.
本发明涉及电动汽车充电桩电压调节技术领域,尤其涉及一种充电桩无功电压支持的控制方法,包括:检测三相充电桩的节点电压;当充电桩的节点电压存在越限时,该充电桩通知邻近的其他充电桩共同开始进行无功响应;针对三相充电桩的拓扑结构,构建正常充电模式、指定无功控制模式、功率因数控制模式三种电动汽车充电模式,综合考虑用户和调度主站需求选择充电模式,记录充电桩无功功率、电压参数,构建优化模型中的目标函数,及不同模式下的约束条件;利用改进后的灰狼算法对充电模式中参数设定进行优化求解,通过对狩猎路线及狩猎距离的优化迭代,得到参数的最优解,实现目标节点电压偏差及无功调节最小化。
Control method, system and device for reactive voltage support of charging pile and storage medium
充电桩无功电压支持的控制方法、系统、设备及存储介质
2024-03-19
Patent
Elektronische Ressource
Chinesisch
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