The invention relates to the technical field of power distribution network voltage regulation, in particular to a control method and device for electric vehicle charging and discharging stations to participate in power distribution network voltage regulation. And establishing and solving an optimization model to obtain the action of the reactive power compensation device, an electric vehicle charging and discharging station guidance power curve and a power distribution network operation state, and calculating droop control parameters. In the intra-day stage, actual data are obtained according to the results, the active power of the electric vehicle charging and discharging station is updated in a rolling mode, local reactive voltage droop control is conducted according to droop control parameters, and reactive power output of the electric vehicle charging station is determined based on the calculated reactive power increment. Therefore, the problems that in the related technology, the control capacity of the electric vehicle charging equipment on reactive power is not considered, only the reactive reference power is solved, and self-adaptive adjustment control in real-time control is not considered, so that the flexibility and the supporting capacity of the charging equipment are wasted are solved.
本申请涉及配电网调压技术领域,特别涉及一种电动汽车充放电站参与配电网调压的控制方法及装置,其中,方法包括:在日前阶段,生成分布式光伏典型情景,建立并求解优化模型得到无功补偿装置的动作、电动汽车充放电站指导功率曲线、配电网运行状态并计算下垂控制参数。在日内阶段,依据前述成果获取实际数据,滚动更新电动汽车充放电站的有功功率,并根据下垂控制参数进行本地无功电压下垂控制,以基于计算的无功功率增量,确定电动汽车充电站的无功功率输出。由此,解决了相关技术中,未考虑电动汽车充电设备对无功功率的控制能力,仅进行无功参考功率的求解,未考虑实时控制中的自适应调节控制,从而导致充电设备灵活性和支撑能力的浪费等问题。
Control method and device for electric vehicle charging and discharging station to participate in voltage regulation of power distribution network
电动汽车充放电站参与配电网调压的控制方法及装置
25.02.2025
Patent
Elektronische Ressource
Chinesisch
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