According to the electric vehicle and distributed photovoltaic combined participation power distribution network voltage regulation and control method and system, the voltage of a power distribution network is measured in real time, and when the voltage exceeds a specified deviation range, the electric vehicle and distributed photovoltaic combined participation mode is adopted for voltage regulation and control; comprising the steps of regulating and controlling the voltage of a power distribution network through gear regulation of an on-load voltage regulating transformer according to a first time period, regulating and controlling the active power and reactive power of distributed photovoltaic and the reactive power of an electric vehicle charging pile according to a second time period, and regulating and controlling the active power of the electric vehicle charging pile according to a third time period. According to the method, the difference of the on-load voltage regulating transformer, the distributed photovoltaic system and the electric vehicle regulation response time scale is coordinated, the voltage regulation process of the power distribution network is divided into three stages, the three types of voltage regulation resources are dispatched in a unified mode through model prediction control of the three stages, the combined voltage regulation potential of the distributed photovoltaic system and the electric vehicle charging pile is fully called, and the voltage regulation efficiency is improved. And the voltage deviation of the power distribution network is gradually reduced by matching with an on-load voltage regulating transformer.
电动车和分布式光伏联合参与配电网电压调控方法及系统,实时量测配电网电压,当电压超出规定偏差范围时,采用电动车和分布式光伏联合参与的方式进行电压调控,包括按第一时间周期通过有载调压变压器档位调节进行配电网电压调控,按第二时间周期通过调控分布式光伏的有功功率、无功功率和电动汽车充电桩的无功功率,按第三时间周期调控电动汽车充电桩的有功功率。本发明协调有载调压变压器、分布式光伏和电动汽车调控响应时间尺度上的差异,将配电网电压调控过程分为三个阶段,通过三阶段的模型预测控制来统一调度上述三类调压资源,充分调用分布式光伏和电动汽车充电桩的联合调压潜力,并与有载调压变压器相配合,逐步降低配电网电压偏差。
Electric vehicle and distributed photovoltaic combined participation power distribution network voltage regulation and control method and system
电动车和分布式光伏联合参与配电网电压调控方法及系统
2023-07-28
Patent
Electronic Resource
Chinese
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