光伏发电站多级联调控制策略设计

Design of the control strategy of multi-level joint regulation for photovoltaic power station

为推进光伏发电的消纳能力,提高光伏发电站的平均利用小时数,设计一种光伏发电站多级联调控制系统。首先,通过分析光伏发电站的应用需求,对光伏发电站多级联调控制系统的整体框架进行了设计;然后根据系统整体框架,采用两阶段的多级联调控制策略从光伏发电站发电系统分配、区域系统有功集群控制、光伏发电站调度平台控制三个方面进行具体设计;最后,以云南某区域光伏发电站作为研究对象对所提控制系统进行了检验。结果表明,所提系统实现了光伏发电站的联调控制,解决了发电控制与管理的难题,提高了光伏发电站的平均利用小时数,总体提高3.54%,减少了不必要的发电损失,促进了光伏发电的消纳,为光伏发电站并入电网的调度管理提供了理论依据。

In order to promote the accommodation capacity of photovoltaic power and improve the average utilization hours of photovoltaic power station,a control system of multi-level joint regulation for photovoltaic power station was designed.Firstly,the overall framework of the control system of multi-level joint regulation of photovoltaic power station was designedby analyzing the application requirements of photovoltaic power station;Then,according to the overall framework of the system,a control strategy of two-stagemulti-level joint regulationwas adopted to carry out specific design from three aspects:photovoltaic power generation system distributionof photovoltaic power station,active power cluster control of regional system,and dispatching platform control of photovoltaic power station;Finally,the proposed control system was tested with a photovoltaic power station in Yunnan as the research object.The results show that the proposed system realizes the joint regulation control of the photovoltaic power station,solves the problem of power generation control and management,increases the average utilization hours of the photovoltaic power station by 3.54%,reduces unnecessary power generation losses,promotes the accommodation of photovoltaic power,and provides a theoretical basis for the dispatching and management of photovoltaic power station connected to the grid.