基于抽蓄电站自动电压控制系统的改进无功分配策略研究与应用  

Research and application of improved reactive power distribution strategy based on automatic voltage control system of pumped storage power station

作　　者：支晓晨 李玉齐 高熹 邱文俊 李超 ZHI Xiaochen;LI Yuqi;GAO Xi;QIU Wenjun;LI Chao(Shanghai MingHua Electric Power Science&Technology Co.,Ltd,Shanghai 200090;Jiangsu Guoxin Liyang Pumped Storage Power Generation Co.,Ltd,Liyang,Jiangsu 213334)

机构地区：[1]上海明华电力科技有限公司,上海200090 [2]江苏国信溧阳抽水蓄能发电有限公司,江苏溧阳213334

出　　处：《电气技术》2023年第4期74-80,共7页Electrical Engineering

摘　　要：为了解决抽水蓄能电站现有自动电压控制系统无功分配算法的不足,提出一种改进无功裕度分配策略。通过各台机组无功限值和当前值,考虑单次调节过后的无功实时值,计算各台机组的惟一无功增量解,并通过同向判定剔除与电压目标调控方向不一致的无功目标。该策略可应用于抽水蓄能电站自动电压控制系统,在电压-无功调控过程中合理分配站内机组的无功功率,提升机组运行的经济性和电压稳定性。In order to solve the shortcomings of the existing reactive power allocation algorithm of automatic voltage control system in pumped storage power station,an improved reactive power margin allocation strategy is proposed.Through the reactive power limit value and current value of each unit,considering the real-time value of reactive power after single adjustment,the only incremental solution of reactive power of each unit is calculated,and the reactive power target inconsistent with the direction of voltage target regulation is eliminated by the same direction judgment.The strategy can be applied to the automatic voltage control system of pumped storage power station,reasonably distribute the reactive power of the unit in the station during the voltage-reactive power regulation process,and improve the economy and voltage stability of the unit operation.

关 键 词：抽蓄电站 自动电压控制(AVC) 无功分配策略 相似裕度 改进无功裕度 

分 类 号：TV743[水利工程—水利水电工程]