配电网无功补偿优化控制对分布式光伏线路电压的影响  

Impact of Reactive Power Compensation Optimized Control in Distribution Networks on Line Voltage of Distributed Photovoltaics

作　　者：何锋 鲁济星 韩琼 张彪 潘波 蒋铭珏 HE Feng;LU Jixing;HAN Qiong;ZHANG Biao;PAN Bo;JIANG Mingjue(State Grid Zhejiang Anji County Power Supply Co.,Ltd.,Anji 313300,China)

机构地区：[1]国网浙江安吉县供电有限公司,浙江安吉313300

出　　处：《电工技术》2024年第15期106-108,共3页Electric Engineering

摘　　要：分布式电源(光伏、储能、水电、风电、生物质发电等)在全社会用电负荷中的占比越来越高,分布式电源点附近电压大幅抬升,合理的无功补偿可降损节能和提高电压质量。提出一种配电网无功补偿优化控制方法,通过对候选补偿节点进行筛选,排除部分无效节点,从而快速、有效地确定配电网中待补偿节点个数,再以不同的无功功率分布下有功损耗最小为目标确定补偿点位置和容量,实现配电网的最佳无功补偿,改善线路电压。Distributed generations such as photovoltaics,energy storage,hydroelectric generation,wind generation,biomass generation,etc.account for an increasing proportion of the total electric supply.The voltage near distributed sources usually increases significantly,and appropriate reactive power compensation can reduce line loss,save energy,and improve voltage quality.This paper aims to propose an optimized control method for reactive power compensation in distribution networks.By screening candidate compensation nodes and excluding some invalid nodes,the number of effective nodes to be compensated in the distribution network is quickly and effectively determined.Then the position and capacity of compensation points are determined by regarding minimal active power loss under different reactive power distributions as the objective,thereby achievin optimized reactive power compensation and improved line voltage.

关 键 词：分布式电源 配电网 无功补偿 优化控制 光伏 线路电压 

分 类 号：TM714.3[电气工程—电力系统及自动化]