220 kV变电站无功补偿优化计算研究  

Study on Reactive Power Compensation Optimization Computation of 220 kV Substation

作　　者：徐志伟 蔡晖 XU Zhiwei;CAI Hui(Yangzhou Haochen Electric Power Design Co.,Ltd.,Jiangsu Yangzhou 225000,China;State Grid Jiangsu Economic Research Institute,Nanjing 210008,China)

机构地区：[1]扬州浩辰电力设计有限公司,江苏扬州225000 [2]国网江苏省电力有限公司经济技术研究院,南京210008

出　　处：《电力电容器与无功补偿》2023年第4期12-18,共7页Power Capacitor & Reactive Power Compensation

摘　　要：针对220 kV变电站高峰负荷和低谷负荷期间功率因数越限和无功倒送问题,提出一种220 kV变电站无功补偿优化计算方法。建立了变电站功率因数诊断模型,对220 kV变电站运行数据进行功率因数诊断评估,筛选得到不合格的运行数据,然后构建容性无功优化和感性无功优化模型,对高峰负荷和低谷负荷时间段的不合格运行数据进行无功补偿容量计算。采用容性/感性功率因数检验模型对无功补偿容量计算值进行检验计算,得到了最优的无功补偿配置方案。该方法简单易用、计算速度快,精度高,有效解决现有变电站无功设备配置不合理的技术问题。As for the issue of power factor off limit and reactive power back flow of 220 kV substation during the peak and valley load period,a kind of optimization calculation method for reactive power compensation of 220 kV substation is proposed.The power factor diagnosis model of substation is set up to diagnose and assess the power factor of operation of 220 kV substation,and the unqualified operation data are obtained through screening.Then,the capacitive reactive power optimization and inductive reactive power optimiza⁃tion models are constructed to calculate the reactive power compensation capacity of unqualified operation datainpeakandlowloadperiods.The capacitive/inductive power factor test model is used to check and calcu⁃late the calculated value of reactive power compensation capacity,and the optimal reactive power compen⁃sation configuration scheme is obtained.This method is simple and easy to use,has fast calculation speed and high accuracy,which can effectively solve the technical problem of unreasonable configuration of reac⁃tive power equipment in existing substation.

关 键 词：无功补偿优化 功率因数 变电站 电容器 电抗器 

分 类 号：TM714.3[电气工程—电力系统及自动化] TM63