串联谐振故障电流限制器在青海西宁地区超高压电网中的应用研究  

Study on Application of Series Resonant Fault Current Limiter in UHV Power Grid in Xining Area of Qinghai Province

作　　者：范瑞铭 刘联涛 刘飞 李积泰 权慧娟 FAN Ruiming;LIU Liantao;LIU Fei;LI Jitai;QUAN Huijuan

机构地区：[1]国网青海省电力公司经济技术研究院,青海西宁810008

出　　处：《青海电力》2022年第S01期17-21,36,共6页Qinghai Electric Power

摘　　要：加装串联谐振故障电流限制器是解决超高压电网短路电流超标的有效措施。分析了串联谐振故障电流限制器的基本原理及安装方案,通过公式推导计算,提出串联谐振故障电流限制器限流参数选择的解析法,为故障电流限制器参数选择提供理论支撑。研究青海西宁地区超高压电网中750 kV母线短路电流超标原因,计算加装故障电流限制器后母线短路电流水平,在此基础上提出限制青海西宁地区750 kV短路电流措施。研究成果可为青海750 kV电网限制短路电流提供借鉴。Installing series resonant fault current limiter is an effective measure to solve the overstandard shortcircuit current in ultra-high voltage power grid.The basic principle and installation scheme of series resonance fault current limiter are analyzed,and the analytical method of current limiting parameter selection of series resonance fault current limiter is proposed through formula deduction calculation,which provides theoretical support for the parameter selection of fault current limiter.This paper studies the cause of excessive short circuit of 750 kV bus in UHV power grid in Xining area of Qinghai Province,calculates the short circuit current level of bus after installing fault current limiter,and puts forward the measures to limit 750 kV short circuit current in Xining area of Qinghai province on this basis.The research results can provide reference for Qinghai 750 kV power grid to limit short circuit current.

关 键 词：故障电流限制器 短路电流限制 青海电网 串联谐振 

分 类 号：TM614[电气工程—电力系统及自动化]