一起电磁环网线路三相电流不平衡案例分析  

An Case Analysis on Transmission Line Three-Phase Current Unbalance in a Closed Electromagnetic Loop

作　　者：伞晨峻 黄霆 陈汝昌 San Chenjun;Huang Ting;Chen Ruchang(Yunnan Electrical Power Dispatching and Control Center,Kunming 650011,China)

机构地区：[1]云南电力调度控制中心,云南昆明650011

出　　处：《云南电力技术》2024年第1期80-83,共4页Yunnan Electric Power

摘　　要：三相电流不平衡情况广泛存在于电力系统中,本文针对一起500 kV/220 kV电磁环网合环过程出现的220 kV输电线三相电流不平衡案例进行研究,对电流不平衡原因进行分析,并对不平衡的影响因素进行研究,总结电力运行方面结论,为今后类似研究提供借鉴。Three-phase current unbalance exists in power system widely.This paper presents an unbalance case of a 220 kV transmission line in a closed 550 kV/220 kV electromagnetic loop,with analyzing its causes and influence factors.Finally,from the aspect of power system operation,this paper summarizes conclusions,which will help provide reference for similar research in the future.

关 键 词：电磁环网 输电线路 三相电流不平衡 

分 类 号：TM74[电气工程—电力系统及自动化]