摘要
目前湖南电网大部分500/220kV电磁环网均合环运行,导致短路电流超标、运行控制复杂、输电能力受到制约。本文针对2017年迎峰度夏期间长沙东部电网存在的问题,结合电网规划对长沙电网东部500/220kV电磁环网解环方案进行研究。
At present,there is a lot 500/220 kV electromagnetic loop in Hunan power gid,which causes many problems,such as excessive short-circuit current,complex control strategy,limitation of transmission capacity.This article analyzes the problems of Changsha eastern power gird during summer peaks in 2017,and proposes open-loop scheme of 500/220 kV magnetic ring network of Changsha eastern power grid based on power gird planning.
作者
刘静
韩忠晖
杨丹
LIU Jing;HAN Zhonghui;YANG Dan(State Grid Hunan Electric Power Company Limited,Changsha 410004,China)
出处
《湖南电力》
2018年第2期53-55,59,共4页
Hunan Electric Power
关键词
电磁环网
解环方案
短路电流
安全稳定
electromagnetic loop
loop breaking up scheme
short-circuit current
security and stability
