电磁环网开环运行研究  

Research on Electromagnetic Loop Network Opening Operation

作　　者：姚峰[1] 李秋燕[2] 孙建华[1] 孙冉[1] 

机构地区：[1]河南省电力公司,河南郑州450002 [2]河南省电力公司培训中心,河南郑州450052

出　　处：《华中电力》2012年第1期57-59,63,共4页Central China Electric Power

摘　　要：电磁环网运行的危害是高压线路发生故障跳闸可能导致线路过负荷、系统电压降低,甚至发生电压崩溃和发电机功角失稳。随着电网结构的加强,应逐步打开电网中运行的高低压电磁环网。基于河南电网近几年实施的电磁环网开环工作,分析了电磁环网形成的原因、主要危害,提出了开环的技术原则和保证开环后电网安全性的管理措施。The operation state of electromagnetic loop network is dangerous,when the high voltage transmission line appears fault and the breaker trips,which may lead to overload on the transmission line and the decrease of system voltage,even may lead to collapse of the voltage,and instability of the generators.With the power grid structure strengthened,the loop network should be untied step by step.Based on recent years of research on opening Henan power grid electromagnetic loop network,the forming reasons and major dangers are analysed,and technology principles and management measures are suggested,which are used to ensure the power grid operation safety after the implementation of opening the loop network.

关 键 词：电力系统 电磁环网 开环 安全稳定性 

分 类 号：TM712[电气工程—电力系统及自动化]