同塔双回线纵联零序方向保护特性仿真分析  

Simulation Analysis of Zero-sequence Direction Protection Characteristics of Double-circuit Lines on the Same Tower

作　　者：邵昱 拜姝羽 董锐 SHAO Yu;BAI Shuyu;DONG Rui(State Grid Henan Electric Power Supply Company Zhengzhou Power Supply Company,Zhengzhou Henan 45000)

机构地区：[1]国网河南省电力公司郑州供电公司,河南郑州450000

出　　处：《河南科技》2018年第23期64-66,共3页Henan Science and Technology

摘　　要：本文针对零序互感对保护的影响进行研究。通过分析故障期间故障线路零序电气量特性和不同运行方式下的内外部故障时互感线路零序电气量特性,提出了附加动作条件来提高保护动作的准确性的方法,并对该方法进行验证。This paper studied the effects of zero-sequence mutual inductance on protection. By analyzing the zero- sequence electric quantity characteristics of the fault line during the fault period and the zero-sequence electric quantity characteristics of the mutual inductance line under different operating modes, an additional action condition was proposed to improve the accuracy of the protection action, and the method was verified.

关 键 词：同塔互感线路 纵联零序方向保护 仿真 

分 类 号：TM774[电气工程—电力系统及自动化]