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非全相运行输电线路负序方向纵联保护方法
引用本文:王宾,董新洲,薄志谦,Andrew KLIMEK.非全相运行输电线路负序方向纵联保护方法[J].电力系统自动化,2009,33(12):61-66.
作者姓名:王宾  董新洲  薄志谦  Andrew KLIMEK
作者单位:1.清华大学电机系电力系统国家重点实验室,北京市 100084; 2.阿海珐输配电有限公司,英国斯塔福德郡 ST17 4LX
基金项目:高等学校博士学科点专项科研基金
摘    要:负序方向纵联保护具有能够保护故障全过程、不受线路分布电容和系统振荡影响等优点,特别适用于大容量、远距离超特高压输电线路,但无法应用于非全相运行方式,影响了其普及应用。针对该问题,文中利用系统正常运行、非全相运行和非全相运行再故障后3种状态下的相电压和电流相量,虚拟构造母线侧负序电压;并在计算过程中抵消非全相运行时系统中存在的负序电流分量,实现了一种适用于非全相运行方式下的输电线路负序方向纵联保护方法;使得负序方向纵联保护可以适用于输电线路全部运行状态,降低了负序方向纵联微机保护的复杂性,具有较高的实用价值。

关 键 词:超/特高压输电线路  非全相运行  负序方向纵联保护
收稿时间:2008/11/24 0:00:00
修稿时间:6/5/2009 11:38:00 AM

A Novel Algorithm for Negative Sequence Pilot Protection Applicable to Open-phase Transmission Lines
WANG Bin,DONG Xinzhou,BO Zhiqian,Andrew KLIMEK.A Novel Algorithm for Negative Sequence Pilot Protection Applicable to Open-phase Transmission Lines[J].Automation of Electric Power Systems,2009,33(12):61-66.
Authors:WANG Bin  DONG Xinzhou  BO Zhiqian  Andrew KLIMEK
Affiliation:WANG Bin1,DONG Xinzhou1,BO Zhiqian2,,rew KLIMEK2(1. State Key Lab of Power Systems,Department of Electrical Engineering,Tsinghua University,Beijing 100084,China,2. AREVA T&D Automation Co.,Stafford ST17 4LX,UK)
Abstract:Negative sequence pilot protection (NSPP) is one of the most frequently adopted protective principles in HV/EHV transmission lines for its capability of protecting the whole fault process,being immune from the distributed capacitance and system disturbance. But its extensive application is affected by its incapability of the open-phase operation mode. To remedy such a situation,a novel algorithm for NSPP in open-phase transmission lines is proposed which works by adopting the phase voltage and current vecto...
Keywords:HV/EHV transmission lines  open-phase operation  negative sequence pilot protection
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