电力系统保护与控制Issue(18)：9-16,8.
参数不对称同塔四回输电线的零序四分量法及故障分析
Four zero-sequence component method of asymmetry-parameter four-parallel lines on the same tower and its fault analysis
摘要
Abstract
Many four-parallel lines on the same tower show the asymmetry of parameters. A new phase-mode transform introduced is introduced to totally decouple the asymmetric matrix and improve the accuracy of fault analysis of four-parallel lines. Referring decoupling method of existing phase-mode transformation, four zero-sequence component method (FZCM) is proposed. Keeping positive and negative sequence components unchanged, this method introduces a same-direction component and three circulation components with correction factors to decouple the matrix. FZCM can be applied to fault analysis of asymmetry-parameter four-parallel lines under same voltage grade or different voltage grades. Fault sequence network can be figured out by the sequence component definition and fault boundary condition. Simulation results prove the validity of four zero-sequence component method for fault analysis. This work is supported by National Natural Science Foundation of China (No. 51177066).关键词
同塔四回线/参数不对称/零序四分量法/解耦/故障分析Key words
four-parallel lines on the same tower/parameters unbalance/four zero-sequence component method/decoupling/fault analysis分类
信息技术与安全科学引用本文复制引用
夏溢,邰能灵,范春菊,于仲安..参数不对称同塔四回输电线的零序四分量法及故障分析[J].电力系统保护与控制,2013,(18):9-16,8.基金项目
国家自然科学基金资助项目 （）
