一种用于同塔双回线故障定位的新相模变换法  

New phase-mode transformation matrix for fault location of double-circuit transmission lines

作　　者：王守鹏 赵冬梅[2] 袁敬中[1] 高杨 WANG Shoupeng;ZHAO Dongmei;YUAN Jingzhong;GAO Yang(State Grid Jibei Electric Economic Research Institute,Beijing 100038,China;School of Electrical and Electronic Engineering,North China Electric Power University,Beijing 102206,China)

机构地区：[1]国网冀北电力有限公司经济技术研究院,北京100038 [2]华北电力大学电气与电子工程学院,北京102206

出　　处：《西安理工大学学报》2020年第3期432-438,共7页Journal of Xi'an University of Technology

基　　金：国家自然科学基金面上项目(51377054);中央高校基本科研业务费专项资金资助项目(2017XS019)。

摘　　要：本文结合均匀换位的输电线路性质,根据三相系统和六相系统之间的关系,构造出一种适用于同塔双回线的新相模变换矩阵。该矩阵用于相模变换,可用单一模量反映各种短路故障,并且矩阵的运算因子均为实数,可使计算量大大减少。用此相模变换矩阵将双回线解耦,可在某一模量下完成同塔双回线发生各种短路故障时的故障定位。大量仿真结果表明,所提方法可行、有效。On the basis of the relationship between three-phase system and six-phase system,this study considers the property of uniformly transposed lines to present a new phase-mode transformation matrix for double-circuit lines.The transformation matrix can use a single modulus to reflect various fault types,with its operational factors being real numbers,thus greatly reducing the amount of calculation.Using this transformation matrix to decouple double-circuit lines,fault location can be confirmed under various types of short-circuit faults by using a certain modulus.A large number of simulation results show that the proposed method is feasible and effective.

关 键 词：相模变换 六相系统 同塔双回线 故障定位 

分 类 号：TM773[电气工程—电力系统及自动化]