基于分布参数模型的同杆双回输电线路故障测距  

Fault Location Algorithm for Double-Circuit Transmission Lines Based on Distributed Parameter Model

作　　者：商立群[1] 施围[1] 

机构地区：[1]西安交通大学电气工程学院

出　　处：《西安交通大学学报》2005年第12期1380-1383,共4页Journal of Xi'an Jiaotong University

基　　金：陕西省教育厅专项科研计划资助项目(05JK258)

摘　　要：基于线路的分布参数模型,并且利用线路两端工频电气量和相模变换,提出了在模域中进行故障测距的算法.该算法不受系统阻抗和过渡电阻的影响,并且消除了双回线间耦合的影响,可用于单回线故障和跨线故障的测距.该算法原理简单,求解方便,仿真结果表明,算法具有较高的精度,最大测距误差小于0.5%,能够满足工程要求.Aiming at the effects of distributed capacitance on accurate fault location, a new method based on the distributed parameter model, where the two-terminal data of the transmission lines are utilized, is proposed. With the aid of phase-mode transformation, one line fault and cross line fault positions are determined in mode-domain accurately. This algorithm can be executed independently of the source impedance and fault resistance with an error less than 0.5 percent.

关 键 词：同杆双回输电线路 故障测距 分布参数 相模变换 

分 类 号：TM711[电气工程—电力系统及自动化]