基于阻抗法的配电网相间故障定位算法的仿真分析  

Simulation Analysis of Interphase Fault Location Algorithm Based on the Impedance Method of Distribution Network

作　　者：杨隽 肖开伟 鲍小峰 邵武 田庆生 沐欣欣 许志松 YANO Jun;XIAO Kaiwei;BAO Xiaofeng;SHAO Wu;TIAN Qingsheng;MU Xinxin;XU Zhisong(Yuxi Power Supply Bureau,Yunnan Power Grid Co.,Ltd.,Yuxi 653100,China;Postgraduate Workstation of Yunnan Power Grid Company,Kunming 650217,China;Yunnan Electric Test＆Research Institute Group Co.,Ltd.,Kunming 650217,China)

机构地区：[1]云南电网有限责任公司玉溪供电局,云南玉溪653100 [2]云南电网公司研究生工作站,云南昆明650217 [3]云南电力试验研究院(集团)有限公司,云南昆明650217

出　　处：《电工技术》2018年第15期3-6,共4页Electric Engineering

基　　金：南方电网公司项目(编号YNKJ0000025)

摘　　要：阐述了阻抗法的基本原理,提出基于修正系数的相间故障二次定位算法。该算法根据分支负荷与故障点的位置,得到一个实际故障距离的修正系数,以此对基本算法的计算结果进行修正,并结合末端断电指示器对伪故障点进行排除。动模试验及10kV动模仿真的结果均证明了该算法的可行性。Abstract： The basic principle of impedance method was analyzed. The correction coefficient and interphase fault localization algorithm was proposed. Based on branch load and fault point location, a practical fault distance correction coefficient was derived. As a result, the calculation results of the basic algorithm were corrected. The pseudo fault points was elimi nated by end power indicator. The feasibility of the algorithm was verified by dynamic model experiments and 10 kV dynamic simulation.

关 键 词：阻抗法 故障定位算法 相间故障 

分 类 号：TM743[电气工程—电力系统及自动化]