Asynchronous two-terminal fault location method of transmission line based on parameter modification

被引：0
|
作者：
Wang F. [1 ]
Mu K. [1 ,2 ]
Zhang J. [1 ]
Liu Y. [1 ]
Qian Y. [1 ]
机构：
[1] Key Laboratory of Control of Power Transmission and Conversion, Ministry of Education, Shanghai Jiao Tong University, Shanghai
[2] Electric Power Research Institute, State Grid Jibei Electric Power Company Limited, Beijing
来源：
Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2018年 / 38卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Electric fault location; Electromagnetic-like mechanism algorithm; Transmission line; Two terminals asynchronous; Unbalanced fault;
D O I：
10.16081/j.issn.1006-6047.2018.08.014
中图分类号：
学科分类号：
摘要：
Aiming at the fault location errors caused by asynchronous data and line parameter uncertainty, an asynchronous two-terminal fault location method based on parameter modification is proposed to locate the asynchronous fault. Based on the defined parameter correction coefficient, the effect of asynchronous angle is eliminated through equivalent sequence-network analysis. The fault location equations are established and then solved through the electromagnetic-like mechanism algorithm to locate the fault position. Both simulative results and calculative results of actual line show that immune to the change of line parameters, the proposed method can locate the fault position only using unsynchronized fault data with high accuracy and reliability. © 2018, Electric Power Automation Equipment Press. All right reserved.
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页码：95 / 101
页数：6
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