2025年7月30日 周三
Home > Archive>Volume 38, Issue 2, 2023 >179-185. DOI:10.19781/j.issn.1673-9140.2023.02.020
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A fault location method for high‑voltage transmission lines based on traveling wave
Author:
Affiliation:

(1.Hechi Power Supply Bureau，Guangxi Power Grid Co., Ltd., Hechi 547000, China;2.State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China)

Clc Number:

TM863

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    Abstract:

    Aiming at the problem of fault location errors caused by the uncertainty of travelling wave velocity, this paper proposes a new fault location method that requires no wave velocity and transmission line radian information. Firstly, a denoise method through multi?scale wavelet transform for the fault signal is described. Secondly, the arrival time parameters of initial traveling wave at different buses are measured. Furthermore, the influences of wave speed and radian of transmission line are eliminated by those time parameters in fault distance expressions. In addition, this paper compares the different fault location results with and without transformers. The simulation results show that although the error will be larger when considering a transformer, this method has higher accuracy and reliability in most cases.

    Reference
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李成信,刘国威,玉 聪,王 琛,陈芳百,万山明.基于行波的高压输电线路故障定位方法[J].电力科学与技术学报英文版,2023,38(2):179-185. LI Chengxin, LIU Guowei, YU Cong, WANG Chen, CHEN Fangbai, WAN Shanming. A fault location method for high‑voltage transmission lines based on traveling wave[J]. Journal of Electric Power Science and Technology,2023,38(2):179-185.

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  • Online: June 29,2023
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