A GNSS-independent Two-terminal Traveling Wave Fault Location Scheme for Transmission Lines

被引：0
|
作者：
Qi Z. [1 ]
Wang H. [1 ]
Dong X. [1 ]
Hong Q. [2 ]
机构：
[1] State Key Lab of Control and Simulation of Power Systems and Generation Equipment, Department of Electrical Engineering, Tsinghua University, Haidian District, Beijing
[2] University of Strathclyde, Glasgow
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2024年 / 44卷 / 10期
基金：
中国国家自然科学基金;
关键词：
global navigation satellite system (GNSS); transmission lines; traveling wave fault location; traveling wave propagation; unsynchronized data;
D O I：
10.13334/j.0258-8013.pcsee.230032
中图分类号：
学科分类号：
摘要：
Two-terminal traveling wave-based fault location is essential for transmission line fault recovery. To synchronize the data, the traditional method relies heavily on the global navigation satellite system (GNSS), leading to a risk of signal error. Considering the propagation delay and time shift invariance of traveling waves, this paper proposes a two-terminal traveling wave fault location scheme without GNSS. In theory, this paper analyzes the influence of time synchronization error and the phase angle difference of the pre-fault directional traveling wave. The feasibility of two-terminal fault location by calculating pre-fault directional traveling wave phasor is proved by formula derivation. In algorithm, the proposed algorithm detects the arriving time of the initial current traveling wave by dyadic wavelet transform. Then, the directional traveling wave is processed by the discrete Fourier transform algorithm. Considering the transfer characteristics of Capacitive Voltage Transformers (CVT), the proposed scheme performs well under different fault conditions, sampling frequency and noise interference. Since no additional hardware is required, the proposed scheme could be conveniently integrated into existing devices. ©2024 Chin.Soc.for Elec.Eng.
引用
收藏
页码：3766 / 3776
页数：10
相关论文
共 33 条
  • [1] CHEN Guoping, DONG Yu, LIANG Zhifeng, Analysis and reflection on high-quality development of new energy with Chinese characteristics in energy transition [J], Proceedings of the CSEE, 40, 17, pp. 5493-5505, (2020)
  • [2] HAN Xiancai, SUN Xin, CHEN Haibo, The overview of development of UHV AC transmission technology in China[J], Proceedings of the CSEE, 40, 14, pp. 4371-4386, (2020)
  • [3] SHU Hongchun, Transient analysis of traveling wave and fault location-Part I[M], pp. 289-435, (2016)
  • [4] Lin YANG, WANG Bin, DONG Xinzhou, Overview of fault location methods in high voltage direct current transmission lines[J], Automation of Electric Power Systems, 42, 8, pp. 185-191, (2018)
  • [5] DONG Xinzhou, The theory of fault travel waves and its application[M], pp. 406-453, (2022)
  • [6] SAHA M M, ROSOLOWSKI E．, Fault location on power networks[M], (2010)
  • [7] ZHANG Chenhao, SONG Guobing, WANG Ting, Single-ended traveling wave fault location method in DC transmission line based on wave front information[J], IEEE Transactions on Power Delivery, 34, 5, pp. 2028-2038, (2019)
  • [8] DENG Feng, LI Xinran, ZENG Xiangjun, Research on single-end traveling wave based protection and fault location method based on waveform uniqueness and feature matching in the time and frequency domain [J], Proceedings of the CSEE, 38, 5, pp. 1475-1487, (2018)
  • [9] ZHU Baihan, CHEN Yu, MA Jinjie, Wavefront steepness based single-ended traveling wave fault location for transmission lines[J], Automation of Electric Power Systems, 45, 9, pp. 130-135, (2021)
  • [10] NAIDU O D, PRADHAN A K, Precise traveling wave-based transmission line fault location method using single-ended data[J], IEEE Transactions on Industrial Informatics, 17, 8, pp. 5197-5207, (2021)
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