Configuration and fault location method for network with limited traveling wave recorder based on hypothetical fault

Yongqi  Liu; Jianbo  Nie; Luyao   Xie; Chao Zhu; Youbing Zhang

doi:10.59400/sv3856

Configuration and fault location method for network with limited traveling wave recorder based on hypothetical fault

Yongqi Liu
College of Information Engineering, Zhejiang University of Technology, Hangzhou 310014, China
Jianbo Nie
College of Information Engineering, Zhejiang University of Technology, Hangzhou 310014, China; State Grid Zhejiang Comprehensive Energy Service Co., Ltd., Hangzhou 310016, China
Luyao Xie
College of Information Engineering, Zhejiang University of Technology, Hangzhou 310014, China
Chao Zhu
Economic and Technological Research Institute, State Grid Zhejiang Electric Power Co., Ltd., Hangzhou 310016, China
Youbing Zhang
College of Information Engineering, Zhejiang University of Technology, Hangzhou 310014, China

Article ID: 3856

DOI: https://doi.org/10.59400/sv3856

Keywords: fault location; wavelet transform; optimal configuration; traveling wave; wide-area synchronized measurements

Abstract

Fault location is crucial for enhancing power supply reliability and shortening power outage duration. Traditional power frequency-based fault location methods are limited by the distributed generation integration and the complex grid topology of renewable energy systems, while traveling wave (TW) fault location technology has become a research hotspot due to its high accuracy and fast response. The mainstream TW methods (single-ended, double-ended) have inherent drawbacks. This paper proposes a hypothetical fault-based fault location method: Acquire data from each sensor, obtain the time information of wavefronts via the db6 wavelet transform, and then construct a time matrix accordingly. Randomly assume a fault point, calculate the TW arrival time difference matrix between the hypothetical fault (based on shortest-path propagation) and the actual fault, derive the time information difference degree by comparing the two matrices, and iteratively update the hypothetical fault point via an optimization algorithm until the matrices coincide. Meanwhile, based on the hypothetical fault method, the mathematical expressions for the line fault observability constraints are derived, the optimal configuration model of traveling wave recorders in the network is established, and the solution is completed. This method achieves accurate fault location, assists in judging whether the network is measurable, and further enables the design of a planning and configuration model to realize the optimal configuration of TWRs under the condition of full-network fault observability without analyzing and deconstructing the network structure. Simulations are conducted on the IEEE 30-bus and IEEE 57-bus systems, respectively, to verify the method’s effectiveness.

Published

2026-03-13

How to Cite

Liu, Y., Nie, J., Xie, L., Zhu, C., & Zhang, Y. (2026). Configuration and fault location method for network with limited traveling wave recorder based on hypothetical fault. Sound & Vibration, 60(2). https://doi.org/10.59400/sv3856

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Vol. 60 No. 2 (2026)

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Article

This work is licensed under a Creative Commons Attribution 4.0 International License.

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