Study on Traveling Wave Fault Localization of Transmission Line Based on NGO-VMD Algorithm

Ke Yu, Xueling Zhu () and Wensi Cao
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Ke Yu: Faculty of Electrical Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450045, China
Xueling Zhu: Faculty of Electrical Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450045, China
Wensi Cao: Faculty of Electrical Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450045, China

Energies, 2024, vol. 17, issue 9, 1-24

Abstract: To address the challenge of inaccurate fault location of variational mode decomposition (VMD) in practical engineering, due to poor choice of mode decomposition number K and quadratic penalty factor α, a traveling wave fault location method using Northern Goshawk optimization algorithm (NGO) to optimize VMD was proposed. First, the NGO algorithm is used to optimize VMD, and the optimal K and α are obtained. Secondly, the optimal parameters are inputted into VMD for fault signal decomposition, and the eigenmode components are obtained. Due to the difficulty of identification of the traveling wave head in the process of traveling wave propagation, Hilbert transform is used to determine the time of initial arrival of the traveling wave head at both ends of the line, and the fault location is precisely calculated by using the two-ended traveling wave fault detection formula. Finally, simulation experiments are carried out to verify the accuracy of the proposed location method, which shows that the proposed location method can locate the fault more accurately and has good engineering application value.

Keywords: fault location; double-ended traveling wave; variational modal decomposition; Northern Goshawk optimization algorithm; Hilbert transform (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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