A Fault Location Algorithm for Multi-Section Combined Transmission Lines Considering Unsynchronized Sampling

Peng Y. Lak, Kwang-Min Ha and Soon-Ryul Nam ()
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Peng Y. Lak: Department of Electrical Engineering, Myongji University, Yongin 17058, Republic of Korea
Kwang-Min Ha: Department of Electrical Engineering, Myongji University, Yongin 17058, Republic of Korea
Soon-Ryul Nam: Department of Electrical Engineering, Myongji University, Yongin 17058, Republic of Korea

Energies, 2024, vol. 17, issue 3, 1-17

Abstract: This paper introduces a fault location technique for multi-section combined transmission lines, utilizing unsynchronized fault record data. The approach determines the intersection points of the voltage magnitudes computed using the fault current and voltage records of each terminal and the constant line parameters of each section. Finally, the real fault location is identified based on the calculated inverse angle of equivalent impedance. To evaluate the performance of the proposed algorithm, a three-section combined transmission line is constructed using the PSCAD/EMTDC software version 5.0.0, and various fault scenarios are simulated and tested employing the proposed algorithm. The results indicate that the proposed algorithm is applicable to various types of faults in a multi-section combined transmission line; the estimations are accurate.

Keywords: fault location; multi-section combined transmission line; positive-sequence component; PSCAD/EMTDC; unsynchronized sampling (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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