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Accurate Location of Faults in Transmission Lines by Compensating for the Electrical Distance

by Xue Xue 1, Menghan Cheng 1,2, Tianyu Hou 1,2, Guanhua Wang 1,2, Nan Peng 1,2 and Rui Liang 1,2,*
1
School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou 221116, China
2
Jiangsu Province Laboratory of Mining Electric and Automation, Xuzhou 221116, China
*
Author to whom correspondence should be addressed.
Energies 2020, 13(3), 767; https://doi.org/10.3390/en13030767
Received: 30 December 2019 / Revised: 24 January 2020 / Accepted: 5 February 2020 / Published: 10 February 2020
Accurately locating faults is quite important, especially when the geographical environment is complicated. If the exact location of the fault is not given, wrong route would be chosen, which will greatly slow down repair. This paper proposes an improved traveling wave method by compensating the electrical distance of transmission lines. The catenary model is constructed that considers parameters of the tower and the actual temperature. The actual line length is also derived by the catenary model. A 500 kV transmission line model is established by PSCAD/EMTDC. Various fault simulations are conducted and the results demonstrate that the presented method effectively reduces the error ratio of faulty segment positioning and locates faults with high accuracy. View Full-Text
Keywords: geometric mode; electrical distance compensation; traveling wave; fault location geometric mode; electrical distance compensation; traveling wave; fault location
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Xue, X.; Cheng, M.; Hou, T.; Wang, G.; Peng, N.; Liang, R. Accurate Location of Faults in Transmission Lines by Compensating for the Electrical Distance. Energies 2020, 13, 767.

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