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JEET, Vol. 13, No. 6, November 2018
Extended Fault Location Algorithm Using the Estimated Remote Source Impedance for Parallel Transmission Lines
Sang-Hee Kang
Area A - Electric Power Engineering
Abstract This paper describes extended fault location algorithm using estimated remote source impedance. The method uses data only at the local end and the sequence current distribution factors for more accurate estimation. The proposed algorithm can respond to variation of the local and remote source impedance. Therefore, this method is especially useful for transmission lines interconnected to a wind farm that the source impedance varies continuously. The proposed algorithm is very insensitive to the variation in fault distance and fault resistance. The simulation results have shown the accuracy and effectiveness of the proposed algorithm.
Keyword Fault location,Parallel transmission line,Source impedance estimation.
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