Jia’an Xie1,*, Yurong Wang2, Guobin Jin3, Mucheng Wu1
Energy Engineering, Vol.119, No.5, pp. 1797-1809, 2022, DOI:10.32604/ee.2022.020344
Abstract In order to effectively solve the dead-zone and low-precision of T-shaped transmission line fault location, a new T-shaped transmission line fault location algorithm based on phase-angle jump checking is proposed in this paper. Firstly, the 3-terminal synchronous fundamental positive sequence voltage and current phasors are extracted and substituted into the fault branch distance function to realize the selection of fault branch when the fault occurs; Secondly, use the condition of the fundamental positive sequence voltage phasor at the fault point is equal to calculate all roots (including real root and virtual roots); Finally, the phase-angle jump check function is used… More >
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