@Article{ee.2022.020344,
AUTHOR = {Jia’an Xie, Yurong Wang, Guobin Jin, Mucheng Wu},
TITLE = {T-Shaped Transmission Line Fault Location Based on Phase-Angle Jump Checking},
JOURNAL = {Energy Engineering},
VOLUME = {119},
YEAR = {2022},
NUMBER = {5},
PAGES = {1797--1809},
URL = {http://www.techscience.com/energy/v119n5/48949},
ISSN = {1546-0118},
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 for checking calculation, and then the only real root can be determined as the actual fault distance, thereby achieving the purpose of high-precision fault location. MATLAB simulation results show that the proposed new algorithm is feasible and effective with high fault location accuracy and good versatility.},
DOI = {10.32604/ee.2022.020344}
}