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A new technique based on fundamental frequency positive sequence fault components for fault location
Author(s) -
Zhao Lihui,
Zhu Jingwei,
Gu Bin
Publication year - 2020
Publication title -
ieej transactions on electrical and electronic engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.254
H-Index - 30
eISSN - 1931-4981
pISSN - 1931-4973
DOI - 10.1002/tee.23086
Subject(s) - fault (geology) , robustness (evolution) , engineering , fault coverage , reliability engineering , fault indicator , electric power transmission , sequence (biology) , fault model , stuck at fault , computer science , electronic engineering , fault detection and isolation , electrical engineering , biochemistry , chemistry , genetics , seismology , biology , electronic circuit , actuator , gene , geology
This paper presents a new fault location technique based on the fundamental frequency positive sequence fault components, featuring robustness to the operating state of the prefault system and fault path resistance. Using the fundamental frequency positive sequence fault components, the technique described in this paper does not require the user to know the fault phases and fault type in advance or use a line zero sequence parameter, which is not only difficult to obtain but is also affected by soil resistivity and thus may be variable. In addition, based on the fault components protection principle, the method is inherently unaffected by the operating state of the prefault system. Accurate transmission lines' fault location is important for expediting their repair or reducing outage times, so the proposed technique could improve the quality and security of the electricity supply. This paper describes the characteristics of the proposed technique and assesses its performance by using the PSCAD/EMTDC simulation. © 2020 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.