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 Various Algorithms to Detect Faults on Underground Cables Based onImpedance Method
Tác giả hoặc Nhóm tác giả: Le Hong Lam, Dang Hong Quan, Nguyen Van Tan, Nguyen Huu Hieu
Nơi đăng: 2018 4th International Conference on Green Technology and Sustainable Development (GTSD); Số: 1;Từ->đến trang: 1-6;Năm: 2018
Lĩnh vực: Khoa học công nghệ; Loại: Báo cáo; Thể loại: Quốc tế
TÓM TẮT
Nowadays, the rapid detection of short-circuit faultsin the distribution network is very necessary aiming to increasethe reliability of the electric network. The shorter the time ofdetection of faults is, the faster the recovery of the normaloperation of the distribution network is. However, this task containsa challenge due to the complexity of distribution networksthat are using both overhead and underground cables. Recently,many research activities are presented to detect the short-circuitfault in a distribution network and classified into three catalogs:(i) time domain reflection, (ii) traveling wave method, and (iii)impedance method. However, the first two methods have a veryhigh investment cost, thus they are not used widely in distributionnetworks even their efficiency performance is confirmed.Therefore, this paper aims to study on many algorithms; e.g.Tagaki, Saha, Personal Algorithm; which are developed basedon the last method, then a program is implemented in MatlabSimulink in order to test various algorithms. Moreover, thesealgorithms are tested with two real underground cables in theCenter of Vietnam to figure out the best algorithm for the realapplication in Vietnam.
ABSTRACT
Nowadays, the rapid detection of short-circuit faultsin the distribution network is very necessary aiming to increasethe reliability of the electric network. The shorter the time ofdetection of faults is, the faster the recovery of the normaloperation of the distribution network is. However, this task containsa challenge due to the complexity of distribution networksthat are using both overhead and underground cables. Recently,many research activities are presented to detect the short-circuitfault in a distribution network and classified into three catalogs:(i) time domain reflection, (ii) traveling wave method, and (iii)impedance method. However, the first two methods have a veryhigh investment cost, thus they are not used widely in distributionnetworks even their efficiency performance is confirmed.Therefore, this paper aims to study on many algorithms; e.g.Tagaki, Saha, Personal Algorithm; which are developed basedon the last method, then a program is implemented in MatlabSimulink in order to test various algorithms. Moreover, thesealgorithms are tested with two real underground cables in theCenter of Vietnam to figure out the best algorithm for the realapplication in Vietnam.
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