High-impedance fault location using matching technique and wavelet transform for underground cable distribution network

Ali, M.S. and Bakar, Ab Halim Abu and Mokhlis, Hazlie and Arof, Hamzah and Illias, Hazlee Azil (2014) High-impedance fault location using matching technique and wavelet transform for underground cable distribution network. IEEJ Transactions on Electrical and Electronic Engineering, 9 (2). pp. 176-182. ISSN 1931-4973

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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/tee.219...

Abstract

Locating the faulty section of a high-impedance fault (HIF) is quite challenging for the underground distribution network of a power system. The complexity of the distribution network, such as branches, nonhomogenous lines, and HIF, contributes to the difficulties in locating the faulty section. In this paper, the shortest distance (SD) technique and a database approach have been proposed to determine the faulty section. A multiresolution analysis based on discrete wavelet transforms is chosen to extract the unique features from voltage signals during the HIF event. The output coefficients from the decomposition process is stored in a database and used as the input data for the SD algorithm. The first, second, and third level of detailed coefficients of the post-disturbance voltage signal were utilized for the identification of the faulty section using the proposed method. A ranking analysis was created to provide a number of possibilities of faulty section. In this paper, a 38-node underground distribution network system in a national grid in Malaysia was modeled using the PSCAD software. The proposed method was able to successfully determine the faulty section.

Item Type: Article
Uncontrolled Keywords: High-impedance fault location; Underground distribution system; Wavelet transform
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 09 Jan 2015 05:57
Last Modified: 11 Oct 2018 03:55
URI: http://eprints.um.edu.my/id/eprint/11786

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