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A New Single End Wideband Impedance Based Fault Location Scheme for Distribution Systems

Aboshady, F M; Thomas, D W P; Sumner, Mark

A New Single End Wideband Impedance Based Fault Location Scheme for Distribution Systems Thumbnail


Authors

F M Aboshady

D W P Thomas

MARK SUMNER MARK.SUMNER@NOTTINGHAM.AC.UK
Professor of Electrical Energy Systems



Abstract

This paper proposes an improved impedance based fault location scheme based on system analysis at non-fundamental frequencies. The fault is treated as a voltage source that injects high frequency components into the system and the analysis is carried out using these injected components. The proposed method only requires local measurements at the substation and therefore is classified as a single end method. The new contribution is that the proposed method uses the distributed parameter line model to account for inductive and capacitive effects of the line. It has been evaluated on the IEEE 34-bus feeder which is based on an actual distribution system which has the typical features such as non-homogeneous feeder sections, asymmetrical line configurations, unbalanced loads and single and three-phase laterals. The fault point, fault resistance and fault inception angle have been varied to check their influence on the accuracy of the method. The simulation results demonstrate the accuracy of the proposed method where for most cases, the error in fault location is less than 50 m.

Citation

Aboshady, F. M., Thomas, D. W. P., & Sumner, M. (2019). A New Single End Wideband Impedance Based Fault Location Scheme for Distribution Systems. Electric Power Systems Research, 173, 263-270. https://doi.org/10.1016/j.epsr.2019.04.034

Journal Article Type Article
Acceptance Date Apr 26, 2019
Online Publication Date May 6, 2019
Publication Date 2019-08
Deposit Date May 13, 2019
Publicly Available Date Mar 28, 2024
Journal Electric Power Systems Research
Print ISSN 0378-7796
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 173
Pages 263-270
DOI https://doi.org/10.1016/j.epsr.2019.04.034
Keywords fault location; fault transient; impedance based; single end
Public URL https://nottingham-repository.worktribe.com/output/2042694
Publisher URL https://www.sciencedirect.com/science/article/pii/S0378779619301695
Additional Information This article is maintained by: Elsevier; Article Title: A new single end wideband impedance based fault location scheme for distribution systems; Journal Title: Electric Power Systems Research; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.epsr.2019.04.034; Content Type: article; Copyright: © 2019 Elsevier B.V. All rights reserved.

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