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A Fault Location Scheme for Active Untransposed Distribution Systems Using a Limited Number of Synchronized Measurements

Aboshady, Fathy; Thomas, David; Sumner, Mark

Authors

Fathy Aboshady

DAVID THOMAS dave.thomas@nottingham.ac.uk
Professor of Electromagnetics Applications

MARK SUMNER mark.sumner@nottingham.ac.uk
Professor of Electrical Energy Systems



Abstract

This paper presents a fault location scheme for unbalanced and untransposed distribution systems which contain different types of distributed generation (DG). A general formula has been derived for any fault type using a limited number of synchronized measurement points. To avoid having to synchronize all the measurement points, the voltage and current measured locally at the DGs are processed locally to calculate the equivalent impedance of the DG at the non-fundamental frequencies. This is then used in the fault location process. The IEEE 34-bus feeder is simulated using the distributed parameter model for the lines and is used to validate the proposed scheme. Uncertainties associated with fault type, fault location, fault resistance, inception angle, noise in measurements and load profile are considered in the evaluation. The simulation studies demonstrate that the scheme can have a high accuracy and is robust.

Journal Article Type Article
Publication Date Apr 7, 2020
Journal Electric Power Components and Systems
Print ISSN 1532-5008
Electronic ISSN 1532-5016
Publisher Taylor & Francis Open
Peer Reviewed Peer Reviewed
Volume 48
Issue 1-2
Pages 1-11
APA6 Citation Aboshady, F., Thomas, D., & Sumner, M. (2020). A Fault Location Scheme for Active Untransposed Distribution Systems Using a Limited Number of Synchronized Measurements. Electric Power Components and Systems, 48(1-2), 1-11. https://doi.org/10.1080/15325008.2020.1731880
DOI https://doi.org/10.1080/15325008.2020.1731880
Keywords Distributed generation, Distribution systems, Fault location, Fault transient, Impedance based
Publisher URL https://www.tandfonline.com/doi/full/10.1080/15325008.2020.1731880
Additional Information This is an Accepted Manuscript of an article published by Taylor & Francis in Electric Power Components and Systems on 07.04.20, available online: http://www.tandfonline....0/15325008.2020.1731880
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