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A Wideband Single End Fault Location Scheme for Active Untransposed Distribution Systems

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


F.M. Aboshady

Professor of Electromagnetics Applications

Professor of Electrical Energy Systems


This paper presents a single end fault location scheme for distribution networks with distributed generation (DG). The high frequency transients generated when a fault occurs are used to locate the fault point. An equivalent circuit at high frequencies is derived for both inverter based and synchronous DGs. The voltages and currents measured only at the main substation are used in conjunction with the proposed DG model to create the fault location scheme. The distributed parameter line model is employed in the derivation to account for the line characteristics e.g. inductive and capacitive mutual coupling and untransposed lines. The inverter based DG model is validated experimentally on a 400 V, three-phase system. The IEEE 34-bus feeder is simulated and used to evaluate the proposed scheme for different operating conditions e.g. fault resistance and DG conditions. The extensive simulation studies show the accuracy of the proposed scheme with 95.3% of the test cases having an absolute error in estimation of less than 200 m.


Aboshady, F., Thomas, D., & Sumner, M. (2020). A Wideband Single End Fault Location Scheme for Active Untransposed Distribution Systems. IEEE Transactions on Smart Grid, 11(3), 2115 - 2124.

Journal Article Type Article
Acceptance Date Oct 18, 2019
Online Publication Date Oct 16, 2019
Publication Date May 1, 2020
Deposit Date Oct 22, 2019
Publicly Available Date Oct 28, 2019
Journal IEEE Transactions on Smart Grid
Print ISSN 1949-3053
Electronic ISSN 1949-3061
Publisher Institute of Electrical and Electronics Engineers
Peer Reviewed Peer Reviewed
Volume 11
Issue 3
Pages 2115 - 2124
Keywords Distributed generation; Fault location; Fault transient; Impedance based; Single end
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