Influence of DGs on the Single-Ended Impedance Based Fault Location Technique

Jahanger, Hayder K; Sumner, Mark; Thomas, David W P

Authors

Hayder K Jahanger

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

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

Abstract

The penetration of Distributed Generation (DG) into electricity distribution systems or the integrated power system such as ship or aircraft power systems present a challenge to fault location techniques. This paper investigates the influence of inverter based DG on a single-ended fault location scheme which uses impedance measurement made from the high frequency content of fault transient. The additional non-fundamental frequency current components contributed from the DG will influence the accuracy of this type of impedance based fault location technique. A single-ended impedance based fault location technique that utilizes the high frequency content (up to 3 kHz) is studied. The study shows that the single-ended method is still able to locate faults with maximum error of 4% compared to the case without DG (which showed a percentage error up to 1%). The study also showed that the DG location has a small influence on the accuracy of the scheme.

Citation

Jahanger, H. K., Sumner, M., & Thomas, D. W. P. (2018). Influence of DGs on the Single-Ended Impedance Based Fault Location Technique. In 2018 IEEE International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC)

Conference Name	5th International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles (ESARS) and International Transportation Electrification Conference (ITECH)
Conference Location	Nottingham, UK
Start Date	Nov 7, 2018
End Date	Nov 9, 2018
Acceptance Date	Jul 26, 2018
Online Publication Date	Jan 13, 2019
Publication Date	2018
Deposit Date	Oct 26, 2018
Publicly Available Date	Jan 1, 2020
Book Title	2018 IEEE International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC)
ISBN	978-1-5386-4193-4
Keywords	DG; single-ended; Fault location; Microgrid
Public URL	https://nottingham-repository.worktribe.com/output/1196027
Publisher URL	https://ieeexplore.ieee.org/document/8607787
Related Public URLs	http://www.esars.eu/wp2018/