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

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

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, November). Influence of DGs on the Single-Ended Impedance Based Fault Location Technique. Presented at 5th International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles (ESARS) and International Transportation Electrification Conference (ITECH), Nottingham, UK

• Presentation Conference Type: Edited Proceedings
• Conference Name: 5th International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles (ESARS) and International Transportation Electrification Conference (ITECH)
• 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/