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). 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/