An investigation into the robustness of a double-ended wideband impedance-based fault location technique.

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

Abstract

The double-ended impedance-based fault location technique (DEFLT) uses the wideband frequency content of the transient generated by the fault to determine the impedance from the point of measurement to the fault. This paper evaluates and develops the DEFLT experimentally for a Shipboard Power System (SPS) to determine its robustness to source impedance, the presence of interconnected loads ("tapped" loads) and tapped lines. Results demonstrate that the estimated impedance (and therefore distance to the fault) is influenced by the presence of tapped loads when the source impedance is large, or when the tapped load is comparable to the rated load of the system. Therefore, a scheme is proposed that compensates for any tapped load without requiring any additional measurements. Using the proposed scheme, the maximum error is significantly reduced from 92 to 13%. Simulation and experimental results show that a high accuracy for the estimated fault location can be achieved. [Abstract copyright: © 2023. The Author(s).]

Citation

Jahanger, H. K., Thomas, D. W. P., & Sumner, M. (2023). An investigation into the robustness of a double-ended wideband impedance-based fault location technique. Scientific Reports, 13(1), Article 10001. https://doi.org/10.1038/s41598-023-36541-2

• Journal Article Type: Article
• Acceptance Date: Jun 6, 2023
• Online Publication Date: Jun 20, 2023
• Publication Date: 2023
• Deposit Date: May 2, 2024
• Publicly Available Date: May 2, 2024
• Journal: Scientific Reports
• Electronic ISSN: 2045-2322
• Publisher: Nature Publishing Group
• Peer Reviewed: Peer Reviewed
• Volume: 13
• Issue: 1
• Article Number: 10001
• DOI: https://doi.org/10.1038/s41598-023-36541-2
• Public URL: https://nottingham-repository.worktribe.com/output/22713979
• Publisher URL: https://www.nature.com/articles/s41598-023-36541-2