Directional element for faulty feeder identification of high‐resistance fault in high‐surety power supply systems
Abstract The high‐surety power supply systems are gaining great attention to enhance the reliability of uninterruptable power supplies. A high‐resistance fault along a high‐surety power supply feeder results in a low fault current, making the conventional high‐surety power supply protection strategy...
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2021-01-01
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Series: | IET Generation, Transmission & Distribution |
Online Access: | https://doi.org/10.1049/gtd2.12006 |
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doaj-8d71e75861394eea9673334221d5f8402021-07-14T13:25:42ZengWileyIET Generation, Transmission & Distribution1751-86871751-86952021-01-01151455510.1049/gtd2.12006Directional element for faulty feeder identification of high‐resistance fault in high‐surety power supply systemsRoja Rouhani0Iman Sadeghkhani1Josep M. Guerrero2Department of Electrical Engineering, Najafabad Branch Islamic Azad University Najafabad IranDepartment of Electrical Engineering, Najafabad Branch Islamic Azad University Najafabad IranInstitute of Energy Technology Aalborg University Aalborg DenmarkAbstract The high‐surety power supply systems are gaining great attention to enhance the reliability of uninterruptable power supplies. A high‐resistance fault along a high‐surety power supply feeder results in a low fault current, making the conventional high‐surety power supply protection strategy ineffective. To address this problem, this paper develops a directional fault protection strategy for high‐resistance fault detection and faulty feeder identification. Using the intelligent electronic device, the feeder current is sampled and normalised. Then, the fault‐imposed component of the current signal is calculated. This component is added to the input of the forced Helmholtz oscillator to increase the sensitivity of the proposed protection scheme for the detection of high‐resistance faults. The output of the forced Helmholtz oscillator equation is adopted as the fault detection criterion because it is infinity for reverse faults while it is lower than 1 for forward faults, facilitating the fault detection. The developed strategy is local and can detect and classify both pole‐to‐ground and pole‐to‐pole high‐resistance faults. Also, it is effective for both unidirectional and bidirectional converters. The merits of the proposed protection strategy are demonstrated through several fault scenarios using a ±375 V high‐surety power supply system.https://doi.org/10.1049/gtd2.12006 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Roja Rouhani Iman Sadeghkhani Josep M. Guerrero |
spellingShingle |
Roja Rouhani Iman Sadeghkhani Josep M. Guerrero Directional element for faulty feeder identification of high‐resistance fault in high‐surety power supply systems IET Generation, Transmission & Distribution |
author_facet |
Roja Rouhani Iman Sadeghkhani Josep M. Guerrero |
author_sort |
Roja Rouhani |
title |
Directional element for faulty feeder identification of high‐resistance fault in high‐surety power supply systems |
title_short |
Directional element for faulty feeder identification of high‐resistance fault in high‐surety power supply systems |
title_full |
Directional element for faulty feeder identification of high‐resistance fault in high‐surety power supply systems |
title_fullStr |
Directional element for faulty feeder identification of high‐resistance fault in high‐surety power supply systems |
title_full_unstemmed |
Directional element for faulty feeder identification of high‐resistance fault in high‐surety power supply systems |
title_sort |
directional element for faulty feeder identification of high‐resistance fault in high‐surety power supply systems |
publisher |
Wiley |
series |
IET Generation, Transmission & Distribution |
issn |
1751-8687 1751-8695 |
publishDate |
2021-01-01 |
description |
Abstract The high‐surety power supply systems are gaining great attention to enhance the reliability of uninterruptable power supplies. A high‐resistance fault along a high‐surety power supply feeder results in a low fault current, making the conventional high‐surety power supply protection strategy ineffective. To address this problem, this paper develops a directional fault protection strategy for high‐resistance fault detection and faulty feeder identification. Using the intelligent electronic device, the feeder current is sampled and normalised. Then, the fault‐imposed component of the current signal is calculated. This component is added to the input of the forced Helmholtz oscillator to increase the sensitivity of the proposed protection scheme for the detection of high‐resistance faults. The output of the forced Helmholtz oscillator equation is adopted as the fault detection criterion because it is infinity for reverse faults while it is lower than 1 for forward faults, facilitating the fault detection. The developed strategy is local and can detect and classify both pole‐to‐ground and pole‐to‐pole high‐resistance faults. Also, it is effective for both unidirectional and bidirectional converters. The merits of the proposed protection strategy are demonstrated through several fault scenarios using a ±375 V high‐surety power supply system. |
url |
https://doi.org/10.1049/gtd2.12006 |
work_keys_str_mv |
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1721302714439172096 |