Accurate fault location algorithm on power transmission lines with use of two-end unsynchronized measurements

This paper presents a new approach to fault location on power transmission lines. This approach uses two-end unsynchronised measurements of the line and benefits from the advantages of digital technology and numerical relaying, which are available today and can easily be applied for off-line analysi...

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Published in:Serbian journal of electrical engineering 2012, Vol.9 (2), p.189-200
Main Authors: Mohamed, Dine, Houari, Sayah, Tahar, Bouthiba
Format: Article
Language:English
Subjects:
communication
fault location
MATLAB
unsynchronized measurements
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container_title Serbian journal of electrical engineering
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Houari, Sayah
Tahar, Bouthiba
description This paper presents a new approach to fault location on power transmission lines. This approach uses two-end unsynchronised measurements of the line and benefits from the advantages of digital technology and numerical relaying, which are available today and can easily be applied for off-line analysis. The approach is to modify the apparent impedance method using a very simple first-order formula. The new method is independent of fault resistance, source impedances and pre-fault currents. In addition, the data volume communicated between relays is sufficiently small enough to be transmitted easily using a digital protection channel. The proposed approach is tested via digital simulation using MATLand the applied test results corroborate the superior performance of the proposed approach.
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subjects communication
fault location
MATLAB
unsynchronized measurements
title Accurate fault location algorithm on power transmission lines with use of two-end unsynchronized measurements
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