Fault Location in Long Transmission Lines Using Synchronized Phasor Measurements from Both Ends

Phasor measurement unit based fault location techniques are proposed in this article. Several methods for fault location using synchronized phasor measurements have been listed in the literature review. Some of the listed methods use voltage and current measurements at one end or use two end measure...

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Bibliographic Details
Published in:Electric power components and systems 2012-04, Vol.40 (7), p.759-776
Main Authors: Mekhamer, S. F., Abdelaziz, A. Y., Ezzat, M., Abdel-Salam, T. S.
Format: Article
Language:English
Subjects:
Accuracy
Algorithms
Electric potential
Electric power
Electric resistance
Fault location
Mathematical analysis
Mathematical models
Matlab
phasor measurement unit
Phasors
protection
Simulation
transmission line
Voltage
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Summary:Phasor measurement unit based fault location techniques are proposed in this article. Several methods for fault location using synchronized phasor measurements have been listed in the literature review. Some of the listed methods use voltage and current measurements at one end or use two end measurements. Other methods use synchronized voltage measurements only to eliminate the errors of current transformers. This article regenerates the method using only voltage measurements and suggests a new algorithm using both voltage and current measurements with a higher degree of accuracy. To show the superiority of the new proposed algorithm, a comparison between the two algorithms in terms of accuracy and reliability has been conducted. This article also clarifies the validity of the proposed approach for different fault resistances, even the most severe condition of zero-fault resistance is considered. The robustness of the proposed approach is introduced by considering a noise on the tested signal and inaccurate model parameters. The methods have been tested using results of the off-line simulation program (Power Systems Computer Aided Design, Nayak Corporation, Princeton, New Jersey, USA) and the mathematical analysis with the aid of MATLAB (The MathWorks, Natick, Massachusetts, USA). A comparison between the proposed phasor measurement unit based fault location algorithms and one of the other methodologies is also presented.
ISSN:1532-5008
1532-5016
DOI:10.1080/15325008.2012.658599