Journal ArticleDOI
Fault location using the distributed parameter transmission line model
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In this article, the lossless line model is modified to account for the series losses in the line, and the line model equations are then solved in the time domain to accurately locate the fault.Abstract:
Earlier work at Texas A&M University led to the development of transmission line fault location algorithms that were based on synchronized sampling of the voltage and current data from the two ends of the line. The line models used in the algorithms were based on lumped parameter models for electrically short lines, or lossless distributed parameter models for electrically long lines. In this paper, the lossless line model is modified to account for the series losses in the line. The line model equations are then solved in the time domain to accurately locate the fault. Testing of the modified algorithm is performed on a power system belonging to the Western Area Power Administration. Extensive EMTP based simulations are used to generate data that are supplied as inputs to the fault location algorithm. To make the testing as realistic as possible, detailed models of instrument transformers are used in the simulation of the various fault cases.read more
Citations
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Journal ArticleDOI
Smart Fault Location for Smart Grids
TL;DR: Issues associated with improving accuracy of fault location methods in smart grids using an abundance of IED data are discussed, including how the gathered data from different IEDs is used to improve fault location accuracy in transmission and distribution systems.
Journal ArticleDOI
Accurate fault location in the power transmission line using support vector machine approach
Robert Sałat,Stanislaw Osowski +1 more
TL;DR: In this article, a new approach to the location of fault in the high-voltage power transmission line, relying on the application of the support vector machine and frequency characteristics of the measured one-terminal voltage and current transient signals of the system, is presented.
Journal ArticleDOI
Fault location on a transmission line using synchronized Voltage measurements
Sukumar Brahma,Adly A. Girgis +1 more
TL;DR: In this paper, a fault-location method for transmission lines using only synchronized voltage measurements at both ends of the line, eliminating the inherent error due to current transformers (CT) is presented.
Journal ArticleDOI
Applications of phasor measurement units (PMUs) in electric power system networks incorporated with FACTS controllers
TL;DR: In this article, a critical review on different application of Phasor Measurement Units (PMUs) in electric power system networks is presented for advanced power system monitoring, protection, and control.
Journal ArticleDOI
PMU-Based Fault Location Using Voltage Measurements in Large Transmission Networks
TL;DR: In this article, a two-stage fault-location optimization model is proposed, along with defining a matching degree index, where the first stage is the fault region identification stage, and the second stage is used to identify the exact fault line and fault distance.
References
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Journal ArticleDOI
Fault location using wavelets
F.H. Magnago,Ali Abur +1 more
TL;DR: In this article, the use of wavelet transforms for analyzing power system fault transients in order to determine the fault location is described, which is related to the travel time of the signals which are already decomposed into their modal components.
Journal ArticleDOI
A new fault location technique for two- and three-terminal lines
TL;DR: In this article, a method for the computation of fault location in two and three-terminal high voltage lines is presented based on digital computation of the three-phase current and voltage 60/50 Hz phasors at the line terminals.
Journal ArticleDOI
An Accurate Fault Locator With Compensation For Apparent Reactance In The Fault Resistance Resulting From Remore-End Infeed
TL;DR: In this paper, a microprocessor based fault locator is described, which uses novel compensation techniques to improve accuracy and display the distance to the fault in percent of transmission line length, for facilitating repair and restoration following a permanent fault.