Journal ArticleDOI
Applying distance relay for voltage sag source detection
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TLDR
In this article, the authors proposed the application of distance relay information for a voltage sag source detection problem and found that the magnitude and angle of impedance before and after the sag event clearly indicate on which side of the power-quality (PQ) monitor, the sag source lies.Abstract:
This paper proposes the application of distance relay information for a voltage sag source detection problem. It is found that the magnitude and angle of impedance before and after the sag event clearly indicate on which side of the power-quality (PQ) monitor, the sag source lies. The required information on impedance can be obtained by the PQ monitor using the estimates of distance relay at that point or applying the algorithm of such relay.read more
Citations
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Journal ArticleDOI
Fault Location in Distribution Systems Based on Smart Feeder Meters
TL;DR: In this paper, a fault-location method based on smart feeder meters with voltage sag monitoring capability is proposed, where the main idea is to explore voltage measurements from monitors placed in different buses of distribution systems to estimate the fault location.
Journal ArticleDOI
Fault Location in Distribution Networks by Compressive Sensing
TL;DR: In this article, the authors proposed a compressive sensing-based fault location method for distribution networks, where the voltage sag vector and impedance matrix produce a current vector that is sparse enough with one nonzero element to represent the bus at which a fault occurs.
Journal ArticleDOI
A Novel Method for Single and Simultaneous Fault Location in Distribution Networks
TL;DR: This paper introduces a novel method for single and simultaneous fault location in distribution networks by means of a sparse representation (SR) vector, Fuzzy-clustering, and machine-learning.
Journal ArticleDOI
Power quality disturbance classification utilizing S-transform and binary feature matrix method
Thai Nguyen,Yuan Liao +1 more
TL;DR: In this paper, the most common types of disturbances including flickers, harmonics, impulses, notches, outages, sags, swells, and switching transients are studied.
Journal ArticleDOI
Frequency Adaptive Least-Squares-Kalman Technique for Real-Time Voltage Envelope and Flicker Estimation
TL;DR: This paper presents real-time implementation of a new frequency adaptive least-squares-Kalman (LSK) technique to monitor voltage flicker and fluctuations in power system.
References
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Journal ArticleDOI
Power quality following deregulation
TL;DR: In this article, the authors present methods available in these areas to achieve specified levels of power quality in the deregulated environment, which will affect the standards, system simulation and monitoring tools.
Journal ArticleDOI
A direction finder for power quality disturbances based upon disturbance power and energy
TL;DR: In this paper, the authors used sampled voltage and current waveforms to determine on which side of a recording device a disturbance originates by examining the energy flow and peak instantaneous power for both capacitor energizing and voltage sag disturbances.
Journal ArticleDOI
Adaptive relay setting for flexible AC transmission systems (FACTS)
TL;DR: In this paper, an apparent impedance calculation procedure for distance relaying of transmission lines involving FACTS devices, particularly the UPFC (unified power flow controller), is presented, which significantly affects the trip boundaries which are also adversely affected by fault resistance combined with remote end infeed.
Journal ArticleDOI
Method for voltage-sag-source detection by investigating slope of the system trajectory
TL;DR: In this article, the voltage-sag-source direction was determined by examining the sign of the slope of a line fitting two parameters during the disturbance, and a least-squares method was used to perform the line fitting.
Proceedings ArticleDOI
Adaptive relay setting for flexible AC transmission systems (FACTS)
TL;DR: In this paper, the authors present an apparent impedance calculation procedure for the distance relaying of power transmission lines involving FACTS devices, particularly the UPFC (unified power flow controller).