NDLI: Application of Abrupt Change Detection in Power Systems Disturbance Analysis and Relay Performance Monitoring

Content Provider	IEEE Xplore Digital Library
Author	Ukil, A. Zivanovic, R.
Copyright Year	1986
Abstract	This paper describes the application of the abrupt change detection technologies to detect the abrupt changes in the signals recorded during disturbances in the electrical power network of South Africa for disturbance analysis and relay performance monitoring. The aim is to estimate the time instants of the changes in the signal model parameters during the prefault condition, after initiation of fault, after the circuit-breaker opening and autoreclosure, etc. After these event-specific segmentations, the synchronization of the different digital fault recorder recordings are done based on the fault inception timings. The synchronized signals are segmented again. This synchronized segmentation is the first step toward automatic disturbance recognition, facilitating further complex feature vector analysis and pattern recognition. Besides, the synchronized, segmented recordings can be directly used to analyze certain kinds of disturbances and monitor the relay performance. This paper presents many practical examples from the power network in South Africa
Sponsorship	IEEE Power Engineering Society
Starting Page	59
Ending Page	66
Page Count	8
File Size	1203766
File Format	PDF
ISSN	08858977
Volume Number	22
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power system relaying Power system analysis computing Performance analysis Monitoring Circuit faults Africa Pattern recognition Signal analysis Digital relays Digital recording wavelet transform (WT) Abrupt change detection disturbance analysis relay performance
Content Type	Text
Resource Type	Article
Subject	Energy Engineering and Power Technology Electrical and Electronic Engineering

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