Return to search

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

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.

Identiferoai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:tut/oai:encore.tut.ac.za:d1000816
Date19 December 2006
CreatorsUkil, A, Zivanovic, R
PublisherIEEE Transactions on Power Delivery
Source SetsSouth African National ETD Portal
LanguageEnglish
Detected LanguageEnglish
TypeText
FormatPdf
RightsIEEE Transactions on Power Delivery
RelationISI

Page generated in 0.0019 seconds