THERMAL SCIENCE

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Di Miao

DESIGN OF POWER NETWORK FAULT DIAGNOSIS BASED ON TIME SERIES MATCHING

ABSTRACT
Common grid fault diagnosis does not fully utilize the alarm timing information generated by the fault. To solve this problem, this paper proposes a fault diagnosis method based on time series. The method analyzes the alarm hypothesis sequence generated by the grid fault and the time sequence actually received by the dispatch center, and utilizes the discrete characteristics of the edit distance and reflects the event discreteness and time continuity of the alarm information by adding the time distance. The calculated data of the similarity between the two sequences and the confidence of the alarm hypothesis sequence determine the faulty component.
KEYWORDS
power network, fault diagnosis, time series, confidence
PAPER SUBMITTED: 2018-11-26
PAPER REVISED: 2019-01-25
PAPER ACCEPTED: 2019-02-05
PUBLISHED ONLINE: 2019-05-18
DOI REFERENCE: https://doi.org/10.2298/TSCI181126148M
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2019, VOLUME 23, ISSUE Issue 5, PAGES [2595 - 2604]
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Design of power network fault diagnosis based on time series matching

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence