DocumentCode
2045094
Title
Time-frequency analysis of non-stationary signals in power systems
Author
Lobos, T. ; Rezmer, J. ; Sikorski, T. ; Schegner, P.
Author_Institution
Wroclaw Univ. of Technol., Poland
Volume
1
fYear
2004
fDate
5-8 April 2004
Firstpage
68
Abstract
This article considers the ideas of applying Cohen´s approach to joint time-frequency analysis of nonstationary signals in power systems. Such analysis offers the possibility to track the frequency and amplitude changes of non-stationary signals. The discussed approach can be used to identify transient events in power systems, which include the inter-harmonics. Matching the kernel function with different classes of signals enables real-time improvement of time-frequency analysis.
Keywords
harmonic analysis; power supply quality; power system harmonics; power system transients; time-frequency analysis; Cohen approach; inter-harmonic identification; kernel function; nonstationary signals; power supply quality; power system transients; real-time analysis; signal amplitude monitoring; time-frequency analysis;
fLanguage
English
Publisher
iet
Conference_Titel
Developments in Power System Protection, 2004. Eighth IEE International Conference on
ISSN
0537-9989
Print_ISBN
0-86341-385-4
Type
conf
DOI
10.1049/cp:20040065
Filename
1364808
Link To Document