DocumentCode
1437834
Title
Power system frequency estimation
Author
Szafran, J. ; Rebizant, W.
Author_Institution
Inst. of Electr. Power Eng., Wroclaw Univ. of Technol., Poland
Volume
145
Issue
5
fYear
1998
fDate
9/1/1998 12:00:00 AM
Firstpage
578
Lastpage
582
Abstract
A new algorithm of power system frequency estimation is presented. The algorithm applies orthogonal signal components obtained with use of two orthogonal FIR filters. The essential property of the algorithm presented is its outstanding immunity to both signal orthogonal component magnitudes and FIR filter gains variations which ensures 1.5 mHz accuracy of estimation over typical (±2 Hz) range of measured frequency deviation. The results of the algorithm simulation tests using the EMTP software package are also included. It was confirmed that the algorithm dynamics are good enough to track power system frequency even under transient conditions
Keywords
FIR filters; frequency estimation; power systems; signal processing; EMTP software package; FIR filter gains variations; algorithm simulation tests; frequency deviation measurement; orthogonal FIR filters; orthogonal signal components; power system frequency estimation; power system frequency transients; signal orthogonal component magnitudes; transient conditions;
fLanguage
English
Journal_Title
Generation, Transmission and Distribution, IEE Proceedings-
Publisher
iet
ISSN
1350-2360
Type
jour
DOI
10.1049/ip-gtd:19982187
Filename
723987
Link To Document