Repozytorium Eny Politechnika Wrocławska: Rekord#209: Adaptive Measurement of Power System Currents, Voltages and Impedances in Off-nominal Frequency Conditions

Published Article /

I08/1999/I-047

ENY-ARTICLE-2008-162

Adaptive Measurement of Power System Currents, Voltages and Impedances in Off-nominal Frequency Conditions

Szafran, J (Wroclaw University of Technology, Wroclaw, Poland) ; Rebizant, W (Wroclaw University of Technology, Wroclaw, Poland) ; Michalik, M (Wroclaw University of Technology, Wroclaw, Poland)

1999-09-05

Abstract: In the paper the problem of basic power system electric quantities (current, voltage magnitudes, power and impedance) measurement in off-nominal frequency conditions is considered under assumption thal the quantities are calculated from orthogonal components of input current and voltage phasors which are obtained by use of the nonrecursive digital filters. Adaptive algorithms which make the measurement insensitive to wide range frequency ranges of the input signal, are presented. The adaptive features of the algorithm, are obtained by use of the frequency measuring algorithm and modification of orthogonal filters coeficients and data window length. Sample results of simulation studies which show the algorithm performance are presented and discussed in the paper.

Keyword(s): digital protection ; filtering ; adaptive algorithms
Note: Proceedings of the 16th IEEE Instrumentation and Measurement Technology Conference. IMTC/99. Measurements for the new millennium, Venice, Italy, May 24-26, 1999. Vol. 2 / Ed. by Vincenzo Piuri and Mario Savino. Piscataway, NJ : IEEE Service Center, 1999. pp. 801-806

Fulltext : http://zet10.ipee.pwr.wroc.pl/record/209/files/

Cited by: try citation search for ENY-ARTICLE-2008-162; I08/1999/I-047

Rekord stworzony 2008-09-19, ostatnia modyfikacja 2008-09-20

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