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000000220 037__ $$aENY-ARTICLE-2008-171
000000220 041__ $$aeng
000000220 088__ $$aRZ I07/2007/I-024
000000220 100__ $$aLeonowicz, Z
000000220 100__ $$uWroclaw University of Technology, Poland
000000220 245__ $$aNew power quality indices
000000220 260__ $$c2007-06-19
000000220 300__ $$a6p
000000220 500__ $$aProceedings of the Seventh IASTED International Conference on Power and Energy Systems, Palma de Mallorca, Spain, August 29-31, 2007 / Ed. J. Milanovic. Anaheim, Acta Press, cop. 2007. pp. 157-162
000000220 520__ $$aThe author shows that the use of high-resolution spectrum estimation methods instead of Fourier-based techniques can improve the accuracy of measurement of spectral parameters of distorted waveforms encountered in power systems, in particular the estimation of the power quality indices (such as inter/harmonic groups and subgroups). The comparison of the frequency and amplitude estimation error, based on numerical simulations is presented. Presentation of selected power quality indices is then followed by comparison of estimation error in the case of application of FFT-based algorithms and parametric methods. Investigated waveforms are typical for dc arc furnace plant. MUSIC and ESPRIT high-resolution methods are used to analyze waveforms in a supply system of a DC arc furnace.
000000220 6531_ $$apower quality
000000220 6531_ $$aharmonics
000000220 6531_ $$ainterharmonics
000000220 6531_ $$aparametric spectral estimation
000000220 6531_ $$aMUSIC
000000220 6531_ $$aESPRIT
000000220 8560_ $$fleon99@pwr.wroc.pl
000000220 8564_ $$uhttp://zet10.ipee.pwr.wroc.pl/record/220/files/$$zAccess to Fulltext
000000220 909CO $$ooai:zet10.pwr.wroc.pl:220$$pglobal
000000220 980__ $$aARTICLE