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000000087 001__ 87
000000087 037__ $$aENY-PREPRINT-2008-004
000000087 041__ $$aeng
000000087 100__ $$aLeonowicz, Z$$uWroclaw University of Technology, Poland
000000087 245__ $$aTime-Frequency Analysis of Distorted Electric Signals using a Complex Space-Phasor
000000087 260__ $$c2008-01-04
000000087 300__ $$a3p
000000087 500__ $$aProceedings of the 7th Int. Conference EEEIC 2008, Cottbus, 5-11.05.2008, pp. 21-23
000000087 520__ $$aWe consider applying non-parametric and parametric methods for calculation of time-frequency representation of non-stationary electric waveforms. Space phasor is applied as a complex representation of 3-phase signals and visualization of the spectrum of positive and negative-sequence components. We compare the uncertainty of measurements using described time-frequency representations, as well as a widely used Fourier techniques. Proposed methods allow tracking instantaneous frequency as well as magnitude of non-stationary signals in power systems. Possible applications in diagnosis and power quality area are targeted.
000000087 6531_ $$aEEEIC
000000087 8560_ $$fzbigniew.leonowicz@pwr.wroc.pl
000000087 8564_ $$uhttp://zet10.ipee.pwr.wroc.pl/record/87/files/$$zAccess to Fulltext
000000087 909CO $$ooai:zet10.pwr.wroc.pl:87$$pglobal
000000087 980__ $$aPREPRINT