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000000039 001__ 39
000000039 037__ $$aENY-ARTICLE-2008-032
000000039 041__ $$aeng
000000039 100__ $$aLeonowicz, Z
000000039 245__ $$aAnalysis of Three Phase Signal using Wigner Spectrum 
000000039 260__ $$c2000-09-13
000000039 300__ $$a6p
000000039 500__ $$aXVI IMEKO World Congress, Hofburg, Vienna, 25-28 Sepetmber, 2000
000000039 520__ $$aNew method of observation and diagnosis of inverter-fed induction motor drives is developed and tested. Unsymmetrical conditions concerning the machine impedances or valves operation are reflected in the spectrum of the current spacephasor. We estimate the spectrum of the space-phasor with the help of the Wigner- Ville distribution (WVD) and we obtain its time-frequency representation with excellent time and frequency resolution. The proposed method is tested with nonstationary multiple-component signals occurring during the fault operation of inverter-fed drives and transmission lines.
000000039 6531_ $$aspectral estimation
000000039 6531_ $$aWigner-Ville distribution
000000039 6531_ $$aspace-phasor
000000039 700__ $$aLobos, T
000000039 8560_ $$fzbigniew.leonowicz@pwr.wroc.pl
000000039 8564_ $$uhttp://zet10.ipee.pwr.wroc.pl/record/39/files/$$zAccess to Fulltext
000000039 909CO $$ooai:zet10.pwr.wroc.pl:39$$pglobal
000000039 980__ $$aARTICLE