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000000330 037__ $$aENY-ARTICLE-2009-262
000000330 041__ $$aeng
000000330 100__ $$aJanik, P$$uWroclaw University of Technology, Poland
000000330 245__ $$aPower Quality Analysis of Grid-Connected Wind Turbine System
000000330 260__ $$c2008-09-29
000000330 300__ $$a10p
000000330 500__ $$aComputer applications in electrical engineering / ed. by  Ryszard Nawrowski. Poznań : Gaudentinum, 2008. pp. 235-247
000000330 520__ $$aIn this paper time-frequency methods have been investigated for complex investigations of transient states in wind power plants. Application of parallel processing in time and frequency domain brought new findings in description of wind power plants working under transient conditions. Proposed algorithms represents standard Short-Time Fourier Transform (STFT) as well as alternative methods associated with Cohen’s class, called Choi-Williams Distribution (CWD). In order to explore advantages and disadvantages of the method several experiments were performed using model of squirrel-cage induction machine connected directly to the grid. Investigated phenomena concerns power distortion caused by faults in comparison with influence of the wind speed.
000000330 6531_ $$apower system harmonics
000000330 6531_ $$asignal analysis
000000330 6531_ $$atime-frequency analysis
000000330 6531_ $$aelectric variables estimation
000000330 6531_ $$awind turbine
000000330 700__ $$aLobos, T$$uWroclaw University of Technology, Poland
000000330 700__ $$aRezmer, J$$uWroclaw University of Technology, Poland
000000330 700__ $$aSikorski, T$$uWroclaw University of Technology, Poland
000000330 8560_ $$fleon99@pwr.wroc.pl
000000330 8564_ $$uhttp://zet10.ipee.pwr.wroc.pl/record/330/files/$$zAccess to Fulltext
000000330 909CO $$ooai:zet10.pwr.wroc.pl:330$$pglobal
000000330 980__ $$aARTICLE