Title :
Detection of Stator Short Circuits in PMSM by mean of joint Time-Frequency Analysis
Author :
Rosero, J. ; Cusido, J. ; Garcia, A. ; Romeral, L. ; Ortega, J.A.
Abstract :
This paper presents and analyzes short circuit failures for permanent magnet synchronous motor (PMSM). The study includes speed transients in realistic experimental conditions. The stator current is analyzed by means of time-frequency spectral distribution (SP), Wigner Ville distribution (WD) and Analytical Wavelet Transform (AWT); also, the ruts value of the local maximum for this distribution is calculated as indicated by Ridge-AWT algorithm. Experimental laboratory results validate the analysis and demonstrate that the time-frequency analysis can be applied to detect and identify short circuit failures in synchronous machines*.
Keywords :
Wigner distribution; fault diagnosis; permanent magnet motors; stators; synchronous motors; time-frequency analysis; wavelet transforms; Wigner Ville distribution; analytical wavelet transform; permanent magnet synchronous motor; speed transients; stator short circuit detection; time-frequency spectral distribution; Algorithm design and analysis; Circuit analysis; Failure analysis; Magnetic analysis; Magnetic circuits; Permanent magnet motors; Stators; Time frequency analysis; Wavelet analysis; Wavelet transforms; AWT; PMSM; PMSM drive; Ridge-AWT; Short Circuit; Spectrogram; WVD; Wavelet; Wigner Ville; fault;
Conference_Titel :
Diagnostics for Electric Machines, Power Electronics and Drives, 2007. SDEMPED 2007. IEEE International Symposium on
Conference_Location :
Cracow
Print_ISBN :
978-1-4244-1061-3
Electronic_ISBN :
978-1-4244-1062-0
DOI :
10.1109/DEMPED.2007.4393131
