This paper presents the application or the Wigner-Ville distribution (WVD) to the spectral analysis of the voltage and current systems at the terminals of an inverter-fed induction motor. The spectral- leakage problem is studied and the attention is rocused on the effect of wlndowing. New suitable windows are proposed to provide high-resolution signal characterisation in the time-frequency space. The results show that the spectral analysis, based on the WVD in conjunction with suitable windows, may be used to determine the occurrence and severity of motor faults.
The Application of the Wigner-Ville Distribution to Inverter-Fed Induction Motor Fault Detection / L., Salvatore; Stasi, Silvio; Cupertino, Francesco. - (1999), pp. 441-446. (Intervento presentato al convegno SDEMPED '99, IEEE International Symposium on Diagnostics for Electrical Machine tenutosi a Gijon, Spain nel September 1-3, 1999).
The Application of the Wigner-Ville Distribution to Inverter-Fed Induction Motor Fault Detection
STASI, Silvio;CUPERTINO, Francesco
1999-01-01
Abstract
This paper presents the application or the Wigner-Ville distribution (WVD) to the spectral analysis of the voltage and current systems at the terminals of an inverter-fed induction motor. The spectral- leakage problem is studied and the attention is rocused on the effect of wlndowing. New suitable windows are proposed to provide high-resolution signal characterisation in the time-frequency space. The results show that the spectral analysis, based on the WVD in conjunction with suitable windows, may be used to determine the occurrence and severity of motor faults.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
