Análise e identificação de falta no comando de interruptores de conversores usando Wavelet.

Abstract

Wavelet Transform (WT) has been attracting interest in applications of the electric signs analysis, in contrast with the methodology classic for determination of the spectrum signs during transient or no stationary signs that use Short Time Fourier Transform (STFT). This new mathematical tool it shows eficient and fast. In project is suggested an identification methodology and diagnosis of intermittent operation flaw of the static converter command using a function wavelet mother mexican hat. Identification and diagnosis are accomplished starting from the current analysis of the converter output current that feeds the induction motor.