Stator Current Assessment of an induction Motor at Crawling in Clarke Plane
نویسندگان
چکیده
In this paper stator current during crawling of induction motor has been assessed. Three phase current signals have been transformed into Clarke plane. Specific reference signals having sinusoidal nature and different frequencies have been defined and then areas formed by the real system data with the reference signal have been determined, wherefrom individual contributions of fundamental waveform and harmonic components are assessed separately and total harmonic distortion factors are measured. Then wavelet decomposition of stator current is done in Clarke Plane, wherefrom, signals are assessed with the help of approximate coefficients in Clarke plane. Significant differences are observed between those parameters found during crawling and that of normal condition useful in detection of such fault
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