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Practical Aspects of Mixed-Eccentricity Detection in PWM Voltage-Source-Inverter-Fed Induction Motors

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4 Author(s)
Daniel Morinigo-Sotelo ; Dept. of Electr. Eng., Univ. of Valladolid, Valladolid, Spain ; L. A. Garcia-Escudero ; Oscar Duque-Perez ; Marcelo Perez-Alonso

In this paper, we present the results of an ongoing investigation relating to the detection of static and dynamic eccentricity in cage induction motors fed by a pulsewidth-modulation frequency converter using line-current spectral analysis. Two different motors fed by different supply sources (utility voltage and two different voltage converters at different assigned frequencies) were tested. A statistical analysis of the results obtained was carried out. These results allow us to present practical conclusions relating to the detection of mixed eccentricity.

Published in:

IEEE Transactions on Industrial Electronics  (Volume:57 ,  Issue: 1 )