This paper examines the behavior of three phase induction motors with internal fault conditions under sinusoidal supply voltages. Two types of induction machine internal faults are investigated, rotor broken bar, and stator shorted turns faults. Early detection and diagnosis of these faults are desirable for condition assessment, maintenance schedule and improved operational efficiency of induction motors. The terminal behavior of the induction motor was obtained by coupling the induction motor transient FE model and external electric circuit. Such a model would allow efficient representation of the induction machine with internal faults. A Discrete wavelet transform (DWT) was then used to extract the different harmonic components of the stator currents. The key advantages of the DWT are its ability to provide a local representation of the nonstationary current signals for normal and faulty operating conditions.


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    Title :

    Modeling and characterization of induction motor internal faults using finite element and discrete wavelet transforms


    Contributors:
    Mohammed, O. A. (author) / Abed, N. Y. (author) / Ganu, S. (author)


    Publication date :

    2007-05-01


    Size :

    463967 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




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