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Generalized two axes model of a squirrel-cage induction motor for rotor fault diagnosis

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Author(s): Samir Hamdani | Omar Touhami | Rachid Ibtiouen

Journal: Serbian Journal of Electrical Engineering
ISSN 1451-4869

Volume: 5;
Issue: 1;
Start page: 155;
Date: 2008;
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Keywords: induction machine | diagnosis | power spectral density

ABSTRACT
A generalized two axes model of a squirrel-cage induction motor is developed This model is based on a winding function approach and the coupled magnetic circuit theory and takes into account the stator and the rotor asymmetries due to faults. This paper presents a computer simulation and experimental dynamic characteristics for a healthy induction machine, machine with one broken bar and a machine with two broken bars. The results illustrate good agreement between both simulated and experimental results. Also, the power spectral density PSD was performed to obtain a stator current spectrum.
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