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This paper proposes a comparison of several circuit models of induction motors with broken bars in terms of representation of the phenomena, identifiability of its parameters as well as computing time. Such a comparison is rare as many papers focus on the presentation of new models. The three models studied in this paper are based on electrical circuit equations obtained using a common set of hypotheses...
Experimental work is presented in this paper, that clearly indicates the good behavior of some novel rotor bar fault indicators for converter-fed squirrel cage induction motors. The ratio of the fifth harmonic upper sideband on the seventh harmonic and the ratio of the seventh harmonic lower sideband on the fifth harmonic seem to be good broken bar indicators, largely independent on load conditions...
At the moment renewable generation systems are increasing its presence. The paper is about how machine current signature analysis (MCSA) can reliably diagnose faults in squirrel cage generators. This paper focuses on the experimental investigation for incipient fault detection and fault detection methods, suitably adapted for use in wind generator systems using squirrel cage. The proposed system diagnoses...
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