Airgap-Eccentricity Fault Diagnosis, in Three-Phase Induction Motors, by the Complex Apparent Power Signature Analysis
Drif, M.; Cardoso, A.J.M.
Industrial Electronics, IEEE Transactions on
Volume 55, Issue 3, March 2008 Page(s):1404 - 1410
Digital Object Identifier 10.1109/TIE.2007.909076
Summary:This paper deals with the use of the signature analysis of the complex apparent power modulus as a new technique for the diagnostics of mixed airgap-eccentricity condition in operating three-phase squirrel-cage induction motors. First, a modeling and simulation study concerning the occurrence of airgap eccentricity in three-phase induction motors is presented. For that purpose, the winding function approach is considered. Then, both simulation and experimental results are presented to illustrate the effectiveness of the proposed approach. A suitable fault-severity factor is also proposed as an indicator of the condition of the machine.
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