Space-Vector Models for Torsional Vibration of Cage Induction Motors

Electromagnetic response of induction motors to torsional vibration is studied using space-vector and finite-element (FE) models. Comparison of the results shows that the skin effect in the rotor bars plays an important role, and the basic space-vector model has to be updated to a double-cage or tri...

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Bibliographic Details
Published in:IEEE transactions on industry applications 2016-07, Vol.52 (4), p.2988-2995
Main Authors: Arkkio, Antero, Holopainen, Timo P.
Format: Article
Language:English
Subjects:
Asynchronous rotating machines
Bars
Damping
Electromagnetics
finite-element methods
Frequency response
Induction motors
Iron
Mathematical analysis
modeling
Motors
Numerical models
Rotors
Skin effect
torque
Torsional vibration
Vibrations
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Summary:Electromagnetic response of induction motors to torsional vibration is studied using space-vector and finite-element (FE) models. Comparison of the results shows that the skin effect in the rotor bars plays an important role, and the basic space-vector model has to be updated to a double-cage or triple-cage model. The results of the higher order models agree well with those of the FE analysis as long as motors with semiopen rotor slots are studied. In case of closed rotor slots, the saturation of the iron bridges on top of the bars causes problems in modeling accuracy.
ISSN:0093-9994
1939-9367
DOI:10.1109/TIA.2016.2547361