FEM-based design of an induction motor's part winding to reduce the starting current

The goal of this research is designing the part winding of an induction motor in order to reduce the surge currents when starting. The analyzed motor is to be built for special compressor applications; therefore, the standard star-delta windings are inappropriate. Until recently, winding schemes hav...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2006-04, Vol.42 (4), p.1299-1302
Main Authors: Stermecki, A., Ticar, I., Zagradisnik, I., Kitak, P.
Format: Article
Language:English
Subjects:
Cross-disciplinary physics: materials science
rheology
Design engineering
Exact sciences and technology
Finite-element method (FEM)
Induction motors
machine windings
Magnetic field measurement
Magnetic fields
Magnetic materials
Magnetism
Materials science
Mathematical analysis
Mathematical models
Motors
Numerical analysis
Numerical models
Other topics in materials science
Physics
Process design
Rotors
Surges
Torque
Transient analysis
Winding
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Summary:The goal of this research is designing the part winding of an induction motor in order to reduce the surge currents when starting. The analyzed motor is to be built for special compressor applications; therefore, the standard star-delta windings are inappropriate. Until recently, winding schemes have been chosen using different analytical and experiential criteria. In this paper, a design process is presented based on transient numerical analysis with the rotation of the rotor also taken into consideration. The developed numerical model enables a study of the motor's performance under arbitrary load conditions, and, thus, the entire torque characteristics of the motor can be predicted. Furthermore, the effects of eddy currents in the motor shaft material and their influence on the magnetic field and the motor's performance have been analyzed. The numerical results have been verified by laboratory measurements
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2006.871591