A time-stepped 2D-3D finite element method for induction motors with skewed slots modeling

Author

Dziwniel, P. ; Piriou, F. ; Ducreux, J.P. ; Thomas, P.

Author_Institution

L2EP, USTL, Villeneuve d´´Ascq, France

Volume

35

Issue

3

fYear

1999

fDate

5/1/1999 12:00:00 AM

Firstpage

1262

Lastpage

1265

Abstract

To model an induction motor with skewed rotor bars, we propose a hybrid 3D approach using the 2D invariant hypothesis. Our method is coupled with the electric circuit equations for both the stator and the rotor. We take into account the magnetic materials nonlinearity. The mechanical rotation is modeled, using the slipping surface technique. The obtained results are compared with measurements and results of the 2D standard model, which was applied to a similar motor but with an unskewed rotor

Keywords

finite element analysis; induction motors; machine theory; magnetic materials; rotors; stators; 2D invariant hypothesis; electric circuit equations; hybrid 3D approach; induction motors; magnetic materials nonlinearity; mechanical rotation modeling; rotor; skewed rotor bars; skewed slots modeling; slipping surface technique; stator; time-stepped 2D-3D finite element method; Bars; Coupling circuits; Current density; Equations; Finite element methods; Induction motors; Read-write memory; Rotors; Solid modeling; Stators;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.767180

Filename

767180