Simulation of induction machine operation using complex magnetodynamic finite elements

Author

Vassent, E. ; Meunier, G. ; Sabonnadier, J.C.

Author_Institution

Lab. d´´Electrotech. de Grenoble, ENSIEG, St. Martin d´´Heres, France

Volume

25

Issue

4

fYear

1989

fDate

7/1/1989 12:00:00 AM

Firstpage

3064

Lastpage

3066

Abstract

The nonlinear magnetodynamic model implemented in FLUX2D is improved in order to solve the field equations in an induction motor with a highly saturated slot isthmus. The resulting method is an extension to the harmonic solution of nonlinear magnetodynamic problems using the classical finite-element method. This extension applies the nonlinear Newton-Raphson algorithm in the same way as for magnetostatic problems, using the Jacobian matrix presented. The forces and torques obtained by this algorithm are quite identical to those results obtained by a step-by-step simulation. Applied to an industrial four-pole, squirrel cage induction machine, this method gives over the whole range of speed an error less than 5%

Keywords

electromagnetic fields; finite element analysis; harmonics; simulation; squirrel cage motors; FLUX2D; Jacobian matrix; field equations; forces; harmonic solution; highly saturated slot isthmus; induction machine operation; magnetodynamic finite elements; magnetostatic problems; nonlinear Newton-Raphson algorithm; nonlinear magnetodynamic model; squirrel cage induction machine; step-by-step simulation; torques; Conducting materials; Convergence; Finite element methods; Induction machines; Induction motors; Jacobian matrices; Magnetic flux; Magnetic materials; Maxwell equations; Saturation magnetization;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.34370

Filename

34370