A novel approach to circuit-field-torque coupled time stepping finite element modeling of electric machines

Author

Ho, S.L. ; Li, H.L. ; Fu, W.N. ; Wong, H.C.

Author_Institution

Dept. of Electr. Eng., Hong Kong Polytech. Univ., China

Volume

36

Issue

4

fYear

2000

fDate

7/1/2000 12:00:00 AM

Firstpage

1886

Lastpage

1889

Abstract

This paper presents a sub-block algorithm for the time stepping finite element solution of problems in which sets of electromagnetic field equations, circuit equations and mechanical equation are coupled together. The proposed method ensures that identical solutions are obtained for the sub-blocks by controlling the step size of the time stepping process. This new method simplifies the process of dealing with coupled-system problems and it also greatly reduces the computation time. A time stepping finite element model of an induction motor is used to demonstrate the proposed method in details

Keywords

electromagnetic fields; finite element analysis; induction motors; machine theory; torque control; circuit equations; circuit-field-torque coupled time stepping finite element modeling; coupled-system problems; electric machines; electromagnetic field equations; induction motor; mechanical equation; sub-block algorithm; Circuit simulation; Coupling circuits; Electric machines; Electromagnetic coupling; Electromagnetic fields; Equations; Finite element methods; Induction motors; Rotors; Size control;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.877813

Filename

877813