Parallel Time-Periodic Finite-Element Method for Steady-State Analysis of Rotating Machines

Author

Takahashi, Yasuhito ; Iwashita, Takeshi ; Nakashima, Hiroshi ; Tokumasu, Tadashi ; Fujita, Masafumi ; Wakao, Shinji ; Fujiwara, Koji ; Ishihara, Yoshiyuki

Author_Institution

Dept. of Electr. Eng., Doshisha Univ., Kyoto, Japan

Volume

48

Issue

2

fYear

2012

Firstpage

1019

Lastpage

1022

Abstract

This paper investigates the parallelization of the time-periodic finite-element method in nonlinear magnetic field analyses of rotating machines. The developed method, which can obtain the steady state solutions directly, provides large granularity even in the small-scale problems compared with the ordinary parallel FEM based on the domain decomposition approach. Furthermore, we apply the parallel TPFEM to analyses of induction motors which have different time periodicities in stator and rotor regions due to the slip. Numerical results verify the effectiveness of the developed method.

Keywords

finite element analysis; induction motors; magnetic fields; domain decomposition approach; induction motors; nonlinear magnetic field analysis; ordinary parallel FEM; parallel TPFEM; parallel time-periodic finite-element method; rotating machine steady-state analysis; rotor regions; Convergence; Equations; Finite element methods; Induction motors; Rotors; Steady-state; Transient analysis; Parallel computing; rotating machinery; steady state; time-periodic finite-element method;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2011.2171923

Filename

6136784