Title :
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
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;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2011.2171923
