Fast optimization of electromagnetic-problems: the reduced-basis finite element approach

Author

Jabbar, M.A. ; Azeman, Azmi Bin

Author_Institution

Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore

Volume

40

Issue

4

fYear

2004

fDate

7/1/2004 12:00:00 AM

Firstpage

2161

Lastpage

2163

Abstract

A reduced-basis finite element method has been used as a fast and accurate alternative to standard finite element algorithms for optimization problems. Improvement in computational speed is derived from the use of a single static mesh for "basis" calculations and through application of geometric transformations for regions where variations are required. The method is applied on an eight-pole/six-slot spindle motor for cogging torque minimization. The desired outcome is a robust algorithm with the accuracy of finite element analysis and improved speed of computation.

Keywords

finite element analysis; optimisation; permanent magnet machines; torque motors; basis calculations; cogging torque minimization; computational speed; electromagnetic problems; fast optimization; finite element algorithms; finite element analysis; geometric transformations; optimization problems; reduced-basis finite element approach; robust algorithm; spindle motor; static mesh; Cost function; Finite element methods; Forging; Magnetic fields; Matrices; Minimization methods; Optimization methods; Poisson equations; Robustness; Torque; Electromagnetic; finite-element; optimization; reduced-basis;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2004.829184

Filename

1325439