Vector potential 3D-finite element modeling of magnetic fields in permanent magnet devices

Author

Alhamadi, M.A. ; Wang, R. ; Demerdash, N.A.

Author_Institution

Dept. of Electr. & Comput. Eng., Clarkson Univ., Potsdam, NY, USA

Volume

27

Issue

6

fYear

1991

fDate

11/1/1991 12:00:00 AM

Firstpage

5016

Lastpage

5018

Abstract

A three-dimensional finite element (FE) MVP (magnetic vector potential) formulation for electromagnetic devices containing permanent magnets is presented. The method is based on developing models for the first and second order tetrahedral type elements. An example magnetic circuit of an electrical device containing a samarium-cobalt permanent magnet is used to verify the two models. It appears that results from second order FE grids are closer to the analytical value than those from first order FE grids, with the smoothness of the bending of the B ¯ vector arrows strongly reflected in the results of the second order FE grid example

Keywords

electromagnetic devices; finite element analysis; magnetic circuits; magnetic devices; magnetic fields; 3D-finite element modeling; SmCo₅ permanent magnet; electromagnetic devices; first order FE grids; magnetic circuit; magnetic fields; magnetic vector potential; permanent magnet devices; second order tetrahedral type elements; Integral equations; Magnetic anisotropy; Magnetic circuits; Magnetic cores; Magnetic fields; Magnetic materials; Magnetic separation; Magnetization; Permanent magnets; Perpendicular magnetic anisotropy;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.278725

Filename

278725