A coupled vector-scale potential method for permanent magnetic modeling in large-scale 3D-FE magnetic field computations

Author

Alhamadi, M.A. ; Damerdash, N.A.

Author_Institution

Qatar Univ., Doha

Volume

29

Issue

6

fYear

1993

fDate

11/1/1993 12:00:00 AM

Firstpage

2401

Lastpage

2403

Abstract

A magnetic scalar potential (MSP) formulation to model permanent magnet volumes is introduced. This formulation is suited for use in coupled vector-scalar magnetic potential (CMVP-MSP) 3-D-FE computations of large-scale magnetic field problems in electric machinery and devices. A new approach for direct calculation of armature winding flux linkages and associated induced emfs, from 3-D-FE solutions, using stored energy and excitation function perturbation techniques, is introduced. A case-study permanent magnet brushless DC machine is used to demonstrate the utility of this method

Keywords

DC machines; finite element analysis; machine windings; magnetic fields; permanent magnets; perturbation techniques; armature winding flux linkages; case-study permanent magnet brushless DC machine; coupled vector-scale potential method; electric machinery; excitation function perturbation techniques; induced emfs; large-scale 3D-FE magnetic field computations; magnetic scalar potential; permanent magnetic modeling; stored energy; Coercive force; Couplings; Large-scale systems; Magnetic anisotropy; Magnetic flux; Magnetic materials; Magnetization; Maxwell equations; Perpendicular magnetic anisotropy; Surface fitting;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.281003

Filename

281003