Title :
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
fDate :
11/1/1993 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
