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

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2 Author(s)
Alhamadi, M.A. ; Qatar Univ., Doha ; Damerdash, N.A.

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

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Magnetics, IEEE Transactions on  (Volume:29 ,  Issue: 6 )