A Combined Vector Potential-scalar Potential Method for FE Computation of 3D Magnetic Fields in Electrical Devices with Iron Cores

Document Type

Article

Language

eng

Publication Date

9-1991

Publisher

Institute of Electrical and Electronic Engineers (IEEE)

Source Publication

IEEE Transactions on Magnetics

Source ISSN

0018-9464

Abstract

A method of combined use of magnetic vector potential based finite-element (FE) formulations and magnetic scalar potential (MSP) based formulations for computation of three-dimensional magnetostatic fields is introduced. In this method, the curl-component of the magnetic field intensity is computed by a reduced magnetic vector potential. This field intensity forms the basis of a forcing function for a global magnetic scalar potential solution over the entire volume of the region. This method allows one to include iron portions sandwiched in between conductors within partitioned current-carrying subregions. The method is most suited to large-scale global-type 3D magnetostatic field computations in electrical devices, and in particular rotating electric machinery.

Comments

IEEE Transactions on Magnetics, Vol. 27, No. 5 (September1991): 3971-3977. DOI.

N.A. Demerdash was affiliated with Clarkson University at the time of publication.

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