The purpose of this paper is an accurate computation of eddy currents in laminated media with minimal computer resources.
Modeling each laminate of the laminated core of electrical devices requires prohibitively many finite elements (FEs). To overcome this restriction a higher order multi-scale FE method with the magnetic vector potential
has been developed to cope with 3D problems considering edge effects.
The multi-scale FE approach facilitates an accurate simulation of the eddy current losses with minimal computer resources. Numerical simulations demonstrate a remarkable accuracy and low computational costs. The effect of regularization on the results is shown.
The eddy current losses are of great interest in the design of electrical devices with laminated cores.
The multi-scale FE approach takes also into account of the edge effects in 3D.
Hollaus, K. and Schöberl, J. (2015), "Multi-scale FEM and magnetic vector potential A for 3D eddy currents in laminated media", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 34 No. 5, pp. 1598-1608. https://doi.org/10.1108/COMPEL-02-2015-0090Download as .RIS
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