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Finite element and finite difference analysis of losses in laminated material

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3 Author(s)
Luk, L. ; Dept. of Electr. Eng., Queen''s Univ., Kingston, Ont., Canada ; Dawson, G.E. ; Eastham, A.R.

Eddy-current losses in laminated ferromagnetic material are computed, using the finite-element and finite-difference methods. The excitation is periodic with only one component, and the theoretical development uses a quasistationary analysis in which only the planar component is considered in the laminated stack that is exposed to the time-varying field. Good agreement is found between analysis and test results for tooth ripple loss in the pole face of an alternator

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Magnetics, IEEE Transactions on  (Volume:24 ,  Issue: 6 )