Title :
Finite element and finite difference analysis of losses in laminated material
Author :
Luk, L. ; Dawson, G.E. ; Eastham, A.R.
Author_Institution :
Dept. of Electr. Eng., Queen´´s Univ., Kingston, Ont., Canada
fDate :
11/1/1988 12:00:00 AM
Abstract :
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
Keywords :
difference equations; eddy current losses; finite element analysis; laminates; machine theory; magnetic cores; magnetic materials; alternator; eddy current losses; electric machines; ferromagnetic material; finite difference analysis; finite element analysis; laminated material; periodic excitation; planar component; pole face; quasistationary analysis; time-varying field; tooth ripple loss; transformer core; Boundary conditions; Eddy currents; Equations; Finite difference methods; Finite element methods; Geometry; Lamination; Magnetic flux; Magnetic materials; Magnetostatics;
Journal_Title :
Magnetics, IEEE Transactions on
