Title :
Homogenization algorithms for calculation of field quantities in laminated magnetic materials
Author :
Krah, J.H. ; Bergqvist, A. ; Engdahl, G.
Author_Institution :
Dept. of Electr. Eng., Kungl Tekniska Hogskolan, Stockholm, Sweden
fDate :
9/1/2002 12:00:00 AM
Abstract :
A recently suggested homogenization procedure for the calculation of field quantities in laminated electric steel has proved to considerably speed up the calculation time. One limitation of this method is that it only works in situations where the skin effect is small. This paper presents some approaches to extend the method such that substantial skin effects can be treated.
Keywords :
eddy current losses; ferromagnetic materials; finite difference methods; iron alloys; laminations; magnetic fields; magnetic flux; silicon alloys; skin effect; Fe-Si; Taylor series; discrete series magnetomotive forces; dispersion equation; dual Cauer circuit; eddy currents; effective B-H curves; effective field strength; effective flux density; electric steel; field quantities; finite-difference approximation; flux density; homogenization algorithms; laminated magnetic materials; nonlinear conditions; parabolic function; skin effect; spatial distribution; time derivative; Eddy currents; Equations; Finite difference methods; Laminates; Magnetic circuits; Magnetic flux; Magnetic materials; Skin effect; Spatial resolution; Steel;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2002.803583
