Title :
A New Formulation of Anisotropic Equivalent Conductivity in Laminations
Author :
Wang, Jian ; Lin, Heyun ; Huang, Yunkai ; Sun, Xikai
Author_Institution :
Sch. of Electr. Eng., Southeast Univ., Nanjing, China
fDate :
5/1/2011 12:00:00 AM
Abstract :
The eddy current fields in a laminated iron core and a single lamination, where the fields are considered as the 2-D and the 1-D problems, respectively, are analyzed. Then a new and simple formulation of equivalent conductivity in the direction normal to the laminations is derived by equating the eddy current loss expressions obtained from the above two problems. The validity of the formulation is verified by comparing the eddy current losses, calculated with the finite-element method using the proposed conductivity formulation and a long known formula, in an analyzed model.
Keywords :
eddy current losses; finite element analysis; iron; laminations; magnetic cores; anisotropic equivalent conductivity; eddy current fields; eddy current loss; finite-element method; laminated iron core; single lamination; Analytical models; Conductivity; Eddy currents; Iron; Lamination; Magnetic cores; Steel; Eddy current; equivalent conductivity; finite-element method (FEM); laminations;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2010.2081352
