Title :
Analysis of eddy currents in surface layer of laminated core in magnetic bearing system using leaf edge elements
Author :
Muramatsu, Kazuhiro ; Shimizu, Tsuyuki ; Kameari, Akihisa ; Yanagisawa, Ichiro ; Tokura, Susumu ; Saito, Osamu ; Kaido, Chikara
Author_Institution :
Dept. of Electr. & Electron. Eng., Saga Univ.
fDate :
4/1/2006 12:00:00 AM
Abstract :
In order to calculate the eddy current losses in the thin surface layer of a laminated core, in which the insulation between steel sheets is broken by a process of a polish, the leaf element is expanded into the edge finite element method. Several treatments for the leaf element are illustrated and the effectiveness is investigated by using a simple model. Then, the effect of the surface layer on the iron losses is discussed in an actual magnetic bearing system
Keywords :
eddy current losses; finite element analysis; magnetic bearings; magnetic cores; eddy currents losses; finite element method; iron losses; laminated core; leaf edge elements; magnetic bearing system; thin surface layer; Eddy currents; Equations; Finite element methods; Industrial electronics; Iron; Magnetic analysis; Magnetic cores; Magnetic levitation; Steel; Surface treatment; Finite element method; laminated core; leaf element; magnetic bearing;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2006.872518
