Title :
Magnetic field analysis of permanent magnet motor with magnetoanisotropic materials Nd-Fe-B
Author :
Enokizono, M. ; Takahashi, S. ; Kiyohara, T.
Author_Institution :
Dept. of Electr. & Electron. Eng., Oita Univ., Japan
fDate :
5/1/2003 12:00:00 AM
Abstract :
In this paper, we propose the method to analyze the magnetization distribution in magnetoanisotropic materials by using the finite-element method considering the improved variable magnetization and Stoner-Wohlfarth model. By using this method, furthermore, the effect of the eddy currents induced in permanent magnets was analyzed. From the analyzed result, it is clarified how the magnetization distribution affects the performance of the surface permanent magnet-type motors.
Keywords :
boron alloys; eddy currents; ferromagnetic materials; finite element analysis; iron alloys; magnetic anisotropy; neodymium alloys; permanent magnet motors; Nd-Fe-B; Stoner-Wohlfarth model; eddy currents; finite-element method; magnetic field analysis; magnetization distribution; magnetoanisotropic materials; surface permanent magnet-type motors; variable magnetization; Anisotropic magnetoresistance; Demagnetization; Magnetic analysis; Magnetic anisotropy; Magnetic fields; Magnetic materials; Magnetization; Permanent magnet motors; Permanent magnets; Perpendicular magnetic anisotropy;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2003.810422
