Title :
3-D eddy current analysis in a silicon steel sheet of an interior permanent magnet motor
Author :
Kawase, Yoshihiro ; Yamaguchi, Tadashi ; Sano, Shinya ; Igata, Masao ; Ida, Kazuo ; Yamagiwa, Akio
Author_Institution :
Dept. of Inf. Sci., Gifu Univ., Japan
fDate :
5/1/2003 12:00:00 AM
Abstract :
Interior permanent magnet (IPM) motors are widely used in various fields. It is important for the high-efficiency operation of IPM motors to clarify the iron loss. In this paper, the harmonic eddy current loss and the hysteresis loss of a piece of silicon steel sheet of an IPM motor are calculated using the three-dimensional finite-element method (3-D FEM). It quantitatively clarifies the effects of the phase difference between the induced voltage and the coil current on the torque and the iron loss (the eddy current loss and the hysteresis loss).
Keywords :
eddy current losses; finite element analysis; machine theory; magnetic hysteresis; permanent magnet motors; silicon alloys; steel; torque; 3D eddy current analysis; 3D finite-element method; FeSi; IPM motors; Si steel sheet; coil current; harmonic eddy current loss; high-efficiency operation; hysteresis loss; induced voltage; interior PM motors; interior permanent magnet motor; iron loss; magnetic field analysis; phase difference; three-dimensional FEM; torque; Coils; Eddy currents; Finite element methods; Hysteresis motors; Iron; Magnetic analysis; Permanent magnet motors; Silicon; Steel; Voltage;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2003.810511