Title :
Stiffness analysis of a magnetically suspended bearingless motor with permanent magnet passive positioning
Author :
Asami, Kazuyoshi ; Chiba, Akira ; Rahman, M. Azizur ; Hoshino, Takeshi ; Nakajima, Atsushi
Author_Institution :
Dept. of Electr. Eng., Tokyo Univ. of Sci., Chiba, Japan
Abstract :
In this paper, a magnetically suspended drive is proposed with two-axis active position regulation having one unit of a bearingless motor for possible flywheel applications. For the other unit, a three-axis positioning is supported by passive magnetic bearings. Basic force and stiffness characteristics are investigated by three-dimensional (3-D) magnetic-field analysis.
Keywords :
magnetic bearings; magnetic fields; permanent magnet motors; permanent magnets; 3D magnetic field analysis; bearingless motor; flywheel applications; magnetically suspended drive; passive magnetic bearings; permanent magnet; position regulation; stiffness analysis; Flywheels; Magnetic analysis; Magnetic flux; Magnetic levitation; Motor drives; Permanent magnet motors; Permanent magnets; Rotors; Stator cores; Torque; Flywheel; bearingless motor; magnetic bearing;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2005.854933
