Title :
Effects of Permanent-Magnet Passive Magnetic Bearing on a Two-Axis Actively Regulated Low-Speed Bearingless Motor
Author :
Asama, Junichi ; Asami, Tetsuro ; Imakawa, Takashi ; Chiba, Akira ; Nakajima, Atsushi ; Rahman, M. Azizur
Author_Institution :
Dept. of Mech. Eng., Shizuoka Univ., Shizuoka, Japan
fDate :
3/1/2011 12:00:00 AM
Abstract :
Performance comparisons in a bearingless motor with and without passive magnetic bearings (PMBs) are presented. The bearingless motor is actively controlled in two perpendicular-axes. The axial and conical movements are supported by PMBs. The experimental results are compared to the calculated ones by 3-D finite-element method. Effectiveness of PMBs is analytically and experimentally investigated in both static and dynamic tests. It is found that a rotational test is successful only with the PMBs.
Keywords :
finite element analysis; magnetic bearings; permanent magnet motors; 3D finite element method; axial movement; bearingless motor; conical movement; consequent pole; permanent-magnet passive magnetic bearing; Bearingless motor; consequent pole; magnetic suspension; passive magnetic bearing (PMB); permanent magnet (PM) motor;
Journal_Title :
Energy Conversion, IEEE Transactions on
DOI :
10.1109/TEC.2010.2073709
