Affiliations: College of Science and Engineering, Ritsumeikan University, Kusatsu, Shiga, Japan
Correspondence:
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Corresponding author: Satoshi Ueno, Department of Mechanical Engineering, College of Science and Engineering, Ritsumeikan University, 1-1-1 Noji-Higashi, Kusatsu, Shiga, Japan. E-mail:sueno@se.ritsumei.ac.jp
Abstract: In this paper, a novel disk type permanent magnetic motor
which can actively control five degrees of freedom (5-DOF) of rotor postures
without any contact has been proposed. Hence, although it has similar
structure with an original Axial-Gap Self-Bearing Motor (ASBM), other radial
magnetic bearings and its shaft of the rotor can be removed. Moreover, the
number of stator coils is minimized; therefore, the structure and control
system of the motor are simplified. This paper illustrates the structure and
control principle of the proposed motor, and then the electromagnetic
characteristics calculated by three-dimensional magnetic field FEM analyses
are shown. An experimental device whose dimensions was determined based on
simulation results was manufactured and tests were carried out to
demonstrate the feasibility of the proposed motor.
Keywords: ASBM, 5-DOF active control, magnetic bearing
