Abstract
Hybrid active magnetic bearing (AMB) type self-bearing motor has been proposed. It is intended for a motor to have both functions of rotation and radial position control. Miniaturization is necessary to install in small rotary machines. In this paper, HB slice motor is proposed. Outer rotor type motor is designed. The rotor is actively controlled only in radial directions while the axial and tilt directions are passively stable due to the disc structure of the rotor. First, the concept of proposed HB slice motor is introduced. Then the minimum pole number is theoretically derived which guarantees the control independency of rotation and levitation. Finally, the experimental setup is made to confirm the capability of the proposed motor. The results show high stability and high rotating torque of the proposed motor.
