Abstract
An active magnetic bearing system can support a rotating shaft without any mechanical contact. Therefore it has been used such as an ultra-low temperature, a vacuum, and a clean environments. To realize the downsizing of the system and the high-speed rotation, 5-axis self-bearing motor has been proposed. In this paper, homopolar type hybrid 5-DOF self-bearing motor is proposed. The rotor consists of two rotors, two circular discs, and a permanent magnet. It possesses a motor, two radial magnetic bearings, and an axial magnetic bearing. Furthermore it is possible to control the rotor radial position without the information of the rotating angle. The analytical results show the feasibility of a compact and high reliable actuator for an artificial heart pump.
