Abstract
Magnetic bearings can support rotating shafts without any contact and have been used in special conditions such as in cryogenic, vacuum, and clean environments. In this paper, consequent-pole type 5-DOF self-bearing motor is proposed. By using this motor structure, the rotor radial and tilt position control is easily possible because the forces and torques don’t depend on the rotational angle of the rotor. The three-dimensional magnetic field analysis using the finite element method is carried out. Based on these analysis results, the experimental setup was made and the motor performances are confirmed. Though the further improvement of the motor efficiency is necessary, the consequent-pole type 5-DOF self-bearing motor satisfies the target motor torque and shows the feasibility as an artificial heart pump.
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