Host: The Japan Society of Mechanical Engineers
Name : Dynamics and Design Conference 2018
Date : August 28, 2018 - August 31, 2018
In this paper, a new model of homopolar-consequent integrated type 5-DOF self-bearing motor is proposed. It possesses the function of a motor, two radial magnetic bearings, and an axial magnetic bearing. The rotor consists of two reluctance type rotors with consequent pole permanent magnets, two homopolar permanent magnets and a circular disc in the center. The homopolar PMs and the consequent pole PMs generate high bias magnetic fluxes. By the additional consequent PMs, airgap bias fluxes are increased. Therefore it is possible to improve the rotation torque of the proposed motor. The radial direction forces can be controlled without any rotating magnetic field information. Furthermore, in the radial control and the axial control, the fluxes don't interfere at simultaneous control. The proposed motor models are analyzed by three dimensional finite element methods. The experimental setup is made and tested. From the results, the proposed homopolar-consequent integrated type 5-DOF self-bearing motor shows high feasibility for bi-ventricular assist device or total artificial heart.
