A double-sided stator type axial self-bearing motor development for total artificial heart
This paper proposed a self-bearing motor that has tilt control function and clarified its fundamental characteristics as a maglev motor and maglev pump. The rotor has eight permanent magnets on each side (sixteen PMs in total). The two stators have twelve poles each with two types of concentrated windings. One is for motoring and axial control; the other is for tilt control. The theoretical analysis clarified operating principle and showed that the proposed motor could control translational motion, inclinational and rotational movement independently. An experimental setup was fabricated, and the control performance of the self-bearing motor was also investigated. The fabricated prototype achieved a stable magnetically levitated rotation. In addition, the proposed axial self-bearing motor fabricated into a prototype of the maglev pump to investigate pump characteristics for a total artificial heart applications.