Comparison of Permanent-Magnet-Type Magnetic-Geared Motors

Abstract

We have proposed a variety of magnetic-geared motors. Among them, magnetic-geared motors with permanent magnets in the high-speed rotor and stator slots are superior to the others in terms of the transmission and excitation torques. In this paper, we compare 2 types of magnetic-geared motors which have permanent magnets in the stator slots. The characteristics are compared using finite element analysis coupled with vector control. Finally, the computed characteristics are verified by carrying out measurements on a prototype.