Characteristic Analysis of Vernier Motor with Permanent Magnets in Stator Core

Abstract

　This paper investigates a vernier motor which has permanent magnets in its stator. The stator of this vernier motor consists of an inner and outer cores. The air gap between cores increases the magnetic resistance. On the other hand, the inner bridge of inner stator increases the magnetic flux density of the permanent magnet. The operational principle of the vernier motor is described, and the performance of the vernier motor is discussed using 2-D FEM.