Optimal Design of Reformed Auxiliary Teeth for Reducing End Detent Force of Stationary Discontinuous Armature PMLSM

Abstract

Although a permanent-magnet linear synchronous motor enables high speed and high thrust compared with rotational equipment, its application in long-distance transport systems has been delayed because of high installation costs. Therefore, by proposing a stationary discontinuous armature system that installs an armature only at the parts accelerating and decelerating the mover, this paper mitigates the problem of installation cost. In addition, we propose a novel shape for auxiliary teeth for the armature end of the proposed system to reduce the detent force causing noise and vibration in the equipment.