PMLSM의 전기자 분산배치에 의한 단부코깅력에 관한 연구

Abstract

The linear motor for transportation system generally applies the long stator system which arranges the armature at the full length of transportation lines. When this system is applied to the long distance transportation system, it causes problems such as the increase of material cost and manufacturing time. In order to solve these problems, a stationary discontinuous armature method which arranges the armature only in the areas where the acceleration and deceleration are needed has been proposed. However, the stationary discontinuous armature method has problems such as generating a cogging force greatly by the edge of armature and is impossible of mover control when the mover stops by the disturbance at the freewheeling section where the armature is not located. Therefore, in order to propose a new method of stationary discontinuous armature which the control of the mover is possible at any position, we analyze the cogging force according to the distance between armatures and derive the optimal distance between armatures.