Characteristics of two-phase levitated linear induction motor

This paper presents characteristics of a two-phase levitated linear induction motor (LIM). LIMs are used in many industries as a transportation system. In a semiconductor factory, to produce dust during conveyance is not allowed. We developed the linear induction motor, used at such a factory. This system is AC induction type, and its secondary conductor completely levitates and moves above a stator by noncontact. In this paper, we propose a secondary conductor using the self-shading effect for stability levitation. The validity of the proposed method is demonstrated by comparing the calculated results of finite element method with experiments.