Characteristic analysis of tubular linear induction motor using axisymmetric model

Rotary machines have limitations at linear moving systems. So linear motors make good used of linear actuator. The purpose of this paper is concerned with the characteristic analysis to thickness of secondary conductor in TLIM using axisymmetric model. Characteristic equations of TLIM are obtained from voltage equation. Using finite element method (FEM), parameters of voltage equation are calculated. To consider secondary conductor effect FEM is performed at time-harmonic filed. And secondary resistance loss is calculated by eddy current using FEM. Consequently, The thrust force of TLIM according to goodness factor of secondary conductor thickness is compared. And then, this paper presents how to decide secondary conductor resistance.