Performance Prediction of a Tubular Linear Induction Motor utilizing the effect of Flux-Concentration by Eddy Currents

This paper has reported the performance of a tubular linear induction motor based on the principle of flux-concentration by eddy currents. In the developed Flux-Concentration type Linear Induction Motor (FCLIM) the key element is the conducting plate inserted between the exciting coils in each slot. In FCLIM the leakage flux is reduced and more flux is concentrated into the air gap . Thrust characteristics are compared using the equivalent circuit parameters and also verified experimentally. Some losses are occurred in the plate but the overall efficiency of the FCLIM is better at higher output force. The developed FCLIM is suitable for short linear motion and lower speed applications.