Efficiency of the linear induction motor (LIM) performance under constant voltage feeding-additional finite elements considerations

The aim of this work is to present a mathematical model for the linear induction motor, this model allows estimation of its efficiency, considering the winding space harmonics. This work followed the strategy of research among rotary machines to find the one which could be the base of all the studies. The machine found, was the rotary three-phase asymmetrical induction motor. This is justified by the inherent asymmetry characteristic of LIM that comes from building aspects. Experimental procedures with a LIM prototype makes viable the theoretical against experimental tests to make the validation for the proposed model. A special section is dedicated to electromagnetic aspects of the LIM through finite element analysis.