A study of the effect of the stator tooth shape on the characteristics of three-phase induction motor with concentrated windings

As the prime mover of industrial machines, the three-phase squirrel-cage induction motor (IM) has been typically used. Consequently, further price reduction has been required. Although the price has decreased on account of its change from distributed winding to concentric winding, IM with concentric winding has not been adequately studied. Therefore, in this study, we have examined the potential of IM with concentric winding. In this paper, we present the analysis results of IM with concentric winding. The effect of stator tooth shape on the characteristics of a three-phase induction motor with concentrated winding is clearly shown using finite element method (FEM) analysis.