End Winding Inductance Analysis of the Three-Phase Induction Motor

In this paper, the influence of the end winding leakage inductance on the three-phase induction motor characteristics has been investigated. The most common analytical equations used for the end winding leakage inductance calculations are analyzed, compared and implemented into the finite element method based models of the induction machine. The main differences between the end winding leakage inductance calculation approaches have been identified via comparison of the output motor characteristics obtained from the 2D numerical models. Based on the 2D numerical simulations the prototype was produced. The experimental measurements were performed to determine the most appropriate analytical equations for the end winding calculation.