Simplified 3-D Modeling for Skewed Rotor Slots With End-Ring of Cage Induction Motors

摘要

A novel method for the 3-D modeling of skewed rotor slots with an end-ring in cage induction motors is proposed. The method allows sufficiently an accurate analysis of the magnetic field within acceptable computational costs. An interbar current analysis of a cage induction motor can be carried out by combining the proposed model with a homogenization method. The validity of the approach is demonstrated in the analysis of a cage induction motor with semiclosed rotor slots.