A Study on Design Guidelines for Double-Cage Induction Motors Using Finite Element Method Analysis

Due to global demands for decarbonization, industrial induction motors are required to achieve higher efficiency. For applications requiring high starting torque and low inrush current, using high-resistance materials for the secondary conductors is effective. However, it may lead to reduced efficiency during rated operation. Double-cage induction motors, which use conductors with different resistivities, are a viable solution. This study investigates design guidelines based on the analysis of finite element method (FEM), which account for magnetic saturation effects.