Comparative Analysis of Single-Layer and Double-Layer Windings in Three-Phase Squirrel-Cage Induction Machines Using FEA and d-q Modelling

This paper presents a comprehensive multi-method comparative study on the influence of single-layer and double-layer winding configurations on the static performance of three-phase squirrel-cage induction machines. By integrating high-fidelity finite element analysis (FEA) with dynamic modeling in the d-q reference frame using the Park transformation, we quantify their effects on magnetic flux distribution, magnetizing and leakage inductances, and core saturation behavior. The results reveal that double-layer windings provide superior flux homogeneity and improved inductive linearity, thus simplifying vector control. Despite increased manufacturing complexity and higher end-winding losses, this configuration improves overall electromagnetic performance, justifying its suitability for industrial applications requiring high efficiency and torque stability.