A Combined Electromagnetic with Stress Loss Calculation Method for Pole Phase Modulated Multiphase Induction Motor

This paper presents an analytical novel method to estimate the core loss developed across the Pole Phase Modulated Multiphase Induction Motor using a combined electromagnetic and stress analysis method. The flux density distribution with losses developed is estimated from the 3D electromagnetic field analysis. The compressive stress developed due to shrinking across the stator and the tensile stress caused due to centrifugal force in the rotor part is calculated. The stress analysis helps to optimize the electromagnetic design by predicting the core loss coefficient and permeability which are the crucial parameters for the loss estimation and electromagnetic characteristics of PPMIM. The combined analysis determines the core loss and the vibrational, noise behavior of the designed motor. The estimated loss using the proposed method is validated experimentally.