Abstract
This paper presents a semi-analytical model for predicting cogging torque based on harmonic interaction principle within the airgap. It derives the airgap's magnetic energy through Fourier expressions of the rotor magnetomotive force in motion and the airgap permeance considering slotting effects. The analytical expression for cogging torque is then obtained by differentiating the airgap magnetic energy with respect to motion. This model is distinguished by its fast computational speed and high accuracy compared to the finite element method, making it advantageous for large-scale design optimization. Notably, the model can analyze the factors influencing cogging torque, offering theoretical insights for cogging torque reduction.
| Original language | English |
|---|---|
| Pages (from-to) | 1-5 |
| Number of pages | 5 |
| Journal | IEEE Transactions on Magnetics |
| DOIs | |
| Publication status | Published - 13 Mar 2025 |
Keywords
- analytical model
- cogging torque
- harmonic
- Permanent magnet machines
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering