Abstract
This paper investigates the influence of stator slots and rotor pole pairs combinations on torque performances in rotor permanent magnet flux switching (RPM-FS) machines. Based on a magnetomotive force (MMF) permeance model, the candidates of stator slots and rotor pole pairs combinations with higher torque capability can be determined by analyzing the PM-MMF and winding factor. Meanwhile, the candidates with a lower torque ripple can be obtained by referring to the cogging torque, which is related to the greatest common divisor of stator slots and rotor pole pairs. In addition, from the field modulation principle, the RPM-FS machines with the same fundamental magnetic loadings and winding factors exhibit identical fundamental harmonic torque, but different modulation harmonic components. Finally, four candidates with attractive torque performance are chosen, and the characteristics are verified by finite-element analysis and experiments.
| Original language | English |
|---|---|
| Article number | 8657961 |
| Pages (from-to) | 906-918 |
| Number of pages | 13 |
| Journal | IEEE Transactions on Industrial Electronics |
| Volume | 67 |
| Issue number | 2 |
| Early online date | 4 Mar 2019 |
| DOIs | |
| Publication status | Published - 1 Feb 2020 |
Keywords
- Analytical models
- finite-element analysis (FEA)
- flux switching (FS)
- permanent magnet (PM) machines
- rotors
- slots and pole pairs combination
- torque
ASJC Scopus subject areas
- Control and Systems Engineering
- Electrical and Electronic Engineering