Abstract
In this paper, electromagnetic performances of 12-phase 24-stator-pole redundant switched flux permanent magnet (SFPM) machines with 20-, 22-, 26-, and 28-rotor-pole rotors designed for wind power generation are comparatively analyzed. The influence of key design parameters on the open-circuit phase electromotive force and cogging torque is comparatively evaluated by a 2-D finite-element analysis (FEA). FEA results show that the 24-/26-pole SFPM machine exhibits the highest electromagnetic torque and efficiency than the other three, while the 24-/22-pole one has the smallest cogging torque and torque ripple as well as relatively good voltage regulation and efficiency, which are essential for a wind generator. Furthermore, the investigation on redundancy performance shows that cross coupling among the four sets of three-phase balanced windings and the saturation effect can be neglected when the generator operates with relative light loads. Finally, the 12-phase 24-/22-pole SFPM machine is built and tested to validate the simulations.
| Original language | English |
|---|---|
| Article number | 7875405 |
| Pages (from-to) | 3305-3316 |
| Number of pages | 12 |
| Journal | IEEE Transactions on Industry Applications |
| Volume | 53 |
| Issue number | 4 |
| Early online date | 10 Mar 2017 |
| DOIs | |
| Publication status | Published - 15 Jul 2017 |
Keywords
- 12 phase
- flux switching
- permanent magnet (PM)
- redundancy
- stator/rotor pole
- switched flux (SF)
- wind power generation
ASJC Scopus subject areas
- Control and Systems Engineering
- Industrial and Manufacturing Engineering
- Electrical and Electronic Engineering