Abstract
This paper addresses the design and investigation of an improved torque density dc-biased Vernier reluctance machine (dc-biased-VRM), which is characterized by salient rotor structure, and merely one set of concentrated windings in stator. First, a 12-stator slot, 10-rotor slot dc-biased-VRM is designed. Then by analyzing the magnetic flux distribution with finite-element analysis, it is found that the flux always doesn't flow across half of the stator teeth. Therefore, these teeth are removed and a novel 6/10 dc-biased-VRM with 20% higher torque density is obtained. Besides, by optimizing the stator/rotor tooth width combination and tooth shape, the torque ripple is lowered. Finally, a prototype is manufactured and experimental results show good agreement that is observed between the simulation and test data for the proposed motor.
| Original language | English |
|---|---|
| Article number | 8401857 |
| Journal | IEEE Transactions on Magnetics |
| Volume | 54 |
| Issue number | 11 |
| DOIs | |
| State | Published - Nov 2018 |
Keywords
- Concentrated coil winding
- Vernier reluctance machine
- dc current biased
- open winding
- torque density
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