Open Access
Table 1
Parameters of DMFMCM.
| Parameter | Values |
|---|---|
| Axial length of DMFMCM | 65 mm |
| Number of stator slots | 18 |
| Pole pairs number of armature winding | 4 |
| Pole pairs number of inner rotor permanent magnets | 14 |
| Pole pairs number of outer rotor permanent magnets | 49 |
| The number of modulation ring poles | 63 |
| Gear ratio | 2:7 |
| Rotating speed | 214 r/min |
| Material of stator and rotor core | DW360-50 |
| Inner diameter of the inner rotor | 154 mm |
| Outer diameter of the outer rotor | 184 mm |
| Thickness of the modulation pieces | 5 mm |
| Radial length of permanent magnet | 30 mm |
| Width of permanent magnet | 15 mm |
| Maximum thickness of the air gap | 1 mm |
| Remanence | 1.21T |
| Relative permeability | 1.07 |
| Radius of air gap | 153 mm |
| Permanent magnet material | NdFeB |
| Width of air gap | 1 mm |
| Number of air gaps | 3 |
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