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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