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Table 2

Critical parameters obtained by MOPSO.

Performance parameter Value Performance parameter Value
The outer diameter of the stator core (mm) 124.35 Number of stator slots 24
The inner diameter of the stator core (mm) 310.88 Number of parallel coils 39
Length of stator core (mm) 346.25 Number of series turns of each phase winding 3
Length of the air gap (mm) 0.45 The thickness of the sheath (mm) 4.5
The outer diameter of a permanent magnet (mm) 121.38 The thickness of the permanent magnet (mm) 3.01
The inner diameter of the permanent magnet (mm) 70.84 Width of permanent magnet (mm) 15.02
Pole-pairs 1 The volume flow of oil (m3/s) 13983.61
Calculated pole-arc coefficient 0.72 Area of radiator /m2 0.0653
Permissible stress (N/m2) 134.20    

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