Table 1: Constraint & requirement of motor/generator.

Parameter Value Unit
Power 10 kW
Rated Speed / Torque 40000 / 2.39 rpm / Nm
Max Speed / Torque 80000 / 1.19 rpm / Nm
The number of Pole 2 -
Operating Temperature 200 °C
Stator Outer Diameter 90 mm
Axial Length 100 mm
Voltage Limit 400 Vdc
Current Limit 66 A
Current Density Limit 4.5 A / mm2
Magnet material SmCo (2:17) -
Core material 35PN230 -
Minimum Safety Factor 1.6 -