Select number of stator slots and suitable three phase winding layout
(experience).
Less slots: 1)less cost 2) less space lost due to insulation and slot
opening;
More slots: 1) smaller leakage inductance and larger breakdown
torque 2) small MMF harmonics 3) better cooling
Typically, stator teeth width between ¼’’ and 1’’, ratio of slot
width to slot pitch between 0.4 and 0.6 (Ref [2] Lipo)