Performance of Fractional-Slot Winding PM Machines due to Un

WINDING The design of the armature winding involved , in addition to the fractional number of slots per pole The design selected had 191⁄2 slots

Fractional slot winding for an 18 slot, three-phase, four-pole machine Figure Five-phase machine vector distribution k k B Phase C (144

riot 2_ blow and burn slot Fractional slot tooth windings cause additional space harmonics in the air gap which cause additional torque ripple and rotor losses

fantasy 55 slot Abstract PM machines in which slot number and pole number combination differs by one have to be configured with asymmetric winding pattern in order to maximize