Abstract
Fractional Slot Concentrated Winding (FSCW) have short end-winding resulting in lower copper loss. Single layer and double layer FSCW have sub harmonics and higher order harmonics of significant magnitude. This results in high leakage inductance and low saliency ratio in synchronous reluctance motor. In this paper, the impact of multi-layered FSCW on synchronous reluctance motor designs is studied. Multiple slot-pole combinations are considered for selection of winding distribution with lower harmonic content. A four-layer FSCW design with lower winding harmonic content is selected for motor design. The motor performance is analyzed using finite element analysis. The motor shows significantly low torque and voltage ripple. Improvements in performance are compared with conventional two layered FSCW synchronous reluctance motor.
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