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A Novel Five-Phase Fractional Slot Concentrated Winding with Low Space Harmonic Contents

Archive ouverte : Article de revue

Zhao, B. | Gong, J. | Tong, T. | Xu, Y. | Semail, E. | Nguyen, N. -K. | Gillon, F.

Edité par HAL CCSD ; Institute of Electrical and Electronics Engineers

International audience. In this article, a novel five-phase fractional-slot concentrated winding (FSCW) with 20-slot/22-pole is presented. It benefits notonly the advantages of conventional FSCW but also weak space harmonics of magnetomotive force (MMF). The winding allowseliminating the first sub-order harmonic. The new layout of the winding topology is obtained by a combination of stator shifttechnique of the winding in the slots with a special coupling of the windings (star-pentagon), using winding function theory. Thehigh performances of the new winding layout are validated using the finite element method (FEM). Compared to the conventional winding, the winding factor and the total harmonic distortion (THD) of MMF are improved by 1.3% and 2.2%, respectively. With the same injection of current density, the average output torque is increased by 1% and the torque ripple is decreased by 60%.The eddy current losses in the permanent magnets (PMs) at rated speed (600 r/min) and 2100 r/min speed are improved by 67% and 56%, respectively.

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