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

Article dans une revue avec comité de lecture
Author
ZHAO, B.
303447 Shandong Jiaotong University [Jinan]
GONG, J.
303447 Shandong Jiaotong University [Jinan]
TONG, T.
303447 Shandong Jiaotong University [Jinan]
463362 Nanchang University
XU, Y.
303447 Shandong Jiaotong University [Jinan]
ccSEMAIL, Eric
13338 Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 [L2EP]
NGUYEN, Ngac Ky
13338 Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 [L2EP]
GILLON, Frédéric
13338 Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 [L2EP]

URI
http://hdl.handle.net/10985/20777
DOI
10.1109/tmag.2021.3057650
Date
2021
Journal
IEEE Transactions on Magnetics

Abstract

In this article, a novel five-phase fractional-slot concentrated winding (FSCW) with 20-slot/22-pole is presented. It benefits not only the advantages of conventional FSCW but also weak space harmonics of magnetomotive force (MMF). The winding allows eliminating the first sub-order harmonic. The new layout of the winding topology is obtained by a combination of stator shift technique of the winding in the slots with a special coupling of the windings (star-pentagon), using winding function theory. The high 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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