volume | PIER Journals

Abstract

This paper proposes a high-thrust-density linear partitioned primary permanent magnet vernier (LPPPMV) machine based on an asymmetric winding configuration, leveraging the advantages of linear machines to avoid the unbalanced magnetic pull caused by asymmetric slot-pole combinations in rotary machines. Firstly, the winding factor and harmonic distribution of asymmetric slot-pole combinations are revealed from the perspective of armature MMF. Furthermore, a higher modulation ratio design is achieved under the same electromagnetic load and its mechanism is analyzed. Then, to address the insufficient fault tolerance of conventional symmetric winding, a modular asymmetric winding machine is proposed and optimized. Consequently, the results show that the proposed machine exhibits superior characteristics in both thrust density and fault tolerance, and finally, experiments on a linear machine test bench validate the theoretical analysis.

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Mr. Hui Feng

Dr. Meimei Xu