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http://dx.doi.org/10.6113/JPE.2019.19.3.744

Finite Element Analysis and Dynamics Simulation of Mechanical Flux-Varying PM Machines with Auto-Rotary PMs  

Huang, Chaozhi (Department of Electrical Engineering and Automation, Jiangxi University of Science and Technology)
Zhang, Zhixuan (Department of Electrical Engineering and Automation, Jiangxi University of Science and Technology)
Liu, Xiping (Department of Electrical Engineering and Automation, Jiangxi University of Science and Technology)
Xiao, Juanjuan (Department of Electrical Engineering and Automation, Jiangxi University of Science and Technology)
Xu, Hui (Department of Electrical Engineering and Automation, Jiangxi University of Science and Technology)
Publication Information
Journal of Power Electronics / v.19, no.3, 2019 , pp. 744-750 More about this Journal
Abstract
A new type of auto-rotary PM mechanical flux-varying PM machine (ARPMMFVPMM) is proposed in this paper, which can overcome the problem where the air-gap magnetic field of a PM machine is difficult to freely adjust. The topology structures of the machine and the mechanical flux-adjusting device are given. In addition, the operation principle of flux-adjusting is analyzed in detail. Furthermore, the deformation of a spring with the speed variation is obtained by virtual prototype technology. Electromagnetic characteristics including the flux distribution, air gap flux density, flux linkage, electromagnetic-magnetic-force (EMF), and flux weakening ability are computed by 2D finite element method (FEM). Results show that the machine has some advantages such as the good field control ability.
Keywords
Finite element method; Mechanical flux-adjusting device; PM machine; Virtual prototype technology;
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