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Design and Optimization of a Brushless Wound-Rotor Vernier Machine

Title
Design and Optimization of a Brushless Wound-Rotor Vernier Machine
Author
권병일
Keywords
wound-rotor vernier machines; brushless topologies; variable speed operation; finite element analysis; MOTOR
Issue Date
2018-02
Publisher
MDPI AG
Citation
ENERGIES, v. 11, No. 2, Article no. 317
Abstract
In this paper, a permanent magnet (PM)-less, brushless, wound-rotor vernier machine (BL-WRVM) is proposed for variable speed applications such as electric vehicles and washing machines. The wound rotor is excited through an already existing brushless topology, which requires a dual inverter configuration to generate an additional subharmonic component in the stator magnetomotive force (MMF). Different from permanent magnet vernier machines (PMVMs), the proposed BL-WRVM provides easy regulation of the rotor flux for variable speed operation. A 24-slot, 4-pole stator, and 44-pole outer rotor were designed, and 2D finite element analysis (FEA) was carried out to determine the performance of the proposed machine. To improve the performance of the proposed machine, optimization of the rotor and stator winding turns was done. The optimized model was further analyzed for wide-speed operation, and its performance was then compared with that of an equivalent permanent magnet vernier machine (PMVM). The proposed machine has the advantage of low cost due to its PM-less structure and is suitable for variable speed applications.
URI
https://www.mdpi.com/1996-1073/11/2/317/htmhttps://repository.hanyang.ac.kr/handle/20.500.11754/80923
ISSN
1996-1073
DOI
10.3390/en11020317
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ELECTRICAL ENGINEERING(전자공학부) > Articles
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