Design and Optimization of a Novel Wound Field Synchronous Machine for Torque Performance Enhancement
- Title
- Design and Optimization of a Novel Wound Field Synchronous Machine for Torque Performance Enhancement
- Author
- 권병일
- Keywords
- wound field synchronous machine; PM-assisted; finite-element analysis; segment configuration; genetic algorithm; torque performance
- Issue Date
- 2018-08
- Publisher
- MDPI AG
- Citation
- ENERGIES, v. 11, No. 8, Article no. 2111
- Abstract
- This paper presents the design and optimization of a novel wound field synchronous
machine topology, in which permanent magnets (PMs) are introduced into the rotor slot opening
with segment configuration for high quality output torque performance. The rotor shape of the
proposed PM-assisted wound field synchronous machine with segment configuration is optimized for
maximizing the average output torque and decreasing torque ripple under constant PM volume and
motor size. The segment configuration can be benefit to improve the reluctance torque. In addition,
it is further clarified that the assisted-PM can help to increase the field torque by enlarging the
magnetizing synchronous reactance (Xf), as well as increasing airgap flux density. An optimal method
combining Kriging method and genetic algorithm is applied for rotor shape optimization of proposed
PM-assisted wound field synchronous machine (PMa-WFSM). Then, the 2-D finite-element analysis
results, with the aid of JMAG-Designer, are used to confirm the validity. It is determined that the
average output torque is improved by 31.66%, and keeps lower torque ripple without decreasing
efficiency, increasing PM volume and motor size compared with those of the basic model. Finally,
irreversible demagnetization and mises stress analysis verifies the reliability of the novel topology.
- URI
- https://www.mdpi.com/1996-1073/11/8/2111/htmhttps://repository.hanyang.ac.kr/handle/20.500.11754/81290
- ISSN
- 1996-1073
- DOI
- 10.3390/en11082111
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ELECTRICAL ENGINEERING(전자공학부) > Articles
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