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Open AccessArticle

A New Outer-Rotor Hybrid-Excited Flux-Switching Machine Employing the HTS Homopolar Topology

1
School of Mechanical Engineering, Korea University, Seoul 02841, Korea
2
Spin Engineering Physics Team, Korea Basic Science Institute, Daejeon 34133, Korea
3
Industry Convergence Technology Center, Korea Testing Laboratory, Ansan 426-910, Korea
*
Author to whom correspondence should be addressed.
Energies 2019, 12(14), 2654; https://doi.org/10.3390/en12142654
Received: 13 May 2019 / Revised: 7 July 2019 / Accepted: 8 July 2019 / Published: 10 July 2019
(This article belongs to the Special Issue Design, Control, and Optimization of Flux Switching Machine)
Currently, studies of flux switching machines are actively underway owing to several advantages of these machines, including their sturdy rotor structure and high output capability. This paper deals with an outer-rotor hybrid-excited flux-switching machine (FSM). The proposed machine embraces a homopolar structure and utilizes permanent magnets (PMs) for field excitation and a high-temperature superconducting (HTS) coil for flux regulation. The stator houses the HTS field coil, PMs, and armature windings. The outer rotor consists solely of an iron core. Thus, the machines are cost effective and can serve as a solution to the design and fabrication complexities of field current supplying and cooling systems. In this paper, the machine performance outcomes are analyzed using the 3D finite element method (FEM), and the validity of the proposed machine is verified. View Full-Text
Keywords: flux regulation; flux switching machine; finite element method; high-temperature superconducting coil; hybrid excitation; outer rotor flux regulation; flux switching machine; finite element method; high-temperature superconducting coil; hybrid excitation; outer rotor
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Kim, J.M.; Jang, J.Y.; Chung, J.; Hwang, Y.J. A New Outer-Rotor Hybrid-Excited Flux-Switching Machine Employing the HTS Homopolar Topology. Energies 2019, 12, 2654.

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