A new outer-rotor hybrid-excited flux-switching machine employing the HTS homopolar topology

Jong Myung Kim, Jae Young Jang, Jaewon Chung, Young Jin Hwang

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


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.

Original languageEnglish
Article number2654
Issue number14
Publication statusPublished - 2019

Bibliographical note

Funding Information:
Funding: This work was supported by the Korea Basic Science Institute under Grant D39611.

Publisher Copyright:
© 2019 by the authors.


  • Finite element method
  • Flux regulation
  • Flux switching machine
  • High-temperature superconducting coil
  • Hybrid excitation
  • Outer rotor

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Energy (miscellaneous)
  • Control and Optimization
  • Electrical and Electronic Engineering


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