Analysis and Design of Novel Structured High Torque Density Magnetic-Geared Permanent Magnet Machine

Soheil Yousefnejad, Hossein Heydari, Kan Akatsu, Jong Suk Ro

Research output: Contribution to journalArticlepeer-review

Abstract

The main limitation of magnetic gears is their relatively low torque density. Therefore, a novel structured high torque density magnetic-geared permanent magnet (MGPM) machine, which combines the advantages of a conventional MGPM machine and magnetic gear to enhance the torque considerably and achieve low-speed high-torque operation, is proposed in this study. However, there are different structures for increasing torque of a machine. Therefore, in order to demonstrate the advantages of the proposed structure, it is compared with other structures, using the finite element method. Moreover, the proposed MGPM machine can transmit an additional 42.3% of torque density when compared with the conventional MGPM machine of the same size.

Original languageEnglish
Article number9417213
Pages (from-to)64574-64586
Number of pages13
JournalIEEE Access
Volume9
DOIs
Publication statusPublished - 2021
Externally publishedYes

Keywords

  • Bi-directional flux modulating
  • Halbach permanent magnet arrays
  • MGPM machine
  • bread-loaf shaped permanent magnet
  • dual-layer permanent magnet excitations
  • electrical continuously variable transmission (E-CVT)
  • torque density

ASJC Scopus subject areas

  • Computer Science(all)
  • Materials Science(all)
  • Engineering(all)

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