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

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

doi:10.1109/ACCESS.2021.3076260

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 journal › Article › peer-review

3 Citations (Scopus)

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 language	English
Article number	9417213
Pages (from-to)	64574-64586
Number of pages	13
Journal	IEEE Access
Volume	9
DOIs	https://doi.org/10.1109/ACCESS.2021.3076260
Publication status	Published - 2021

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)
Electrical and Electronic Engineering

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10.1109/ACCESS.2021.3076260

Cite this

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title = "Analysis and Design of Novel Structured High Torque Density Magnetic-Geared Permanent Magnet Machine",

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.",

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",

author = "Soheil Yousefnejad and Hossein Heydari and Kan Akatsu and Ro, {Jong Suk}",

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AU - Yousefnejad, Soheil

AU - Heydari, Hossein

AU - Akatsu, Kan

AU - Ro, Jong Suk

PY - 2021

Y1 - 2021

N2 - 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.

AB - 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.

KW - Bi-directional flux modulating

KW - Halbach permanent magnet arrays

KW - MGPM machine

KW - bread-loaf shaped permanent magnet

KW - dual-layer permanent magnet excitations

KW - electrical continuously variable transmission (E-CVT)

KW - torque density

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

Abstract

Keywords

ASJC Scopus subject areas

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