Proposed and Verification of Torque Equation of IPM-type Magnetic-Geared

Koki Ito, Kenji Nakamura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A magnetic-geared motor (MGM) consists of a magnetic gear and a permanent magnet (PM) motor, which are shared one inner rotor. Hence, it has high torque density in comparison with conventional PM motors. A structure of interior permanent magnet (IPM) is superior as an inner rotor in terms of efficiency. However, in the IPM-type MGM, magnetic interaction occurs and the torque equation considering the interaction has not been studied. This paper deals with the torque equation of the IPM-type MGM. First, the torque equation considering the magnetic interaction is derived. Next, the parameters of the torque equation are determined by using a two-dimensional finite element method (2D-FEM). Finally, the validity of the torque equation is proved by comparing with 2D-FEM.

Original languageEnglish
Title of host publication23rd International Conference on Electrical Machines and Systems, ICEMS 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages898-901
Number of pages4
ISBN (Electronic)9784886864192
DOIs
Publication statusPublished - 2020 Nov 24
Event23rd International Conference on Electrical Machines and Systems, ICEMS 2020 - Hamamatsu, Japan
Duration: 2020 Nov 242020 Nov 27

Publication series

Name23rd International Conference on Electrical Machines and Systems, ICEMS 2020

Conference

Conference23rd International Conference on Electrical Machines and Systems, ICEMS 2020
CountryJapan
CityHamamatsu
Period20/11/2420/11/27

Keywords

  • Magnetic gear
  • Magnetic interaction
  • Magnetic-geared motor
  • Torque equation

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Safety, Risk, Reliability and Quality
  • Control and Optimization

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