Investigation of enhancing efficiency and acceleration in a flat shape axial gap motor having high torque characteristic

Ren Tsunata, Masatsugu Takemoto, Satoshi Ogasawara, Asako Watanabe, Tomoyuki Ueno, Koji Yamada

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

1 Citation (Scopus)

Abstract

In recent years, flat shape motors are desired for many industrial applications such as robot arm, automobiles and so on. Thus, this paper discusses axial gap motors which have advantage for flat shape. In general, axial gap motors have high torque density with flat shape because of its wide air-gap area. Axial gap motors are therefore used for limited space like disk shape instead of radial gap motors which are the most general motor. However, compared with radial gap motors, the acceleration of axial gap motors is relatively lower because of the larger moment of inertia. In this paper, rotor structure to enhance the acceleration of axial gap motors is proposed and analyzed by 3D-FEA. In addition, material for permanent magnet of axial gap motors is properly selected in order to enhance efficiency at high speed and high torque area. Finally, prototypes of both axial and radial gap motor with flat shape are evaluated by some experiments. It is found that proposed axial gap motor can achieve the higher torque and efficiency compared with the radial gap motor with flat shape. Proposed axial gap motor additionally achieved the slightly larger acceleration compared with the radial gap motor.

Original languageEnglish
Title of host publicationProceedings - 2017 IEEE International Conference on Mechatronics, ICM 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages278-283
Number of pages6
ISBN (Electronic)9781509045389
DOIs
Publication statusPublished - May 6 2017
Externally publishedYes
Event2017 IEEE International Conference on Mechatronics, ICM 2017 - Gippsland, Australia
Duration: Feb 13 2017Feb 15 2017

Publication series

NameProceedings - 2017 IEEE International Conference on Mechatronics, ICM 2017

Conference

Conference2017 IEEE International Conference on Mechatronics, ICM 2017
CountryAustralia
CityGippsland
Period2/13/172/15/17

Keywords

  • angular acceleration
  • Axial gap motor
  • coreless rotor structure
  • Nd bonded PM
  • radial gap motor
  • soft mognetic composite

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Control and Optimization

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