Improved ferrite magnet vernier machine for an in-wheel machine

Kazuhiro Sato, Ryota Hosoya, Shoji Shimomura

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

10 Citations (Scopus)

Abstract

Directly driven in-wheel machines are required to generate high output power at low speed. The authors previously proposed the use of a permanent magnet vernier machine, which is suitable for applications that require large torque. The remarkable feature of the previously proposed machine is the use of only ferrite magnets in a 'V' configuration. This machine satisfied the required output characteristics of the in-wheel machine for EV and demonstrated high efficiency in computer simulations based on FEA. However, the design of this machine was somewhat problematic. Therefore, the present paper discusses downsizing of the machine, providing a wider air gap, and the use of concentrated windings. We have achieved an effective design for downsizing while maintaining the output and the torque density. The volume of the newly designed machine is 53% smaller than that of the previous machine, and target performances of 40 kW and 400 Nm were obtained.

Original languageEnglish
Title of host publicationPECon 2012 - 2012 IEEE International Conference on Power and Energy
Pages414-419
Number of pages6
DOIs
Publication statusPublished - 2012 Dec 1
Event2012 IEEE International Conference on Power and Energy, PECon 2012 - Kota Kinabalu, Malaysia
Duration: 2012 Dec 22012 Dec 5

Publication series

NamePECon 2012 - 2012 IEEE International Conference on Power and Energy

Conference

Conference2012 IEEE International Conference on Power and Energy, PECon 2012
CountryMalaysia
CityKota Kinabalu
Period12/12/212/12/5

Keywords

  • Electric Vehicle
  • Ferrite Magnet
  • In-wheel
  • Outer-rotor
  • Vernier Machine

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology

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  • Cite this

    Sato, K., Hosoya, R., & Shimomura, S. (2012). Improved ferrite magnet vernier machine for an in-wheel machine. In PECon 2012 - 2012 IEEE International Conference on Power and Energy (pp. 414-419). [6450248] (PECon 2012 - 2012 IEEE International Conference on Power and Energy). https://doi.org/10.1109/PECon.2012.6450248