A study on improvement in permanent magnet synchronous motor with high permeability magnet

Masataka Miyamasu, Yudai Nakamura, Kan Akatsu, Masahiro Masuzawa

Research output: Contribution to journalArticle

3 Citations (Scopus)


This paper describes permanent magnet synchronous motors by having the characteristics of a bonded magnet. In general, most PMSMs use a Nd-Fe-B sintered magnet. Because the Nd-Fe-B sintered magnet has a high magnetic energy, it is possible to obtain high torque and high output power. On the other hand, the magnetic energy of the bonded magnet is lower than that of the Nd-Fe-B sintered magnet. However, this magnet has a higher permeability than the Nd-Fe-B sintered magnet and the eddy current is negligible. It is found that flux weakening control is useful because of the high permeability. This paper presents experimental results that verify the usability of the bonded magnet machines.

Original languageEnglish
Pages (from-to)943-951
Number of pages9
JournalIEEJ Transactions on Industry Applications
Issue number9
Publication statusPublished - 2013 Oct 7



  • Bonded magnet
  • Flux weakening control
  • Permanent-magnet synchronous motor

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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