Experimental studies of variable leakage flux type IPMSM

Hiroki Hijikata, Kan Akatsu, Takashi Kato

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


This study describes a Variable Leakage Flux type Interior Permanent Magnet synchronous motor (VLF-IPM) for an automobile traction motor. The proposed VLF-IPM can control the leakage flux in the rotor core depending on the armature reaction. As the motor can suppress d-axis current to reduce the back-EMF, the motor improves not only the motor efficiency but also the inverter efficiency in the high speed area. It is experimentally confirmed that the VLF-IPM can achieve the high efficiency driving in the wide speed range.

Original languageEnglish
Pages (from-to)737-743
Number of pages7
JournalIEEJ Transactions on Industry Applications
Issue number9
Publication statusPublished - 2017 Jan 1


  • Traction motor
  • Variable leakage flux
  • Variable parameter

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering


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