Examination to make eddy current loss density uniform in divided Nd-Fe-B magnets of a high torque density motor with axial-gap structure

Ayato Nihonyanagi, Masatsugu Takemoto, Satoshi Ogasawara, Koji Inoue

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

4 Citations (Scopus)

Abstract

An axial-gap motor with Nd-Fe-B magnets was examined by three-dimensional finite element analysis (3D-FEA) in order to achieve high torque density over 66.8 Nm/L under the constraint of a maximum current density of 12 A/mm2, and it was confirmed that the examined motor could satisfy these conditions. In this examination, suppressing eddy current loss occurring in these magnets by equally dividing a magnet constituting one pole toward radial direction was attempted. However, 3D-FEA results revealed that the eddy current loss density generated in each magnet which was equally divided was not uniform and had a large bias. So, this paper provides examination to make the eddy current loss density uniform in divided magnets by adjusting split width appropriately.

Original languageEnglish
Title of host publication2015 IEEE 2nd International Future Energy Electronics Conference, IFEEC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479976577
DOIs
Publication statusPublished - Dec 18 2015
Externally publishedYes
Event2nd IEEE International Future Energy Electronics Conference, IFEEC 2015 - Taipei, Taiwan, Province of China
Duration: Nov 1 2015Nov 4 2015

Publication series

Name2015 IEEE 2nd International Future Energy Electronics Conference, IFEEC 2015

Conference

Conference2nd IEEE International Future Energy Electronics Conference, IFEEC 2015
CountryTaiwan, Province of China
CityTaipei
Period11/1/1511/4/15

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering

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