Suspension characteristics of a consequent-pole type bearingless PM motor with wide magnetic gaps

Miya Amada, Norimasa Tanabe, Junichi Asama, Akira Chiba, Satoru Iwasaki, Masatsugu Takemoto, Tadashi Fukao, M. Azizur Rahman

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

9 Citations (Scopus)

Abstract

A new non-contact drive system has been developed employing a consequent-pole type bearingless permanent magnet (PM) motor. This bearingless motor has a much wider gap with respect to its rotor radius. Wide magnetic gaps can cause a decrease in radial magnetic suspension force of the bearingless motor because of an increase in magnetic reluctance. In this paper, the magnetic suspension forces of the fabricated wide gap bearingless drive system are evaluated, when the rotor is magnetically levitated. Experimental results are also compared to the calculated ones using the finite element method. It is demonstrated that the developed consequent-pole type bearingless PM motor with wide magnetic gaps possesses sufficient magnetic suspension force for non-contact operation.

Original languageEnglish
Title of host publicationIEEE Power and Energy Society 2008 General Meeting
Subtitle of host publicationConversion and Delivery of Electrical Energy in the 21st Century, PES
DOIs
Publication statusPublished - 2008
Externally publishedYes
EventIEEE Power and Energy Society 2008 General Meeting: Conversion and Delivery of Electrical Energy in the 21st Century, PES - Pittsburgh, PA, United States
Duration: Jul 20 2008Jul 24 2008

Publication series

NameIEEE Power and Energy Society 2008 General Meeting: Conversion and Delivery of Electrical Energy in the 21st Century, PES

Conference

ConferenceIEEE Power and Energy Society 2008 General Meeting: Conversion and Delivery of Electrical Energy in the 21st Century, PES
Country/TerritoryUnited States
CityPittsburgh, PA
Period7/20/087/24/08

Keywords

  • Bearingless motor
  • Consequent-pole
  • Magnetic bearing
  • PM motor
  • Wide gap

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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