Synchronous reluctance type bearingless motors with multi-flux barriers

M. Takemoto, K. Yoshida, N. Itasaka, Y. Tanaka, A. Chiba, T. Fukao

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

19 Citations (Scopus)

Abstract

Bearingless motors (BeIMs) are characterized by integration of electrical motors and magnetic bearings. Therefore, rotor shaft suspension can be realized without mechanical contacts or lubrication. In addition to advantages of conventional magnetic bearings, these motors are expected to have advantageous features such as small size, low cost and high critical speed. Accordingly, the various types of BeIMs have been proposed and developed among researchers and industrial engineers. In these motors, the authors have studied the synchronous reluctance type BeIM (SynReI BeIM). In previous papers, the SynReI BeIM of the rotor structure with salient-pole form has already been proposed. However, no studies have ever tried to examine the optimal rotor structure producing torque and suspension force effectively. On the other hands, the rotor structure with multi-flux barriers has been reported as rotor structure with good torque characteristics in general synchronous reluctance motors. Thus, this paper discusses the optimal rotor structure of the SynReI BeIM, and it is shown with 2D-FEA that the rotor structure with multi-flux barriers is effective in producing torque and suspension force in the SynReI BeIM.

Original languageEnglish
Title of host publicationFourth Power Conversion Conference-NAGOYA, PCC-NAGOYA 2007 - Conference Proceedings
Pages1559-1564
Number of pages6
DOIs
Publication statusPublished - 2007
Externally publishedYes
Event4th Power Conversion Conference-NAGOYA, PCC-NAGOYA 2007 - Nagoya, Japan
Duration: Apr 2 2007Apr 5 2007

Publication series

NameFourth Power Conversion Conference-NAGOYA, PCC-NAGOYA 2007 - Conference Proceedings

Other

Other4th Power Conversion Conference-NAGOYA, PCC-NAGOYA 2007
Country/TerritoryJapan
CityNagoya
Period4/2/074/5/07

Keywords

  • Bearingless motors
  • Flux barriers
  • Magnetic bearings
  • Magnetic suspension
  • Synchronous reluctance motor

ASJC Scopus subject areas

  • Energy(all)
  • Electrical and Electronic Engineering

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