Dividing Repulsion Permanent Magnets for Enhancing Suspension Force Characteristics in a 1-axis Active Control Type Magnetic Levitation Pump

Koki Terada, Masatsugu Takemoto, Ren Tsunata, Jun Imai

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

Abstract

Magnetic levitation pumps can feed liquid cleanly without mechanical contact by magnetically suspending the rotor shaft integrated with the impeller. However, surfaces of the rotor and the stator need to be protected by resin bulkheads, and then the magnetic gap length is larger than generally electrical machine. Therefore, it is difficult to generate large suspension force for 1-axis active control type magnetic levitation pumps that passively stabilize the rotor in the radial direction with repulsive force of permanent magnets (PMs). This paper proposes a new structure of the repulsion PM which can generate high suspension force even wide gap length. Five structures of the repulsion PM are investigated, and the structure that is optimized for a 1-axis active control type is analyzed with 3-dimentional finite element method (3D-FEM).

Original languageEnglish
Title of host publicationIECON 2022 - 48th Annual Conference of the IEEE Industrial Electronics Society
PublisherIEEE Computer Society
ISBN (Electronic)9781665480253
DOIs
Publication statusPublished - 2022
Event48th Annual Conference of the IEEE Industrial Electronics Society, IECON 2022 - Brussels, Belgium
Duration: Oct 17 2022Oct 20 2022

Publication series

NameIECON Proceedings (Industrial Electronics Conference)
Volume2022-October

Conference

Conference48th Annual Conference of the IEEE Industrial Electronics Society, IECON 2022
Country/TerritoryBelgium
CityBrussels
Period10/17/2210/20/22

Keywords

  • 1-axis active control type
  • magnetic bearings
  • magnetic levitation pumps
  • magnetic suspension
  • wide gap length

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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