New repulsive type magnetic bearing - modeling and control

S. C. Mukhopadhyay*, T. Ohji, M. Iwahara, S. Yamada, F. Matsumura

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

4 Citations (Scopus)

Abstract

This paper reports on the development of a new repulsive type magnetic bearing system whose radial bearing section makes good utilization of the repulsive forces between stator and rotor permanent magnets resulting a simplified axial control scheme. The shape and configuration of permanent magnet is the most critical component for satisfactory operation of this type of magnetic bearing. In this paper, modeling of the permanent magnets has been done with the help of finite element analysis and the nature of the repulsive forces and stiffnesses are estimated along the three directions. Using the forces and expressing the rotor dynamics the issue of modeling a real physical repulsive type magnetic bearing system is discussed. The controller has been configured around digital signal processor. A prototype model has been designed and fabricated in our laboratory and experiments are carried out.

Original languageEnglish
Title of host publicationProceedings of the International Conference on Power Electronics and Drive Systems
EditorsSanjib Kumar Panda
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages12-18
Number of pages7
Volume1
ISBN (Print)0780337735, 9780780337732
Publication statusPublished - 1997
Externally publishedYes
EventProceedings of the 1997 2nd International Conference on Power Electronics and Drive Systems, PEDS. Part 2 (of 2) - Singapore, Singapore
Duration: 26 May 199729 May 1997

Other

OtherProceedings of the 1997 2nd International Conference on Power Electronics and Drive Systems, PEDS. Part 2 (of 2)
CitySingapore, Singapore
Period26/05/9729/05/97

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