325 Suppression and Reduction of Harmonic Disturbance Forces for Precision Magnetic Bearings

T. Shinshi; X. Zhang; A. Shimokohbe

doi:10.1299/jsmelem.2003.551

Proceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21

Online ISSN : 2424-3086
ISSN-L : 2424-3086

2003

DOI https://doi.org/10.1299/jsmelem.2003.551

Conference information

325 Suppression and Reduction of Harmonic Disturbance Forces for Precision Magnetic Bearings

T. Shinshi, X. Zhang, A. Shimokohbe

Author information

Keywords: Magnetic bearing, Rotational accuracy, Repetitive control, Induction motor, Unbalanced magnetic pull

CONFERENCE PROCEEDINGS FREE ACCESS

Pages 551-554

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Abstract

In this paper we discuss a method of realizing high precision radial magnetic bearings that are capable of high-speed operation by the suppression and reduction of the harmonic disturbance forces generated by the induction motor that is used to drive the magnetic bearing. Experimental data shows that a rotational accuracy of 31.8nm (3σ) can be achieved at 5,400rpm for an experimental radial magnetic bearing in which the spindle has a diameter of 80mm and a mass of 3.29kg.

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