Design, Analysis and Control of a Semi-active Magnetic Bearing System for Rotating Machine Applications

T.-J. Yeh

Abstract

In this paper, a semi-active magnetic bearing system which incorporates both the active and passive magnetic bearings is proposed for rotating machine applications. Particularly, the design, analysis, and control issues of the semi-active system are investigated by using an axial fan as the platform. In the proposed system, while the rotor is levitated axially by the active bearing, its radial and tilting stabilities are guaranteed by the passive bearings. By carefully designing the radial and tilting stiffnesses of the passive bearings and the controller of the active bearing, the system can be successfully operated to the rated speed of 4000rpm. Because the semi-active magnetic system is frictionless and consumes insignificant power in levitation, its total power consumption is 14.7% less than the conventional fan in which mechanical ball bearings are used.

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Paper Citation


in Harvard Style

Yeh T. (2015). Design, Analysis and Control of a Semi-active Magnetic Bearing System for Rotating Machine Applications . In Proceedings of the 12th International Conference on Informatics in Control, Automation and Robotics - Volume 1: ICINCO, ISBN 978-989-758-122-9, pages 503-510. DOI: 10.5220/0005528205030510


in Bibtex Style

@conference{icinco15,
author={T.-J. Yeh},
title={Design, Analysis and Control of a Semi-active Magnetic Bearing System for Rotating Machine Applications},
booktitle={Proceedings of the 12th International Conference on Informatics in Control, Automation and Robotics - Volume 1: ICINCO,},
year={2015},
pages={503-510},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005528205030510},
isbn={978-989-758-122-9},
}


in EndNote Style

TY - CONF
JO - Proceedings of the 12th International Conference on Informatics in Control, Automation and Robotics - Volume 1: ICINCO,
TI - Design, Analysis and Control of a Semi-active Magnetic Bearing System for Rotating Machine Applications
SN - 978-989-758-122-9
AU - Yeh T.
PY - 2015
SP - 503
EP - 510
DO - 10.5220/0005528205030510