Research Repository

Fuzzy Logic Control of a Magnetic Bearing System

Shi, Juan and Lee, Wee Sit and Vrettakis, Phillip (2008) Fuzzy Logic Control of a Magnetic Bearing System. In: Chinese Control and Decision Conference, 2008 : CCDC 2008, 2-4 July 2008, Yantai, Shandong, China. IEEE, Piscataway, New Jersey, pp. 5105-5110.

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Abstract

In this paper, a fuzzy logic controller (FLC) has been designed to stabilize a MBC500 magnetic bearing system. The FLC uses error and rate of change of error in the position of the rotor as inputs and produces an output voltage to control the current of the amplifier in the magnetic bearing system. A model of the MBC500 magnetic bearing system for the purpose of dynamic simulation is identified from the collected frequency response data. Since there are resonant modes that can threaten the stability of the closed-loop system, notch filters are usually employed to secure stability when conventional PD controllers are employed. However, the FLC can stabilize the magnetic bearing system without the use of any notch filters. The FLC has been coded in C and implemented in real time on a digital signal processor (DSP) card.

Item Type: Book Section
ISBN: 9781424417339 (print) 9781424417346 (online) 97814 24417346
Uncontrolled Keywords: ResPubID14630, PD control, fuzzy control, machine control, magnetic bearings, stability, PD controllers, fuzzy logic control, system Identification, control systems, error correction, filters, frequency response, magnetic levitation, magnetic resonance, magnetic separation, voltage control
Subjects: Faculty/School/Research Centre/Department > School of Engineering and Science
FOR Classification > 0906 Electrical and Electronic Engineering
SEO Classification > 970109 Expanding Knowledge in Engineering
Depositing User: VUIR
Date Deposited: 02 Jul 2014 01:44
Last Modified: 02 Jul 2014 23:03
URI: http://vuir.vu.edu.au/id/eprint/5771
DOI: 10.1109/CCDC.2008.4598302
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