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Asymptotic stabilization of an active magnetic bearing system using LMI-based sliding mode control

In this paper, stabilization of an Active Magnetic Bearing (AMB) system with varying rotor speed using Sliding Mode Control (SMC) technique is considered. The gyroscopic effect inherited in the system is proportional to rotor speed in which this nonlinearity effect causes high system instability as...

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Main Authors: Husain, A. R., Ahmad, Mohamad Noh, Yatim, Abdul Halim Mohd.
Format: Conference or Workshop Item
Published: 2008
Subjects:
QA75 Electronic computers. Computer science
TK Electrical engineering. Electronics Nuclear engineering
Online Access:http://eprints.utm.my/id/eprint/13919/
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spelling my.utm.139192020-06-15T03:46:21Z http://eprints.utm.my/id/eprint/13919/ Asymptotic stabilization of an active magnetic bearing system using LMI-based sliding mode control Husain, A. R. Ahmad, Mohamad Noh Yatim, Abdul Halim Mohd. QA75 Electronic computers. Computer science TK Electrical engineering. Electronics Nuclear engineering In this paper, stabilization of an Active Magnetic Bearing (AMB) system with varying rotor speed using Sliding Mode Control (SMC) technique is considered. The gyroscopic effect inherited in the system is proportional to rotor speed in which this nonlinearity effect causes high system instability as the rotor speed increases. Also, transformation of the AMB dynamic model into a new class of uncertain system shows that this gyroscopic effect lies in the mismatched part of the system matrix. Moreover, the current gain parameter is allowed to be varied in a known bound as an uncertainty in the input matrix. SMC design method is proposed in which the sufficient condition that guarantees the global exponential stability of the reduced-order system is represented in Linear Matrix Inequality (LMI). Then, a new chattering-free control law is established such that the system states are driven to reach the switching surface and stay on it thereafter. The performance of the controller applied to the AMB model is demonstrated through simulation works under various system conditions. 2008 Conference or Workshop Item PeerReviewed Husain, A. R. and Ahmad, Mohamad Noh and Yatim, Abdul Halim Mohd. (2008) Asymptotic stabilization of an active magnetic bearing system using LMI-based sliding mode control. In: Conference of the World-Academy-of-Science-Engineering-and-Technology, 06th - 08th Feb 2008, Cairo, EGYPT.
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic QA75 Electronic computers. Computer science
TK Electrical engineering. Electronics Nuclear engineering
spellingShingle QA75 Electronic computers. Computer science
TK Electrical engineering. Electronics Nuclear engineering
Husain, A. R.
Ahmad, Mohamad Noh
Yatim, Abdul Halim Mohd.
Asymptotic stabilization of an active magnetic bearing system using LMI-based sliding mode control
description In this paper, stabilization of an Active Magnetic Bearing (AMB) system with varying rotor speed using Sliding Mode Control (SMC) technique is considered. The gyroscopic effect inherited in the system is proportional to rotor speed in which this nonlinearity effect causes high system instability as the rotor speed increases. Also, transformation of the AMB dynamic model into a new class of uncertain system shows that this gyroscopic effect lies in the mismatched part of the system matrix. Moreover, the current gain parameter is allowed to be varied in a known bound as an uncertainty in the input matrix. SMC design method is proposed in which the sufficient condition that guarantees the global exponential stability of the reduced-order system is represented in Linear Matrix Inequality (LMI). Then, a new chattering-free control law is established such that the system states are driven to reach the switching surface and stay on it thereafter. The performance of the controller applied to the AMB model is demonstrated through simulation works under various system conditions.
format Conference or Workshop Item
author Husain, A. R.
Ahmad, Mohamad Noh
Yatim, Abdul Halim Mohd.
author_facet Husain, A. R.
Ahmad, Mohamad Noh
Yatim, Abdul Halim Mohd.
author_sort Husain, A. R.
title Asymptotic stabilization of an active magnetic bearing system using LMI-based sliding mode control
title_short Asymptotic stabilization of an active magnetic bearing system using LMI-based sliding mode control
title_full Asymptotic stabilization of an active magnetic bearing system using LMI-based sliding mode control
title_fullStr Asymptotic stabilization of an active magnetic bearing system using LMI-based sliding mode control
title_full_unstemmed Asymptotic stabilization of an active magnetic bearing system using LMI-based sliding mode control
title_sort asymptotic stabilization of an active magnetic bearing system using lmi-based sliding mode control
publishDate 2008
url http://eprints.utm.my/id/eprint/13919/
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score 13.211869

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