NDLI: Sliding Mode Control with Linear Quadratic Hyperplane Design: An application to an Active Magnetic Bearing System

Content Provider	IEEE Xplore Digital Library
Author	Husain, A.R. Ahmad, M.N. Yatim, A.H.M.
Copyright Year	2007
Description	Author affiliation: Univ. Teknol. Malaysia, Johor (Husain, A.R.)
Abstract	This paper deals with modeling and control of a nonlinear horizontal active magnetic bearing (AMB) system via current control scheme. The gyroscopic effect and mass imbalance inherited in the system are proportional to the rotor speed in which these nonlinearities cause high system instability as the rotational speed increases. In order to synthesize a robust controller that can stabilize the system under a wide range of rotational speed, the dynamic AMB model is transformed into a deterministic model to form a class of uncertain system. Then, based on Sliding Mode Control (SMC) theory and Lyapunov method, a new robust controller that stabilizes the system is proposed wherein the Linear Quadratic Regulator (LQR) is used to design the sliding surface. Under this control, the reaching condition is guaranteed and the closed loop system is stable. The performance of the controller applied to the AMB model is demonstrated through simulation works under various rotational speeds and system conditions.
Starting Page	1
Ending Page	6
File Size	170496
Page Count	6
File Format	PDF
ISBN	9781424414697
DOI	10.1109/SCORED.2007.4451443
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-12-12
Publisher Place	Malaysia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Uncertain systems deterministic form Nonlinear control systems Lyapunov method Control systems Nonlinear dynamical systems Sliding mode control Robust control Current control Sliding Mode Control Control system synthesis Active Magnetic Bearing (AMB) Magnetic levitation
Content Type	Text
Resource Type	Article

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