Universiti Teknologi Malaysia Institutional Repository

Chattering-free sliding mode control for an active magnetic bearing system

Husain, Abdul Rashid and Ahmad, Mohamad Noh and Mohd Yatim , Abdul Halim (2008) Chattering-free sliding mode control for an active magnetic bearing system. Proceedings Of World Academy Of Science, Engineering And Technology, 29 . 385 -391. ISSN 1307-6884

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Abstract

In this paper, a few chattering-free Sliding Mode Controllers (SMC) are proposed to stabilize an Active Magnetic Bearing (AMB) system with gyroscopic effect that is proportional to the rotor speed. The improved switching terms of the controller inherited from the saturation-type function and boundary layer control technique is shown to be able to achieve bounded and asymptotic stability, respectively, while the chattering effect in the input is attenuated. This is proven to be advantageous for AMB system since minimization of chattering results in optimized control effort. The performance of each controller is demonstrated via result of simulation in which the measurement of the total consumed energy and maximum control magnitude of each controller illustrates the effectiveness of the proposed controllers.

Item Type:Article
Uncontrolled Keywords:active magnetic bearing (AMB), sliding mode control (SMC), chattering-free SMC
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:12820
Deposited By: Liza Porijo
Deposited On:30 Jun 2011 10:11
Last Modified:30 Jun 2011 10:11

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