Nonlinear Adaptive Sliding Mode Control of a Rigid Rotor via Contactless Active Bearing

Jesna, Sherine V A and Netto, Winston and Ushakumari, S (2018) Nonlinear Adaptive Sliding Mode Control of a Rigid Rotor via Contactless Active Bearing. International Journal of Mechanical Engineering and Robotics Research, 8 (1). pp. 52-58. ISSN 2278-0149

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Abstract

Three-pole Active Magnetic Bearing AMB is a cost-effective method for implementing the principle of magnetic levitation in rotary devices as a bearing support. The nonlinear and unstable nature of three-pole AMB is a challenge for controller design. This study investigates the nonlinear characteristics of three-pole AMB and the design of a sliding mode controller to control AMB dynamics. The system is standardised into extended controllable canonical form, and the controller is designed. The inherent chattering of the sliding mode controller is also addressed with a solution of sliding gain adaptation. The simulation of the controller and the AMB analyses the performance of a system using the proposed controller.

Item Type: Article
Uncontrolled Keywords: three-pole AMB, mechatronics, output feedback linearisation, extended dynamics, sliding mode control, sliding gain adaptation, adaptive control
Subjects: Engineering > MIT Manipal > Instrumentation and Control
Engineering > MIT Manipal > Mechatronics
Depositing User: MIT Library
Date Deposited: 05 Jan 2019 06:23
Last Modified: 05 Jan 2019 06:23
URI: http://eprints.manipal.edu/id/eprint/152733

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