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A sub-optimal second order sliding mode controller for systems with saturating actuators

Ferrara, Antonella and Rubagotti, Matteo A sub-optimal second order sliding mode controller for systems with saturating actuators. In: Proceedings of the American Control Conference, 2008. IEEE, 4715 -4720. ISBN 978-1-4244-2078-0 (2008)

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Abstract

In this paper, the problem of the possible saturation of the continuous control variable in the sub-optimal second order sliding mode controller applied to relative degree one systems with saturating actuators is addressed. It is proved that during the sliding phase, if basic assumptions are made, the continuous control variable never saturates, while, during the reaching phase, the presence of saturating actuators can make the steering of the sliding variable to zero in finite time not always guaranteed. In the present paper, the original algorithm is modified in order to solve this problem: a new strategy is proposed, which proves to be able to steer the sliding variable to zero in a finite time in spite of the presence of saturating actuators.

Item Type: Book Section
Identification Number: 10.1109/ACC.2008.4587239
Additional Information: American Control Conference, Westin Seattle Hotel, Seattle, Washington, USA June 11-13, 2008
Uncontrolled Keywords: continuous control variable; saturating actuators; sliding variable steering; suboptimal second order sliding mode controller; actuators; variable structure systems;
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
T Technology > TJ Mechanical engineering and machinery
Research Area: Computer Science and Applications
Depositing User: Users 37 not found.
Date Deposited: 02 Mar 2012 15:42
Last Modified: 30 Sep 2013 12:25
URI: http://eprints.imtlucca.it/id/eprint/1209

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