Al Marsá, Tunisia
Al Marsá, Tunisia

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Abdelkrim A.,Laboratory of Advanced Systems | Jouili K.,Laboratory of Advanced Systems | Braiek N.B.,Laboratory of Advanced Systems
International Review of Automatic Control | Year: 2015

In this work, we explore the input-output feedback linearization in an attempt to suggest a switching rule that is liable to find out the appropriate diffeomorphism that can improve the transient behavior and let the switching system stable. Unlike the approach based on one diffeomorphism, our approach may guarantee the behavior of the controlled system trajectories as it rests on multi-diffeomorphisms. Finally, the study of a numerical example is presented in order to show the effectiveness of the proposed approach. © 2015 Praise Worthy Prize S.r.l. - All rights reserved.


Tlili A.S.,Laboratory of Advanced Systems
16th International Conference on Sciences and Techniques of Automatic Control and Computer Engineering, STA 2015 | Year: 2015

This article proposes elaborating an optimal stabilization of large scale interconnected processes, whereas the nonlinear interconnection functions between subsystems are assumed to be norm bounded. Sufficient conditions derived from the asymptotic stability analysis and the optimal performances study of the designed control strategy are formulated within an optimization problem. Such a problem is resolved by an innovative one-step LMI procedure to calculate altogether the decentralized control and observation gains of the overall system, to maximize the nonlinear terms' boundaries sustained by the process without going unstable, and also to compute the least higher limit of a prescribed rate of performance. The efficacy of the developed scheme is highlighted through simulations focusing upon the optimal stabilization of two strongly interconnected subsystems. © 2015 IEEE.

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