Robust passive control for a class of uncertain neutral systems based on sliding mode observer
Zhen Liu1, Lin Zhao2, Yonggui Kao3
1School of Mathematical Sciences, Ocean University of China, Qingdao 266100, China; Institute for Sustainable Manufacturing, University of Kentucky, Lexington 40506, USA.
Abstract:
The passivity-based sliding mode control (SMC) problem for a class of uncertain neutral systems with unmeasured states is investigated. Firstly, a particular non-fragile state observer is designed to generate the estimations of the system states, based upon which a novel integral-type sliding surface function is established for the control process. Secondly, a new sufficient condition for robust asymptotic stability and passivity of the resultant sliding mode dynamics (SMDs) is obtained in terms of linear matrix inequalities (LMIs). Thirdly, the finite-time reachability of the predesigned sliding surface is ensured by resorting to a novel adaptive SMC law. Finally, the validity and superiority of the scheme are justified via several examples.
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