Hybrid Stabilization of Linear Systems with Reverse Polytopic Input Constraints

TitleHybrid Stabilization of Linear Systems with Reverse Polytopic Input Constraints
Publication TypeJournal Article
Year of Publication2017
AuthorsCasau P., Sanfelice R.G, Silvestre C.
JournalIEEE Transactions on Automatic Control
VolumePP
Issue99
Date Published02/02/2017
ISSN0018-9286
Other NumbersOnline ISSN: 1558-2523
Abstract

This paper addresses the problem of globally uniformly exponentially stabilizing a linear system to the origin by output feedback while avoiding a prescribed set of input values. We consider that the set of input values to avoid is given by the union of a finite number of closed polytopes that do not contain the origin and we refer to this restriction as a reverse polytopic input constraint. We show that the synthesis of the hybrid controller can be performed by solving a set of linear matrix inequalities for the full state feedback case, and by solving a set of bilinear matrix inequalities for the output feedback case. The resulting closed-loop hybrid system is shown to satisfy key conditions for well-posedness and robustness to small measurement noise. Furthermore, we apply the proposed hybrid controller to the stabilization of a single-input linear system subject to reverse polytopic constraints on the norm of the input. The behavior of the corresponding closed-loop hybrid system is validated by simulations.

URLhttp://ieeexplore.ieee.org/abstract/document/7845562/
DOI10.1109/TAC.2017.2665123