Abstract
The decentralized feedback stabilization problem of a class of nonlinear interconnected discrete-time systems is considered. This class of systems has unknown-but-bounded state-delay and uncertain nonlinear perturbations satisfying quadratic constraints that are functions of the overall state and delayed state vectors. A decentralized output feedback scheme is proposed and analyzed such that the overall closed-loop system guarantees global delay-dependent stability condition, derived in terms of local subsystem variables. Incorporating feedback gain perturbations, new resilient decentralized feedback scheme is subsequently developed. The proposed approach is formulated within the framework of convex optimization over linear matrix inequalities. Simulation results illustrate the effectiveness of the proposed decentralized output-feedback controllers.
| Original language | English |
|---|---|
| Pages (from-to) | 529-545 |
| Number of pages | 17 |
| Journal | Optimal Control Applications and Methods |
| Volume | 31 |
| Issue number | 6 |
| DOIs | |
| State | Published - Nov 2010 |
Keywords
- LMIs
- decentralized feedback stabilization
- discrete-time systems
- nonlinear interconnected systems
- time-delay systems
ASJC Scopus subject areas
- Control and Systems Engineering
- Software
- Control and Optimization
- Applied Mathematics