Reliable decentralized stabilization of feedforward and feedback interconnected systems

Stabilization of Interconnected Systems with Decentralized State and/or Output Feedback

This paper investigates the problem of the stabilization of a system (A, Bd) consisting of two interconnected subsystems, with decentralized state or output feedback. Following the initial definition of the global system and of its two subsystems in the state-space, and based on the intercontrollability matrix D(s) of system (A, Bd) and on the kernel U(s) of D(s), an equivalent system {M(s), I2...

Decentralized dynamic output feedback for robust stabilization of a class of nonlinear interconnected systems

The objective of this paper is to propose an approach to robust stabilization of systems which are composed of linear subsystems coupled by nonlinear time-varying interconnections satisfying quadratic constraints. The proposed algorithms, which are formulated within the convex optimization framework, employ linear dynamic feedback structure involving local Luenberger-type observers. It is also ...

Robust stabilization of nonlinear interconnected systems by decentralized dynamic output feedback

A Decentralized Stabilization Scheme for Large-scale Interconnected Systems

This thesis considers the problem of decentralized control of large-scale systems by means of a decomposition and decentralization approach. Having decomposed the system into a number of interconnected subsystems a set of local decentralized controllers is constructed for individual subsystems. An important issue is to adapt methods with existing information structure constraints. Namely, somet...

Feedback stabilization for high order feedforward nonlinear time-delay systems

This paper investigates the problem of global strong stabilization by state feedback, for a family of high order feedforward nonlinear time-delay systems. The uncertain nonlinearities are assumed to satisfy a polynomial growth assumption with an input or delayed input dependent rate. With the help of the appropriate Lyapunov-Krasovskii functionals, and a rescaling transformation with a gain to ...