Robust non-fragile LQ controllers: the static state feedback case

Author

Famularo, Domenico ; Abdallah, Chaouki T. ; Jadbabale, A. ; Dorato, Peter ; Haddad, Wassim M.

Author_Institution

Calabria Univ., Italy

Volume

2

fYear

1998

fDate

21-26 Jun 1998

Firstpage

1109

Abstract

This paper describes the synthesis of non-fragile or resilient regulators for linear systems. The general framework for fragility is described using state-space methodologies, and the LQ/H₂ static state-feedback case is examined in detail. We discuss the multiplicative structured uncertainties case, and propose remedies of the fragility problem using a convex programming framework as a possible solution scheme. The benchmark problem is taken as an example to show how controller gain variations can affect the performance of the closed-loop system

Keywords

closed loop systems; control system synthesis; convex programming; linear quadratic control; linear systems; matrix algebra; robust control; state feedback; state-space methods; time-varying systems; uncertain systems; H₂ control; closed-loop system; convex programming; fragility; linear matrix inequality; linear quadratic control; linear systems; multiplicative structured uncertainty; resilient regulators; robust control; state-space; static state feedback; time varying systems; Aerospace engineering; Chaos; Computer aided software engineering; Control systems; Linear systems; Regulators; Robust control; Robustness; State feedback; Uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 1998. Proceedings of the 1998

Conference_Location

Philadelphia, PA

ISSN

0743-1619

Print_ISBN

0-7803-4530-4

Type

conf

DOI

10.1109/ACC.1998.703583

Filename

703583