Actuator amplitude saturation control for systems with exogenous disturbances

Author

Kapila, Vikram ; Haddad, Wassim M.

Author_Institution

Dept. of Mech., Aerosp. & Manuf. Eng., Polytech. Univ., Brooklyn, NY, USA

Volume

3

fYear

1998

fDate

21-26 Jun 1998

Firstpage

1468

Abstract

We develop fixed-order (i.e., full- and reduced-order) controllers for systems with actuator amplitude constraints and exogenous bounded energy L₂ disturbances. The actuator amplitude saturation and disturbance rejection constraints are embedded within an optimization problem by constructing a Riccati equation whose solution guarantees closed-loop global asymptotic stability in the face of sector bounded input nonlinearities and non-expansivity (gain boundedness) of the input-output system energy. Application of the proposed framework is demonstrated via a numerical example

Keywords

Riccati equations; absolute stability; actuators; asymptotic stability; closed loop systems; optimisation; robust control; Riccati equation; absolute stability; actuator; amplitude saturation control; asymptotic stability; closed-loop system; disturbance rejection; exogenous disturbances; fixed-order controllers; input nonlinearities; input-output system energy; optimization; Actuators; Aerospace engineering; Control systems; Feedback; Nonlinear control systems; Nonlinear dynamical systems; Riccati equations; Stability; Symmetric matrices; Windup;

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.1998.707069

Filename

707069