Integrated feedforward and feedback control for fast maneuvers of flexible systems

Author

Lim, Sungyung

Author_Institution

Space Syst./Loral, Palo Alto, CA, USA

Volume

6

fYear

2002

fDate

2002

Firstpage

4341

Abstract

This paper presents a new integrated feedforward and feedback control (IFFC) technique to achieve fast maneuvers of flexible systems. The feedforward control uses the Pareto optimal solution of a convex multi-objective optimization problem to yield a time- and energy-optimal solution. The robust H₂/μ feedback controller is designed to account for parametric and unmodeled uncertainties due to structural flexibility. In contrast to the heuristically-combined feedforward and feedback control approaches, the IFFC approach designs these different control components in such a systematic way that it yields faster maneuvers of flexible systems with uncertainties. Included are examples to demonstrate the effectiveness of the new IFFC technique.

Keywords

Pareto distribution; feedforward; flexible structures; minimisation; robust control; state feedback; time optimal control; uncertain systems; Pareto optimal solution; convex multi-objective optimization problem; energy-optimal solution; fast maneuvers; feedforward control; flexible systems; integrated feedforward feedback control; parametric uncertainties; robust H₂/μ feedback controller; structural flexibility; time-optimal solution; Adaptive control; Control systems; Feedback control; Linear programming; Open loop systems; Optimal control; Pareto optimization; Robust control; Shape control; Uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 2002. Proceedings of the 2002

ISSN

0743-1619

Print_ISBN

0-7803-7298-0

Type

conf

DOI

10.1109/ACC.2002.1025329

Filename

1025329