Robust Observer-Based Control of Large Flexible Structures

[+] Author and Article Information
Chun-Liang Lin

Chung Shan Institute of Science and Technology, Lungtan, Taoyuan, 325 Taiwan

Bor-Sen Chen

Department of Electrical Engineering, National Tsing Hua University, Hsinchu, 30043 Taiwan

J. Dyn. Sys., Meas., Control 116(4), 713-722 (Dec 01, 1994) (10 pages) doi:10.1115/1.2899270 History: Received October 25, 1998; Online March 17, 2008


This paper considers robust stabilization of the spillover phenomenon of large flexible structures. New frequency domain robustness measures for a large flexible structure system controlled by an observer-based compensator is derived via a state-space framework. In the present approach, control and observation spillover are viewed as parametric perturbations, and the total spillover (combination of control and observation spillover) is treated as the unmodeled dynamics. A robust observer-based output feedback control law, obtained by solving two algebraic Riccati equations, is provided. Finally, a simply supported beam example is included to illustrate the application.

Copyright © 1994 by The American Society of Mechanical Engineers
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