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TECHNICAL PAPERS

Robust Composite Control for Singularly Perturbed Systems With Time-Varying Uncertainties

[+] Author and Article Information
Y. H. Chen, J. S. Chen

The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332

J. Dyn. Sys., Meas., Control 117(4), 445-452 (Dec 01, 1995) (8 pages) doi:10.1115/1.2801099 History: Received February 10, 1993; Online December 03, 2007

Abstract

A two-time-scale linear system with uncertain time-varying parameter is to be stabilized. A class of robust composite controls is proposed. The control renders the system practically stable regardless of the true value of the parameter. The control scheme consists of linear and nonlinear parts. The linear part is designed via a two-level optimization setting. No matching condition is needed for the linear control. The nonlinear part is of continuous saturation type. Matching condition is needed for the nonlinear control. However, it can be achieved by choosing the boundary layer model appropriately.

Copyright © 1995 by The American Society of Mechanical Engineers
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