Robust Control of Generalized Dynamic Systems Without the Matching Conditions

[+] Author and Article Information
Zhihua Qu

Department of Electrical Engineering, University of Central Florida, Orlando, FL 32816

John Dorsey

School of Electrical Engineering, Georgia Institute of Technology, Atlanta, GA 30332

J. Dyn. Sys., Meas., Control 113(4), 582-589 (Dec 01, 1991) (8 pages) doi:10.1115/1.2896461 History: Received January 09, 1990; Revised January 16, 1991; Online March 17, 2008


A general control law and a set of conditions are proposed to guarantee the stability of dynamic systems with bounded uncertainties. The results do not require the matching conditions on the uncertainties and subsume several existing results as special cases. Moreover, it is shown that there is at least one class of uncertain dynamic systems which can always be stabilized under the proposed control law no matter what the size and the structure of the input-unrelated uncertainties.

Copyright © 1991 by The American Society of Mechanical Engineers
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