A Robust Controller for Second-Order Systems Using Acceleration Measurements

[+] Author and Article Information
C.-H. Chuang, Oliver Courouge

Georgia Institute of Technology, Atlanta, GA 30332

Jer-Nan Juang

Spacecraft Dynamics Branch, NASA Langley Research Center, Hampton, VA 23665

J. Dyn. Sys., Meas., Control 119(2), 350-355 (Jun 01, 1997) (6 pages) doi:10.1115/1.2801264 History: Received June 28, 1993; Online December 03, 2007


This paper presents a robust control design using strictly positive realness for second-order dynamic systems. A robust strictly positive real controller stabilizes second-order systems with only acceleration measurements. An important property of this design is that the stabilization is independent of the system plant parameters. The control design connects a virtual system to a given plant such that any strictly positive real controller can be used to achieve robust stability. A spring-mass system is used as an example to demonstrate the robust stability and robust performance of this design.

Copyright © 1997 by The American Society of Mechanical Engineers
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