In Search of Weaker Conditions to Insure Robust Stability in Linear Feedback Systems

[+] Author and Article Information
Yossi Chait

Department of Mechanical Engineering, University of Massachusetts, Amherst, MA 01003

Nir Cohen

Editorial Engineering Dept., Technion, Israel Institute of Technology, Haifa, Israel 32000

C. R. MacCluer

Department of Mathematics, Michigan State University, East Lansing, MI 48824

J. Dyn. Sys., Meas., Control 113(1), 168-170 (Mar 01, 1991) (3 pages) doi:10.1115/1.2896344 History: Received April 12, 1989; Revised February 05, 1990; Online March 17, 2008


This paper is concerned with the well-known condition for robust stability of systems with plant uncertainty. It is shown that the usual sufficient condition for robust stability, given in terms of the maximum modulus of the plant approximation error, can be relaxed to a sector condition. This sector condition, related to the phase of the uncertain portion of the plant, can increase the range of the allowed variations in the parameters of the uncertain plant sufficient for robust stability.

Copyright © 1991 by The American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.





Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In