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Author Hinrichsen, D. ♦ Pritchard, A.J.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1989
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations ♦ Other branches of engineering
Subject Keyword Robust stability ♦ State-space methods ♦ Time varying systems ♦ Robustness ♦ Stability analysis ♦ Robust control ♦ Riccati equations ♦ Differential equations ♦ Control theory ♦ Nonlinear control systems
Abstract The role that perturbations of the static linear output feedback type play in robustness analysis is discussed. It is noted that the class of these perturbations does not even contain all the time-invariant affine perturbations of the system matrix, and that it is questionable what the robustness measures r/sub R/ and r/sub C/, which are the real and complex stability radii, mean in the presence of time-varying, nonlinear or dynamic perturbations of the system equation. Since r/sub R/ and r/sub C/ are relative to a very restricted class of perturbations, it is suspected that they are misleading, i.e., overoptimistic indicesof robustness. The authors investigate this, and show that in the presence of uncertainty about the class of perturbations the real stability radius r/sub R/ may overestimate the robustness of the system.<<ETX>>
Description Author affiliation: Inst. fuer Dynamische Syst., Bremen Univ., West Germany (Hinrichsen, D.)
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 1989-12-13
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 192.53 kB
Page Count 2
Starting Page 52
Ending Page 53

Source: IEEE Xplore Digital Library