Title :
Structural Information in Robustness Analysis
Author :
Lee, W.H. ; Gully, S.W. ; Eterno, J.S. ; Sandell, N.R., Jr.
Author_Institution :
ALPHATECH, Inc., 3 New England Executive Park, Burlington, Massachusetts 01803
Abstract :
Two topics on using structural information in the robustness analysis of control feedback systems are presented. First, we describe how to identify sensitive direction for perturbations to individual components (subsystems) of larger systems. This technique is then applied, to parameter variation analysis. Also we discuss the role of the control weighting matrix in the robustness analysis of the linear quadratic (LQ) desigjn, using a 2Ã2 example. In particular, it is shown that the structure of the control weighting matrix can be used to classify sensitivities of the control system to model uncertainties.
Keywords :
Control design; Control systems; Feedback; Information analysis; Matrix decomposition; Robust control; Robustness; Stability; Uncertainty; Weight control;
Conference_Titel :
American Control Conference, 1982
Conference_Location :
Arlington, VA, USA