Robust stability of feedback control systems with uncertain parameters and unmodeled dynamics |
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| Authors: | B. R. Barmish P. P. Khargonekar |
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| Affiliation: | (1) Department of Electrical and Computer Engineering, University of Wisconsin-Madison, 53706 Madison, Wisconsin, USA;(2) Department of Electrical Engineering, University of Minnesota, 55455 Minneapolis, Minnesota, USA;(3) Department of Electrical Engineering and Computer Science, University of Michigan, 48109 Ann Arbor, Michigan, USA |
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| Abstract: | ![]()
Recent results on a generalization of Kharitonov’s interval polynomial problem allow linearly dependent perturbations in the coefficients of a polynomial, and the main objective is to provide computationally tractable criteria for robust stability. In this paper robust-stability criteria are provided in an even more general setting—one which also accommodates unmodeled dynamics. In addition, the test given for robust stability totally avoids so-called “edge combinatorics,” greatly facilitating numerical computation. This research was supported by the National Science Foundation under Grants ECS-8612948 and ECS-8451519 and in part by AFOSR Grant 880020, Honeywell and GE. |
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| Keywords: | Robust stability Uncertain systems Unmodeled dynamics |
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