Robustness of nonlinear control systems with respect to unmodeled dynamics
Date
1996Source
Proceedings of the IEEE Conference on Decision and ControlProceedings of the 1996 35th IEEE Conference on Decision and Control. Part 3 (of 4)
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1Google Scholar check
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In this paper, we examine the global stability properties of nonlinear controllers in the presence of high frequency unmodeled dynamics. We develop necessary and sufficient conditions for a general class of nonlinear control laws, under which global signal boundedness or asymptotic stability is guaranteed. We show that a wide class of nonlinear control laws does not satisfy these conditions and therefore does not guarantee global stability in the presence of high frequency unmodeled dynamics.
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