Feedback limitations in nonlinear systems: from Bode integrals to cheap control
- 23 November 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 3, 2067-2072 vol.3
- https://doi.org/10.1109/cdc.1997.657071
Abstract
This paper links the Bode integral characterization of performance limitations in linear control systems with the limiting cost of a particular linear cheap control. This link allows us to establish analogous feedback limitations in nonlinear systems. We show how unstable zero dynamics impose unavoidable obstructions to the closed-loop performance.Keywords
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