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Please use this identifier to cite or link to this item: http://hdl.handle.net/1860/1680

Title: Control of non-minimum-phase nonlinear systems through constrained input-output linearization
Authors: Panjapornpon, Chanin
Soroush, Masoud
Issue Date: Jun-2006
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Citation: Proceedings of the 2006 American Control Conference, pp. 4522-4527.
Abstract: This paper presents a novel control method that provides optimal output-regulation with guaranteed closedloop asymptotic stability within an assessable domain of attraction. The closed-loop stability is ensured by requiring state variables to satisfy a hard, second-order Lyapunov constraint. Whenever input-output linearization alone cannot ensure asymptotic closed-loop stability, the closed-loop system evolves while being at the hard constraint. Once the closed-loop system enters a state-space region in which input-output linearization can ensure asymptotic stability, the hard constraint becomes inactive. Consequently, the nonlinear control method is applicable to stable and unstable processes, whether non-minimum- or minimum-phase. The control method is implemented on a chemical reactor with multiple steady states, to show its application and performance.
URI: http://dx.doi.org/10.1109/ACC.2006.1657432
Appears in Collections:Faculty Research and Publications (CBE)

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