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State feedback regulation of nonlinear systems using conditional integrators | IEEE Conference Publication | IEEE Xplore

State feedback regulation of nonlinear systems using conditional integrators


Abstract:

This paper studies the regulation of nonlinear systems using conditional integrators. Previous work introduced the tool of conditional integrators that provide integral a...Show More

Abstract:

This paper studies the regulation of nonlinear systems using conditional integrators. Previous work introduced the tool of conditional integrators that provide integral action inside a boundary layer while acting as stable systems outside, leading to improvement in transient response while achieving asymptotic regulation in the presence of unknown constant disturbances or parameter uncertainties. The approach, however, is restricted to a sliding mode control framework. This paper extends this tool to a fairly general class or state feedback control laws, with the stipulation that we know a Lyapunov function for the closed-loop system. Asymptotic regulation with improvement in transient response is done by using the Lyapunov redesign technique to implement the state feedback control as a saturated high-gain feedback and introducing a conditional integrator to provide integral action inside a boundary layer. Improvement in the transient response using conditional integrators is demonstrated with an experimental application to the Pendubot.
Date of Conference: 14-17 December 2004
Date Added to IEEE Xplore: 16 May 2005
Print ISBN:0-7803-8682-5
Print ISSN: 0191-2216
Conference Location: Nassau, Bahamas

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