Networked Control Systems: A Polynomial Receding Horizon Approach | IEEE Journals & Magazine | IEEE Xplore

Networked Control Systems: A Polynomial Receding Horizon Approach


Abstract:

A receding horizon control strategy for nonlinear networked control systems described by polynomial models subject to input, state, and communication constraints is prese...Show More

Abstract:

A receding horizon control strategy for nonlinear networked control systems described by polynomial models subject to input, state, and communication constraints is presented. By resorting to a set-theoretic framework, sequences of precomputed inner approximations of the one-step controllable sets are online exploited to compute the commands to be applied to the plant in a receding horizon fashion. The key aim is to present sum-of-squares conditions under which the one-step controllable sets for nonlinear polynomial systems subject to time-delay phenomena on the transmitted signals can be offline computed. Specifically, the communication channel effects are taken into account by considering independent-of-delay and delay-dependent stability concepts that are used to initialize the one-step controllable sequences. Feasibility, asymptotic closed-loop stability, and constraints fulfilment regardless of any bounded time delay occurrences are formally proved. Finally, experimental results on a laboratory two-tank testbed show the effectiveness of the proposed approach.
Published in: IEEE Transactions on Control of Network Systems ( Volume: 1, Issue: 4, December 2014)
Page(s): 318 - 327
Date of Publication: 12 September 2014

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