NDLI: Enhanced stability regions for model predictive control of nonlinear process systems

Content Provider	IEEE Xplore Digital Library
Author	Mahmood, M. Mhaskar, P.
Copyright Year	2008
Description	Author affiliation: Dept. of Chem. Eng., McMaster Univ., Hamilton, ON (Mahmood, M.; Mhaskar, P.)
Abstract	This work considers the problem of predictive control of nonlinear process systems subject to input constraints. Lyapunov-based tools are used to develop control- law independent characterizations of the stability region and this characterization is exploited via the constraints handling capabilities of model predicative controllers to expand on the set of initial conditions for which closed-loop stability can be achieved. The utilization of this idea is first illustrated for the case of linear systems and a predictive controller is designed that achieves closed-loop stability for every initial condition in the null controllable region. For nonlinear process systems, constraints are formulated requiring the process to evolve within the region from where continued decay of the Lyapunov function value is achievable and incorporated in the predictive control design, thereby expanding on the set of initial conditions from where closed-loop stability can be achieved. The proposed method is illustrated using a chemical reactor example.
Starting Page	1133
Ending Page	1138
File Size	1043734
Page Count	6
File Format	PDF
ISBN	9781424420780
ISSN	07431619
DOI	10.1109/ACC.2008.4586645
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-06-11
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	American Automatic Control Council(AACC)
Subject Keyword	Stability Predictive models Predictive control Control systems Control design Linear systems Lyapunov method Eigenvalues and eigenfunctions Nonlinear control systems Chemical engineering feasibility region Input constraints model predictive control Lyapunov-based control stability region
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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