A model predictive control framework for constrained uncertain positive systems

Junfeng Zhang, Xianglei Jia, Ridong Zhang and Yan Zuo

International Journal of Systems Science, 2018, vol. 49, issue 4, 884-896

Abstract: In this paper, a new model predictive control framework is proposed for positive systems subject to input/state constraints and interval/polytopic uncertainty. Instead of traditional quadratic performance index, simple linear performance index, linear Lyapunov function, cone invariant set with linear form and linear computation tool are first adopted. Then, a control law that can handle the constraints and robustly stabilise the systems is proposed. The advantages of the new framework lie in the following facts: (1) an equivalent linear problem is formulated that can be easily solved than other problems including the quadratic ones, (2) simple linear index and linear tool can be used based on the essential property of positive systems to achieve the desired control performance and (3) a general model predictive control law without sign restriction is designed. Finally, an attempt of application on mitigating viral escape is provided to verify the effectiveness of the proposed approach.

Date: 2018
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DOI: 10.1080/00207721.2017.1419307

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