Robust model predictive control for perturbed nonlinear systems via an error differential-integral based event-triggered approach

Ning He, Jiawei Du, Zhongxian Xu and Fuan Cheng

International Journal of Systems Science, 2024, vol. 55, issue 5, 858-875

Abstract: This paper aims to establish a new event-triggered model predictive control (MPC) strategy for perturbed nonlinear systems working in a networked environment, which can effectively save the computation and communication resources while ensuring control performance. The core of the framework is a new event-triggered mechanism, which is built by combining the differential and integral (D-I) information of the error between the optimal state and the actual state in a pre-specified time horizon. Based on such a triggering mechanism, a D-I based event-triggered robust MPC algorithm is proposed to stabilise the system and reduce the computation/communication resource consumption. In addition, sufficient conditions to ensure the feasibility and stability of the proposed MPC algorithm and avoid Zeno behaviour are obtained through rigorous theoretical analysis. Finally, the proposed control framework is implemented in the nonlinear cart-damper-spring and autonomous underwater vehicle systems to verify its effectiveness.

Date: 2024
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DOI: 10.1080/00207721.2023.2300715

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