期刊
AUTOMATICA
卷 50, 期 5, 页码 1507-1513出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.automatica.2014.03.015
关键词
Nonlinear systems; Continuous-time systems; Event-triggered; Model predictive control (MPC); Disturbances; Robust control
资金
- Natural Sciences and Engineering Research Council of Canada
- Canada Foundation of Innovation
- Zhejiang Provincial International Science and Technology Cooperation Program of China [2012C24019]
The event-triggered control is of compelling features in efficiently exploiting system resources, and thus has found many applications in sensor networks, networked control systems, multi-agent systems and so on. In this paper, we study the event-triggered model predictive control (MPC) problem for continuoustime nonlinear systems subject to bounded disturbances. An event-triggered mechanism is first designed by measuring the error between the system state and its optimal prediction; the event-triggered MPC algorithm that is built upon the triggering mechanism and the dual-mode approach is then designed. The rigorous analysis of the feasibility and stability is conducted, and the sufficient conditions for ensuring the feasibility and stability are developed. We show that the feasibility of the event-triggered MPC algorithm can be guaranteed if, the prediction horizon is designed properly and the disturbances are small enough. Furthermore, it is shown that the stability is related to the prediction horizon, the disturbance bound and the triggering level, and that the state trajectory converges to a robust invariant set under the proposed conditions. Finally, a case study is provided to verify the theoretical results. (c) 2014 Elsevier Ltd. All rights reserved.
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