Journal
INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL
Volume 31, Issue 11, Pages 5261-5280Publisher
WILEY
DOI: 10.1002/rnc.5537
Keywords
linear matrix inequality; observer‐ based control design; periodic event‐ triggered control; stability
Funding
- National Science Foundation [ECCS-1931744]
- Office of Naval Research [N00014-17-1-2623]
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This article investigates the global stabilization of nonlinear systems under PETC mechanisms, providing sufficient conditions for input-to-state stability. These conditions ensure that the Lyapunov function of continuous dynamics is also valid for the overall system. Linear matrix inequalities are provided for the PETC design of incrementally quadratic nonlinear systems, with simulation examples illustrating the effectiveness of the proposed method.
Periodic event-triggered control (PETC) evaluates triggering conditions only at periodic sampling times, based on which it is decided whether the controller needs to be updated. This article investigates the global stabilization of nonlinear systems that are affected by external disturbances under PETC mechanisms. Sufficient conditions are provided to ensure the resulting closed-loop system is input-to-state stable (ISS) for the state feedback and the observer-based output feedback configurations separately. The sampling period and the triggering functions are chosen such that the ISS-Lyapunov function of continuous dynamics is also the ISS-Lyapunov function of the overall system. Based on that, sufficient conditions in the form of linear matrix inequalities are provided for the PETC design of incrementally quadratic nonlinear systems. Two simulation examples are provided to illustrate the effectiveness of the proposed method.
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