Journal
INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL
Volume 31, Issue 16, Pages 7569-7586Publisher
WILEY
DOI: 10.1002/rnc.5769
Keywords
dynamic output feedback control; event-triggered control; periodic systems; piecewise method
Funding
- National Key R&D Program of China [2019YFB1312001]
- National Natural Science Foundation of China [62033005, 62022030, 62003114]
- Natural Science Foundation of Heilongjiang Province [ZD2021F001]
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In this article, an event-triggered control with periodic time-varying parameters is designed to stabilize a class of periodic systems with exogenous disturbances in a network environment. The application of output feedback design new event-triggering mechanisms to reduce unnecessary data transmission. The method of approximating the continuous-time periodic system by linear subsystems based on a piecewise method helps reduce theoretical complexity. The proposed control effectively stabilizes the periodic piecewise system.
In this article, an event-triggered control with periodic time-varying parameters is designed to stabilize a class of periodic systems with exogenous disturbances in a network environment. The continuous-time periodic system is approximated by some linear subsystems with finite-number constant matrices based on a piecewise method. It can thus reduce the complexity of theoretical analysis. To tackle the reduction of unnecessary data transmission between the sensor (or controller) and the controller (or actuator), new event-triggering mechanisms are designed via output feedback. Special parameters are designed to eliminate Zeno behavior, and the minimum triggering interval is obtained according to the designed condition. Then, an event-triggered periodic piecewise system is modeled as an impulsive periodic piecewise system. The bounded stability, as well as the L infinity performance of the impulsive periodic piecewise system, are analyzed. Furthermore, the gains of the event-triggered controller are obtained by a method of variable substitution. Finally, the validity of the proposed control is demonstrated by an application example.
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