Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7108455 | Automatica | 2018 | 10 Pages |
Abstract
This paper investigates the periodic event-triggered robust output feedback control problem for a class of nonlinear uncertain systems subject to time-varying disturbance. By means of the feedback domination approach and disturbance compensation technique, a new framework of periodic event-triggered robust control strategy is developed in the form of output feedback, which encompasses a discrete-time event-triggering transmission scheme that is only intermittently monitored at sampling instants and a discrete-time output feedback controller consisting of a set of linear difference equations. The proposed robust method may reduce the communication resource utilization as compared to the non-event triggering schemes while maintaining a desirable closed-loop system performance even in the presence of a general class of time-varying disturbance and nonlinear uncertainties. The closed-loop system under the proposed control scheme is actually modeled as a hybrid system, and it is shown that the global practical stability of the closed-loop hybrid system is guaranteed by selecting a sufficiently large scaling gain and a sufficiently small sampling period. Finally, the experimental results on a DC-DC buck power converter are presented to illustrate the effectiveness of the proposed control approaches.
Related Topics
Physical Sciences and Engineering
Engineering
Control and Systems Engineering
Authors
Jun Yang, Jiankun Sun, Wei Xing Zheng, Shihua Li,