Abstract
This paper introduces a novel event-triggered scheme into networked control systems which is used to determine when to transmit the newly sampled state information to the controller. Considering the effect of the network transmission delay and probabilistic actuator fault with different failure rates, a new actuator fault model is proposed under this event-triggered scheme. Then, criteria for the exponential mean square stability (EMSS) and criteria for codesigning both the feedback and the trigger parameters are derived by using Lyapunov functional method. These criteria are obtained in the form of linear matrix inequalities. A simulation example is employed to show that our event-triggered scheme can lead to a larger release period than some existing ones.
Highlights
Nowadays, more and more attention has been paid to the study of stability analysis and control design of networked control systems (NCSs)
Considering the different failure rates of each sensor or actuator, the authors studied the reliable controller for networked control systems in [12, 13], reliable controllers were designed, and sufficient conditions for the exponentially mean square stability of NCS were obtained
This paper considers networked systems with probabilistic actuators faults
Summary
More and more attention has been paid to the study of stability analysis and control design of networked control systems (NCSs). The stability analysis and control design for NCS have been invested, and lots of outstanding results have been obtained [3, 4] In these works, most are based on the periodic triggered control method, which is called a timetrigged control. By using a linear matrix inequality technique and an adaptive method, they established a new delay-dependent reliable H∞ controller, which guaranteed the stability and adaptive H∞ performance of closed-loop systems in normal and faulty cases. Considering the different failure rates of each sensor or actuator, the authors studied the reliable controller for networked control systems in [12, 13], reliable controllers were designed, and sufficient conditions for the exponentially mean square stability of NCS were obtained.
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