Event-triggered predictive control for networked control systems with network-induced delays and packet dropouts

This paper presents an event-triggered predictive control approach to stabilize a networked control system subject to network-induced delays and packet dropouts, for which the states are not measurable. An observer-based event generator is first designed according to the deviation between the state estimation at the current time and the one at the last trigger time. A predictive control scheme with a selector is then proposed to compensate the effect of network-induced delays and packet dropouts. Sufficient conditions for stabilization of the networked control system are derived by solving linear matrix inequalities and the corresponding gains of the controller and the observer are obtained. It is shown that the event-triggered implementation is able to realize reduction in communication and save bandwidth resources of feedback channel networks. A simulation example of an inverted pendulum model illustrates the efficacy of the proposed scheme.