Dynamic output feedback H-infinity control for networked control systems with quantisation and random communication delays
This article is concerned with the dynamic output feedback H-infinity control problem for networked control systems with quantisation and random communication delays, where the random communication delays from the sensor to the controller and from the controller to the actuator are considered simultaneously. A novel quantised random delay model is proposed, and by using this model, the relationship of the quantisations, delays and the system performance is studied. The quantiser considered here is dynamic and composed of an adjustable zoom parameter and a static quantiser. With the condition on the quantisation range and the error bound satisfied, a quantised H-infinity control strategy is derived such that the closed-loop system is exponentially mean-square stable and with a prescribed H-infinity performance bound. An example is presented to illustrate the effectiveness of the proposed method.
h-infinity control networked control systems quantisation random communication delays state feedback