Disturbance Rejection Based Predictive Control of Discrete-Time Networked Control Systems

This paper investigates the control problem of networked control systems (NCSs) with time delays and mismatched disturbances in the discrete-time domain. A novel composite controller which is composed of networked predictive unit and disturbance rejection unit, is proposed for the considered NCSs. To be specific, an observer-based networked predictive unit is responsible for an active compensation of time delays, while a disturbance rejection unit is constructed to deal with the mismatched disturbances effectively. Finally, the effectiveness of the proposed control method is demonstrated by a numerical example.