Quasi-internal model control approach for networked control systems with disturbances

This paper considers how to make full use of the known input feature information, to seek the effective control method for networked control systems with disturbances. Using priori knowledge of disturbances, we present a new quasi-internal model control approach. The controller design process is divided into two steps: quasi-internal model compensator design and stabilization controller design. The quasi-internal model compensator ensures control precision of the closed-loop system. Stabilization controller guarantees stability, robustness and other performance index of the closed-loop system. Moreover, the construction approach of quasi-internal model compensator is presented. Simulation examples indicate that the quasi-internal model control approach is effective with respect to damping the external step and sinusoidal disturbances.