The forms of compensator in Network control system

In Network control system, the random Network time-delay exists in the forward path and feedback path, which will affect the stability of control system. To eliminate the influence of time-delay, the compensator is installed in Network control system. But the form of compensator in Network control system is alterable, different form for compensator will affect the characteristic of control system in deeply. In the paper, we study the different form for compensators how to affect the characteristic of Network control system, and design an appropriate form of compensator. It also can be proved by theory and experiment that the compensator can avoid the problems of model error and needn´t to prediction of the Network time-delay. The compensator can also be used for Network control system of UDP or TCP transport protocols.