The design of compensators for telecontrol system based on network

The several kinds of compensators for telecontrol system are summarized in this paper. The dynamic compensator could change telecontrol system from unstable state to stable state, but performance will be influenced by prediction error of the network time delay and model error of object. The variable structure compensator only can get rid of the prediction of the network time delay. The influence of model error is still existed, and the variable structure compensator cannot be used for telecontrol system of UDP transport protocol. The new type compensator avoided the problem of model error of object and prediction of the network time delay, and cannot be used for telecontrol system of UDP or TCP transport protocol.