A Novel Dynamic Surface Control Based on State Observer

The traditional surface control method is developed in this paper which is based on the state observer on line and this method is applied in saturated water-steam temperature system. Certain first-order low-pass filters are introduced into the designing process to avoid the occurrence of high-order derivatives of elements in the system which makes it easy to implement in practical applications. The stabilization of this control method is verified. Simulation results show that the dynamic surface control method still ensures an accurate result, even if the loads change in a great and parameters of the controlled plant change significantly.