The simulation research of model predicting control (MPC) arithmetic of unit plant coordinated control system

This paper provides a new control strategy that by using the Smith predictor overcomes time-lag influence. A model predicting control arithmetic is designed which can improve the limit that Smith predictor requests on process model higher accuracy and time-varying parameter by setting up a mechanism mathematic model of the unit plant. The result of a simulation test indicates that the control problem of the system can be solved for a typical great inertia, time lag and time-varying parameter in main steam pressure.