Predictive Functional Control for No Self-regulating Process with Disturbance Observer and Its Simulation

In order to suppress the unmeasurable external disturbance,a novel predictive functional control(PFC) method with disturbance observer for no self-regulating process is presented.By introducing the equivalent compensation to the control,the process can suppress the disturbance absolutely.The boiler liquid level control for feeding water is the typical integral process.The simulation result based on the process shows that the method has better performance in disturbance suppressing,and has good dynamic and static characteristic.