According to the basic principles and application characteristics of predictive functional control(PFC),and based on analysis of its general algorithm,a predictive functional controller for the waste heat boiler feed water level control system is proposed.Instead of traditional drum water level three impulse cascade PID control,PID control is used in inner loop and PFC and PID cascade control are adopted in outer loop.The results of MATLAB simulation show that the new control strategy named PFC-PID can quic...