Fuzzy PID Control With Grey Prediction and Its Application in Temperature Control System

Incorporating the grey prediction, fuzzy control and the conventional PID control, a design method of the grey prediction fuzzy PID control algorithm is presented. This control algorithm can be divided into three steps: to build the fuzzy tuning rules by simulation and analysis and obtain the parameters of PID controller by reasoning, to determine the control effect through the PID control law directly, and then to put the grey prediction into online uses. The prediction results replace the measure of the controlled object. The simulation results show that the superheated steam temperature control system using this algorithm has better performances than that of fuzzy PID control system.