Parameter Adaptive Fuzzy PID Control for Once-though Boiler Power Unit
WANG Yin-song1,CEN Wei1,LIU Hong-da2 (1.College of Control Science and Engineering,North China Electric Power University, Baoding 071003,China;2.The Third Petroleum Factory of North China Oil Filed Subsidiary Company, Hejian 062450,China) Abstract:Based on a 765 MW combinational once-through boiler turbogenerator unit, this paper designs the typical parallel fuzzy control system for the output electric power and enthalpy, and researches the parameter’s adaptive tuning method of the fuzzy controller. First, it analyses the mathematical model of the once-through boiler turbogenerator unit. Then based on author’s previous work, given the parameters’ adaptive tuning method of the fuzzy controller based on author’s previous work. Finally, the simulation results show that parameter adaptive fuzzy PID controller can effectively reduce control system’s oscillating and regulating time, whose static and dynamic property is more than the basic parallel fuzzy PID control system. Key words:once-though boiler power unit;parallel fuzzy PID control; enthalpy; parameter adaptive tuning |