Study on adaptive fuzzy PID parameters optimization based on chaos

An optimization algorithm design based on chaotic variable was proposed for adaptive fuzzy PID controller. First, by using the property of chaos ergodicity, a PID controller based on chaos optimization was designed. On the condition of stability, the most excellent parameters could be found with the least performance index by both cursory and precision precise search. These parameters were utilized as the most excellent parameters of the adaptive fuzzy PID controller. Second, according to the adaptive fuzzy method, the control rules and its parameters were determined. By this way, the simulation results show that this control method can be confirmed and reach required production target.