Study on the Robustness Based on PID Fuzzy Controller

Fuzzy control has lots of advantages compared with traditional PID control. Good performance can be obtained by fuzzy control without mathematic model of control object. Meanwhile, fuzzy controller is equipped with high stability and robustness. The characteristics of traditional PID control and fuzzy controls were integrated as fuzzy PID control, greatly enhancing performance of the controller. The work discussed the design of fuzzy parameter self-tuning PID controller. The performance of the controller was compared with traditional PID controller mainly from the robustness. Results indicated robustness of fuzzy PID controller is better after comparison.