Stability of fuzzy PID controllers
K.C. Sio, C.K. Lee · IEEE Transactions on Systems Man and Cybernetics - Part A Systems and Humans · 1998
In this paper, the stability of fuzzy PID controllers is studied. Using the passivity theorem, the stability region of the effective PID parameters can be derived and hence some sufficient conditions for a stable fuzzy controller can be obtained. With these conditions satisfied, a stable set of fuzzy rules can be designed easily.