Fuzzy adaptive pole placement control considering stability index
P. Ratiroch-Anant, Wanlop Surakampontorn, H. Hirata, Masatoshi Anabuki, Jongkol Ngamwiwit · 2002
This paper proposes a method for automatically adjusting the pole of a stable closed-loop system and presents a design strategy for a strongly stable adaptive system. When the system parameter fluctuates widely, a controller having unstable poles appears in an adaptive pole placement control system, even if the closed-loop system is selected to be a stable system. By examining the stability indices of the series compensator, the designer can easily obtain a unique solution to the unstable controller. A design method for an adaptive system that recursively adjusts the poles of a stable closed-loop system using fuzzy inference is proposed.