Title :
Fuzzy adaptive pole placement control considering stability index
Author :
Ratiroch-anant, Phornsuk ; Surakampontorn, Wanlop ; Hirata, Hiroshi ; Anabuki, Masatoshi ; Ngamwiwit, Jongkol
Author_Institution :
Fac. of Eng., King Mongkut´´s Inst. of Technol., Bangkok, Thailand
Abstract :
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
Keywords :
adaptive control; closed loop systems; control system synthesis; fuzzy control; pole assignment; stability; adaptive system; design strategy; fuzzy adaptive pole placement control; fuzzy inference; stability index; stability indices; stable closed-loop system; system parameter; unstable poles; Adaptive control; Adaptive systems; Automatic control; Control systems; Design methodology; Fuzzy control; Fuzzy systems; Programmable control; Stability; State feedback;
Conference_Titel :
Circuits and Systems, 1998. IEEE APCCAS 1998. The 1998 IEEE Asia-Pacific Conference on
Conference_Location :
Chiangmai
Print_ISBN :
0-7803-5146-0
DOI :
10.1109/APCCAS.1998.743909
