Title :
Generalized minimum variance self-tuning pole-assignment controller with a PID structure
Author :
Yamamoto, Toru ; Inoue, Akira ; Shah, Sirish L.
Author_Institution :
Dept. of Commun. Eng., Okayama Prefecural Univ., Soja, Japan
Abstract :
In this paper, a new self-tuning PID controller design scheme is proposed. The PID parameters are calculated online based on the relationship between the PID and generalized minimum variance control(GMVC) laws. In designing GMVC system, user-specified polynomials are computed by considering the pole-assignment in the control system. Therefore, this scheme has approximate minimum variance properties with specified closed-loop time-constant. The newly proposed control scheme can also deal with unknown and/or varying process time-delays. The proposed control scheme is experimentally evaluated on a SISO air pressure control system. Experimental results illustrate the effectiveness of this new scheme
Keywords :
adaptive control; closed loop systems; control system synthesis; pole assignment; polynomials; self-adjusting systems; three-term control; uncertain systems; GMVC laws; SISO air pressure control system; approximate minimum variance properties; generalized minimum variance control laws; generalized minimum variance self-tuning pole-assignment controller; online parameter calculation; self-tuning PID controller design scheme; specified closed-loop time-constant; unknown process time-delays; user-specified polynomials; varying process time-delays; Chemical engineering; Communication system control; Control systems; Design engineering; Modeling; Polynomials; Postal services; Pressure control; Systems engineering and theory; Three-term control;
Conference_Titel :
Control Applications, 1999. Proceedings of the 1999 IEEE International Conference on
Conference_Location :
Kohala Coast, HI
Print_ISBN :
0-7803-5446-X
DOI :
10.1109/CCA.1999.806156
