Title :
Robust PID controller and its application
Author :
Namba, R. ; Yamamoto, Takayuki ; Kaneda, M.
Author_Institution :
Dept. of Commun. Eng., Okayama Prefectural Univ., Japan
Abstract :
PID controllers have been widely used in many industrial processes because they have only three control parameters, and we can easily understand their physical meanings. However, it is difficult to tune their parameters in the case where the control system has uncertainties, for example, modeling errors, system fluctuation, and so on. Therefore, we propose a design scheme of robust PID controllers. First, we design a PID controller based on the generalized minimum variance control (GMVC) scheme which is a self-tuning control strategy. Next, we present a method for the design of a weighting factor included in the cost function of GMVC from the viewpoint of robust stabilities. Finally, we discuss the application for an experimental air pressure control system
Keywords :
adaptive control; control system synthesis; errors; pressure control; robust control; self-adjusting systems; three-term control; uncertain systems; air pressure control system; control parameters; control system design; cost function; generalized minimum variance control; industrial process control; modeling errors; parameter tuning; robust PID controller; robust stabilities; self-tuning control; system fluctuation; uncertainties; weighting factor; Control system synthesis; Cost function; Design methodology; Electrical equipment industry; Error correction; Fluctuations; Industrial control; Robust control; Three-term control; Uncertainty;
Conference_Titel :
Systems, Man, and Cybernetics, 1997. Computational Cybernetics and Simulation., 1997 IEEE International Conference on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-4053-1
DOI :
10.1109/ICSMC.1997.633233
