Title :
Design of a performance-adaptive GPC-PI control system for controlling a weigh feeder
Author :
Sato, Takao ; Kotani, T. ; Yamamoto, Takayuki ; Araki, Nozomu ; Konishi, Yasuo
Author_Institution :
Dept. of Mech. Eng., Univ. of Hyogo, Himeji, Japan
Abstract :
In the present paper, we discuss a new design method of a PI control system for controlling a weigh feeder. The PI parameters of a PI controller are based on generalized predictive control (GPC). Since the design parameters of GPC are selected in order to achieve a user-specified control performance, the PI parameters are adaptively updated such that the control performance is improved. In the proposed method, estimated plant parameters of a weigh feeder are updated only when the estimation error increases. Therefore, the control system is not updated frequently, and the control system is updated only when the control performance is sufficiently improved. The effectiveness of the proposed method is demonstrated through numerical examples and experimental results.
Keywords :
PI control; control system synthesis; nonlinear control systems; parameter estimation; predictive control; time-varying systems; GPC design parameters; PI parameters; estimation error; generalized predictive control; performance-adaptive GPC-PI control system design method; plant parameter estimation; user-specified control performance; weigh feeder control; Design methodology; Educational institutions; Materials; PD control; Pi control; Predictive control;
Conference_Titel :
Control Applications (CCA), 2012 IEEE International Conference on
Conference_Location :
Dubrovnik
Print_ISBN :
978-1-4673-4503-3
Electronic_ISBN :
1085-1992
DOI :
10.1109/CCA.2012.6402396
