Title :
A Modified Smith Predictor Controller for Integrating Processes with Long Dead-Time
Author :
Zhai, Chunyan ; Xue, Dingyu ; Li, Shuchen
Author_Institution :
Sch. of Inf. Sci. & Eng., Northeastern Univ., Shenyang
Abstract :
A simple modified Smith predictor controller design is proposed for integrating processes with long dead-time. The overall control structure introduce two physically meaningful tuning parameters. One is used to set the speed of the closed-loop servo response and the other is used to set the performance of the load response. A simple controller tuning method is also developed to obtain the PI tuning parameters. With a given estimation of the uncertainty bound of the dead-time, the stability region of the tuning parameter can be estimated .Two examples are used to demonstrate the improved closed-loop performance of the proposed controller design
Keywords :
chemical industry; closed loop systems; control system synthesis; predictive control; process control; servomechanisms; three-term control; PI tuning parameters; Smith predictor controller design; closed-loop servo response; controller tuning method; integrating processes; long dead-time; Control systems; Design engineering; Electrical equipment industry; Industrial control; Information science; Predictive models; Process control; Proportional control; Servomechanisms; Uncertainty; Dead-time compensation; Integrating process; PID controller; Smith predictor;
Conference_Titel :
Information Acquisition, 2006 IEEE International Conference on
Conference_Location :
Weihai
Print_ISBN :
1-4244-0528-9
Electronic_ISBN :
1-4244-0529-7
DOI :
10.1109/ICIA.2006.305976
