Title :
Simple predictor for processes with time delay
Author :
Zhang, Weidong ; Xu, Xiaoming
Author_Institution :
Dept. of Autom., Shanghai Jiaotong Univ., China
Abstract :
A method is presented based on optimal control theory for the design of a Smith predictor. The resulting controller has two notable merits. First, explicit formulas are obtained for calculating parameters of the controller. Second, the nominal performance of closed loop system, such as overshoot and rise time, can be evaluated quantitatively. It is found that the proposed Smith predictor can be equivalent to the Dahlin controller and a PID controller. A numerical example is provided to illustrate the method
Keywords :
closed loop systems; control system synthesis; delay systems; optimal control; predictive control; Dahlin controller; PID controller; Smith predictor; explicit formulas; nominal performance; optimal control theory; overshoot; rise time; time delay processes; Automatic control; Closed loop systems; Control system synthesis; Control systems; Delay effects; Optimal control; Predictive models; Process control; Three-term control; Transfer functions;
Conference_Titel :
American Control Conference, 1999. Proceedings of the 1999
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-4990-3
DOI :
10.1109/ACC.1999.783155
