Title :
Two degree-of-freedom internal model control for first oder open-loop unstable processes with time delay
Author :
Liang, Ding ; Zhan, Dai Wen ; Aiping, Yang
Abstract :
A two-degree-of-freedom control structure is used for chemical and industrial process with unstable pole and time delay based on modified internal model control. At first, a feedback proportional controller is applied to meet the objective of stable generalized second order plus delay time with overdamp. And then, the tracking controller is designed by the inverse of the model and the performance evaluation, two-step method is used to design the controller load disturbance rejection. The setpoint response and the disturbance response are completely decoupled, at the same time, the both of controller parameters can be adjusted independently to achieve the satisfying control effect. At last, simulation examples show the robust sability and the effectiveness of the control scheme.
Keywords :
chemical engineering; control system synthesis; delays; feedback; open loop systems; process control; robust control; tracking; 2 DOF internal model control; chemical process; controller load disturbance rejection; delay time; disturbance response; feedback proportional controller; first order open-loop unstable processes; industrial process; performance evaluation; robust stability; setpoint response; time delay; tracking controller design; Delay; Delay effects; Educational institutions; Electronic mail; Load modeling; Process control; Robustness; Open-loop Unstable; Overdamp; Robust Stability; Two-Degree-Of-Freedom;
Conference_Titel :
Control and Decision Conference (CCDC), 2012 24th Chinese
Conference_Location :
Taiyuan
Print_ISBN :
978-1-4577-2073-4
DOI :
10.1109/CCDC.2012.6244348
