Title :
Bilinear Discrete PID×(n-2) stage PD cascade controller for SISO systems
Author :
Smerpitak, Krit ; Ukakimaparn, Prapart ; Trisuwannawat, Thanit ; Lavanprakai, Prera
Author_Institution :
Dept. of Instrum. & Control Eng., King Mongkut´´s Inst. of Technol. Ladkrabang (KMITL), Bangkok, Thailand
Abstract :
To obtain the response of sampled system better than of using the Zero Order Hold (ZOH) method. The approximation to the integral using Bilinear discretization is proposed. The results from simulation show that the obtained response from the bilinear or Tustin method is better than the ZOH method at the same sampling time. However, if another of descretization method is necessaries, the overall closed-loop system should be considered.
Keywords :
PD control; approximation theory; cascade control; closed loop systems; sampled data systems; sampling methods; SISO systems; Tustin method; approximation; bilinear discrete PID×(n-2) stage PD cascade controller; bilinear discretization; closed-loop system; sampled system; sampling time; zero order hold method; Approximation methods; Closed loop systems; Equations; PD control; Poles and zeros; Bilinear; Discrete PID controller; Root Locus Technique;
Conference_Titel :
Control, Automation and Systems (ICCAS), 2012 12th International Conference on
Conference_Location :
JeJu Island
Print_ISBN :
978-1-4673-2247-8
