Title :
Stability Gain Interval of Dahlin Control System
Author_Institution :
Sch. of Comput., South China Normal Univ., Guangzhou
Abstract :
Process gain variations deeply affect the stability of the Dahlin control system. Using the root locus method, a stability criterion for the Dahlin control system in the presence of process gain variations is derived. The root locus is with respect to the desired closed-loop time constant. Based on the stability criterion, it can be obtained that if the desired closed-loop time constant increases, the stability gain interval will expand. The process with larger time constant has smaller stability gain interval. Numerical examples verify the conclusions
Keywords :
closed loop systems; control system analysis; root loci; stability; Dahlin control system; closed-loop time constant; process gain variations; root locus method; stability criterion; stability gain interval; Automation; Control systems; Delay effects; Equations; Intelligent control; Performance gain; Robust stability; Stability analysis; Stability criteria; Transfer functions; Dahlin controller; Process gain; Robust stability; Root locus;
Conference_Titel :
Intelligent Control and Automation, 2006. WCICA 2006. The Sixth World Congress on
Conference_Location :
Dalian
Print_ISBN :
1-4244-0332-4
DOI :
10.1109/WCICA.2006.1712387
