Title :
H∞ Loop Shaping Control of time delay systems
Author :
Farhati, S. ; Bel Hadj Ali Naoui, Saloua ; Abdelkrim, Mohamed Naceur
Author_Institution :
Nat. Eng. Sch. of Gabes (ENIG), Univ. of Gabes, Zrig, Tunisia
Abstract :
In this paper, the H∞ Loop Shaping Control (HLSC) strategy was studied; a systematic approach for weight selection based on the sensitivity function was proposed and applied to a first-order time delay system, then compared to the Internal Model Control (IMC) approach. Two cases were proposed for time delay: upper or lower then system time constant. The synthesis was based on first and second order Padé approximation of delay and good results were given for both methods.
Keywords :
H∞ control; approximation theory; delays; shape control; H∞ loop shaping control; HLSC; IMC; Padé approximation; internal model control; sensitivity function; time delay systems; weight selection; Approximation methods; Delay; Delay effects; Robustness; Sensitivity; Shape; Transfer functions; H∞ Loop Shaping Control (HLSC); Internal Model Control (IMC); Padé approximation; constant delay; sensitivity function;
Conference_Titel :
Communications, Computing and Control Applications (CCCA), 2011 International Conference on
Conference_Location :
Hammamet
Print_ISBN :
978-1-4244-9795-9
DOI :
10.1109/CCCA.2011.6031512
