Asymptotic stability analysis for a class of systems in chemical process. (2015)

• Record Type: Journal Article
• Authors: Liu, Xinghua; Xi, Hongsheng
• Is Part Of: International journal of engineering systems modelling and simulation. Volume 7:Number 3(2015)
• Page Start: 166
• Page End: 176
• Publication Date: 2015
• Subjects: neutral systems -- discrete time-delay -- actuator saturation -- asymptotic stability analysis -- neutral time-delay -- chemical processes -- dissolution tank -- caustic soda -- production control; Engineering systems -- Computer simulation -- Periodicals; Engineering systems -- Mathematical models -- Periodicals; 620.0042
• Languages: English
• ISSNs: 1755-9758

Abstract

Based on the two-stage dissolution tank in the chemical process, the certain and uncertain neutral systems with time-delay and saturating actuators are investigated in the paper. By the model transformation and the delay-dividing approach, new delay-dependent LMI conditions for asymptotic stability are obtained by Lyapunov method. Finally, from the two-stage dissolution tank of solid caustic soda in a chemical plant, numerical examples are provided to show that the proposed results significantly improve the allowed upper bounds of the delay size over some existing ones in the literature. It has important guidance functions to the chemical plant production control.