Title :
Multi-model robust control for nonlinear chemical processes: a passivity based approach
Author :
Li, Huaizhong ; Lee, Peter L. ; Bahri, Parisa A.
Author_Institution :
Sch. of Eng., Murdoch Univ., Perth, WA, Australia
Abstract :
The robust control problem for nonlinear multi-unit chemical processes is addressed. The processes discussed admit a set of plant decompositions in an operating region which corresponds to the variation of the operating point caused by disturbances. A passivity based approach is proposed to design decentralized controllers for these processes, namely, the proposed method determines the best local plant decompositions based on evaluation of a passivity index, and assesses the closed-loop stability and performance using the best local plant decompositions. Local decentralized controllers can be designed based on the best local plant decomposition to achieve the desired closed-loop stability and performance
Keywords :
chemical industry; closed loop systems; decentralised control; feedback; nonlinear control systems; process control; robust control; chemical process control; closed-loop systems; decentralized controllers; feedback; multiple model control; nonlinear control systems; passivity index; robust control; stability; Australia; Centralized control; Chemical processes; Control systems; Feedback; Nonlinear control systems; Process control; Robust control; Stability; Uncertain systems;
Conference_Titel :
American Control Conference, 2001. Proceedings of the 2001
Conference_Location :
Arlington, VA
Print_ISBN :
0-7803-6495-3
DOI :
10.1109/ACC.2001.946176
