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

Volume

5

fYear

2001

fDate

2001

Firstpage

3509

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;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 2001. Proceedings of the 2001

Conference_Location

Arlington, VA

ISSN

0743-1619

Print_ISBN

0-7803-6495-3

Type

conf

DOI

10.1109/ACC.2001.946176

Filename

946176