A new approach to the dynamic RGA analysis of uncertain systems

Author

Arranz, Miguel Castaño ; Birk, Wolfgang

Author_Institution

Control Eng. Group, Lulea Univ. of Technol., Lulea

fYear

2008

fDate

3-5 Sept. 2008

Firstpage

365

Lastpage

370

Abstract

This paper deals with DRGA analysis for uncertain systems. Uncertainties in a process model can be translated into uncertainties in the DRGA which might invalidate the decision on the variable paring in decentralized control. Bounds for the uncertainties in the DRGA of a multivariable process are derived for a given nominal process model with known uncertainty region. The resulting uncertainty region for the DRGA is used to assess the validity of decisions based on the nominal DRGA. The methodology for the computation of the bounds is currently restricted to the 2-by-2 case. Beside an explanatory example, a case study on a coal injection vessel is conducted and discussed.

Keywords

control system analysis; decentralised control; multivariable control systems; uncertain systems; coal injection vessel; decentralized control; dynamic RGA analysis; multivariable process; nominal process model; uncertain systems; variable paring; Control systems; Design methodology; Distributed control; Gain measurement; Process design; Robust stability; System analysis and design; USA Councils; Uncertain systems; Uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer-Aided Control Systems, 2008. CACSD 2008. IEEE International Conference on

Conference_Location

San Antonio, TX

Print_ISBN

978-1-4244-2221-0

Type

conf

DOI

10.1109/CACSD.2008.4627372

Filename

4627372