A new method for selecting weighting matrices of LQ regulators and its application to an industrial turbine

Author

Hiroe, Takaharu ; Morimoto, Toshimitsu ; Inoue, Shin-ichi ; Takamatsu, Hiroshi

Author_Institution

Electron. Div., Mitsubishi Heavy Ind. Ltd., Kobe, Japan

fYear

1993

fDate

15-17 Dec 1993

Firstpage

3333

Abstract

This paper describes a new method for selecting weighting matrices of LQ regulators and its application to decoupling control of an industrial turbine for a chemical plant. The method called “ZED method”, yields weighting matrices which give desirable closed loop responses, from simple calculations. The method is based on asymptotic modal properties of multivariable LQ regulators as control weights tend to zero. Details of ZED method is explained first. Then its application to decoupling of an industrial turbine is illustrated. The operational result was satisfactory and the validity of ZED method is demonstrated

Keywords

chemical industry; closed loop systems; control system synthesis; multivariable control systems; optimal control; turbines; ZED method; asymptotic modal properties; chemical plant; closed loop responses; decoupling control; industrial turbine; linear quadratic regulators; multivariable LQ regulators; weighting matrix selection; Chemical industry; Design methodology; Industrial control; Machinery; Regulators; Riccati equations; Servomechanisms; Steady-state; Turbines; Weight control;

fLanguage

English

Publisher

ieee

Conference_Titel

Decision and Control, 1993., Proceedings of the 32nd IEEE Conference on

Conference_Location

San Antonio, TX

Print_ISBN

0-7803-1298-8

Type

conf

DOI

10.1109/CDC.1993.325827

Filename

325827