Title :
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
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;
Conference_Titel :
Decision and Control, 1993., Proceedings of the 32nd IEEE Conference on
Conference_Location :
San Antonio, TX
Print_ISBN :
0-7803-1298-8
DOI :
10.1109/CDC.1993.325827
