Title :
Integrated large-scale multivariable control and real-time optimization of a power plant
Author :
Emoto, Genichi ; Tsuda, Atushi ; Takeshita, Toshihiko ; Monical, Mark T. ; Nakagawa, Seiji ; Fujita, Kaoru
Author_Institution :
Mitsubishi Chem. Corp., Okayama, Japan
Abstract :
Integrated large-scale multivariable control and closed-loop real-time optimization was implemented on the power plant at Mitsubishi chemical (Mizushima) plant. The multivariable control system controls 3 boilers and 5 turbines simultaneously. The control system also controls the site-wide steam header pressure. The real-time optimization system is composed of a power plant model and ethylene plant steam turbine model, and the number of model´s equations is about 10,000. The real-time optimization system optimizes turbine load in the power plant and the site-wide steam balance with about 10 minutes frequency. Most efficient operation of the power plant is realized by the integrated system
Keywords :
boilers; closed loop systems; distributed control; large-scale systems; multivariable control systems; optimisation; power plants; predictive control; pressure control; real-time systems; steam turbines; Mitsubishi chemical plant; boilers; closed-loop systems; distributed control; dynamic matrix control; ethylene plant; large-scale systems; multivariable control; optimization; power plant; predictive control; pressure control; real-time systems; steam turbines; Boilers; Chemicals; Control systems; Equations; Large scale integration; Power generation; Power system modeling; Pressure control; Real time systems; Turbines;
Conference_Titel :
Control Applications, 1998. Proceedings of the 1998 IEEE International Conference on
Conference_Location :
Trieste
Print_ISBN :
0-7803-4104-X
DOI :
10.1109/CCA.1998.721684
