Title :
A study on automatic control of steam turbines of fossil power plant with thermal stress constraints in turbine rotors
Author :
Kwak, Seong Woo ; Kim, Byung Kook
Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Seoul, South Korea
Abstract :
A new fuzzy turbine load scheduler is suggested for fast start-up/shut-down and load variation of fossil power plants. The turbine load scheduler determines the load increase/decrease rate by predicting steam conditions and calculating thermal stresses in the turbine rotors. Our load scheduler determines the load variation rate using fuzzy rules based on expert´s knowledge concerning thermal stresses in the turbine rotors. A supervisory inference engine is added to update the expert´s rules and to cope with time variations of the plant. The performance of the proposed scheduler is revealed via simulator for the Seoul Fossil Power Plant IV
Keywords :
fuzzy control; inference mechanisms; power station control; rotors; scheduling; starting; steam power stations; steam turbines; thermal stresses; Seoul Fossil Power Plant IV; automatic control; fast start-up/shut-down; fossil power plant; fuzzy rules; fuzzy turbine load scheduler; load scheduler; load variation rate; simulator; steam turbines; supervisory inference engine; thermal stress constraints; turbine rotors; Automatic control; Boilers; Control systems; Engines; Load management; Power generation; Stress control; Thermal loading; Thermal stresses; Turbines;
Conference_Titel :
Industrial Electronics, Control, and Instrumentation, 1995., Proceedings of the 1995 IEEE IECON 21st International Conference on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-3026-9
DOI :
10.1109/IECON.1995.484177
