Title :
Thermal power plant as contributed by coal mill control
Author :
Jun, Cai ; Dezheng, Lu ; Pingyang, Wang
Author_Institution :
Electr. Power Res. Inst., Beijing, China
Abstract :
In recent years, the load following capability of thermal power plants has been actively researched, as power system interconnection unavoidably brings about complicated load variations. The key to improving the load following capability is the control of the fuel supply to the burner, which is provided by the coal mill. The conventional method of controlling the coal mill is by a PID system, which deteriorates when operation deviates from the set point. An expert system of a fuzzy PID algorithm for the fan mill of direct firing pulverizing systems is proposed in this paper. The proposed algorithm not only improves the dynamic characteristics of main steam pressure control but also improves the load following capability
Keywords :
coal; combustion; control system synthesis; expert systems; fuzzy control; grinding; power station control; power station load; pressure control; pulverised fuels; thermal power stations; three-term control; coal mill control; direct firing pulverizing systems; dynamic characteristics; expert system; fuzzy PID algorithm; load following capability; load variations; main steam pressure control; power system interconnection; thermal power plants; Control systems; Expert systems; Fuels; Hybrid intelligent systems; Load management; Milling machines; Power generation; Power system interconnection; Thermal loading; Three-term control;
Conference_Titel :
Power System Technology, 1998. Proceedings. POWERCON '98. 1998 International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-4754-4
DOI :
10.1109/ICPST.1998.729276
