Pressure equilibrium control for boiler-turbine units

Author

Fang, Fang ; Wei Le

Author_Institution

Sch. of Control Sci. & Eng., North China Electr. Power Univ., Beijing

fYear

2009

fDate

11-13 May 2009

Firstpage

143

Lastpage

147

Abstract

An equilibrium control structure for boiler-turbine units is presented in this paper to restrict the exceeding change of steam pressure. The central component of this structure is named as ldquosteam pressure equilibrium controllerrdquo, which is composed with two parts: the pressure error compensator and the pressure set-point optimizer. The former is designed to regulate the change rate and directions of load demand under certain rules according to the steam pressure error. The latter is designed to change the set-point of steam pressure in a reasonable range if the aberrance of steam pressure is serious. Simulation results show that the proposed control structure has good performance for pressure error control.

Keywords

boilers; error compensation; pressure control; steam turbines; thermal power stations; boiler-turbine unit control; power plant; pressure error compensator; pressure set-point optimizer; steam pressure equilibrium control; Boilers; Control systems; Error correction; Fuels; Linear feedback control systems; Nonlinear control systems; Power generation; Power generation economics; Pressure control; Turbines; boiler-turbine unit; error compensation; set-point optimization; steam pressure equilibrium control;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Intelligence for Measurement Systems and Applications, 2009. CIMSA '09. IEEE International Conference on

Conference_Location

Hong Kong

Print_ISBN

978-1-4244-3819-8

Electronic_ISBN

978-1-4244-3820-4

Type

conf

DOI

10.1109/CIMSA.2009.5069935

Filename

5069935