Title :
Multivariable feedwater control design for a steam generator
Author :
Younkins, Thomas D. ; Chow, Joe H.
Author_Institution :
General Electric Co., Schenectady, NY, USA
fDate :
4/1/1988 12:00:00 AM
Abstract :
A multivariable feedwater control design for drum water-level regulation in a heat-recovery steam generator is presented. The control design is based on a projective output feedback scheme and is used to coordinate the tandem-connected feedwater valves of a low-pressure and a high-pressure drum. One of the design objectives is to minimize the blowdown from the drums during start-ups. Results demonstrating the control performance and the improvement over a traditional single-loop feedwater control design are shown.<>
Keywords :
boilers; control system synthesis; feedback; level control; multivariable control systems; blowdown minimization; boiler; drum water-level regulation; heat-recovery steam generator; high-pressure drum; low-pressure drum; multivariable control; multivariable feedwater control design; projective output feedback scheme; single-loop control; tandem-connected feedwater valves; Control design; Coordinate measuring machines; Hardware; Output feedback; Power generation; Power measurement; Temperature control; Turbines; Valves; Water heating;
Journal_Title :
Control Systems Magazine, IEEE
