Title :
A simplified model based supercritical power plant controller
Author :
Shinohara, Wataro ; Koditschek, Daniel E.
Author_Institution :
Res. & Dev. Center, Toshiba Corp., Kawasaki, Japan
Abstract :
We present a simplified state-space model of a once-through supercritical boiler turbine power plant. This phenomenological model has been developed from a greatly simplified application of the first principles of physical laws. When we fit our model to a far more complex and physically accurate simulation model commissioned by EPRI for operator training, we find that the input-output responses are surprisingly close. Encouraged by this initial success, we describe some initial steps toward a design method for supercritical boiler control suggested by the geometric structure arising from the simplified model. Preliminary simulation results suggest that this approach may offer a closed loop response considerably improved relative to that achieved by the linear controllers presently in place in typical industrial settings
Keywords :
boilers; closed loop systems; dynamics; modelling; nonlinear control systems; state-space methods; steam power stations; steam turbines; EPRI; boiler turbine power plant; closed loop response; dynamics; fossil fuel power plants; input-output responses; nonlinear controller; state-space model; supercritical power plant controller; Boilers; Chemical industry; Design methodology; Fluid dynamics; Fuel processing industries; Furnaces; Industrial control; Power generation; Solid modeling; Turbines;
Conference_Titel :
Decision and Control, 1996., Proceedings of the 35th IEEE Conference on
Conference_Location :
Kobe
Print_ISBN :
0-7803-3590-2
DOI :
10.1109/CDC.1996.577567