Gas compressor control device and gas turbine plant control...

Details Gas compressor control device and gas turbine plant control... Gas compressor control device and gas turbine plant control...

2005-06-21

2005-06-21

Casaregola, Louis J. (Department: 3746)

Power plants

Combustion products used as motive fluid

Combined with regulation of power output feature

C060S039465, C415S027000

Reexamination Certificate

active

06907722

ABSTRACT:
A gas compressor control device and a gas turbine plant control mechanism are disclosed. A fuel gas pressurized by a gas compressor is supplied to a gas turbine via fuel gas piping. A gas turbine control device adjusts the flow rate of the fuel gas into the gas turbine by exercising opening and closing control of a pressure control valve and a flow control valve. The gas compressor control device controls a fuel gas pressure at the outlet of the gas compressor by effecting opening and closing control of a recycle valve and an IGV. If load rejection or load loss occurs, the gas compressor control device opens the recycle valve in a preceding manner and closes the IGV in a preceding manner. Thus, elevation of the fuel gas pressure at the gas compressor outlet can be prevented, and elevation of a fuel gas pressure at an inlet of the gas turbine can be suppressed, thereby ensuring stable operation.

REFERENCES:
patent: 3104524 (1963-09-01), Flanders
patent: 5609016 (1997-03-01), Yamada et al.
patent: 6293766 (2001-09-01), Blotenberg
patent: 6551068 (2003-04-01), Blotenberg
patent: 6-241062 (1994-08-01), None

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