Power plants – Combustion products used as motive fluid – Combined with regulation of power output feature
Reexamination Certificate
2006-02-24
2009-11-03
Casaregola, Louis J (Department: 3741)
Power plants
Combustion products used as motive fluid
Combined with regulation of power output feature
C060S039465, C060S746000
Reexamination Certificate
active
07610746
ABSTRACT:
A combustion control device for a gas turbine is capable of determining respective fuel flow rate control valve position command values based on fuel ratios. The combustion control device for a gas turbine is configured to calculate fuel flow rate command values for respective types of fuel gas based on a total fuel flow rate command value and fuel gas ratios, to calculate fuel gas flow rates based on the fuel flow rate command values and on a function of the fuel flow rate command value and the fuel gas flow rate, to calculate Cv values of the respective fuel flow rate control valves in accordance with a Cv value calculation formula based on the fuel gas flow rates, a fuel gas temperature, and front and back pressures of the respective fuel flow rate control valves, and to calculate respective fuel flow rate control valve position command values based on the Cv values and on a function between the Cv value and apertures of the fuel flow rate control valves.
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Fujii Kentaro
Toyama Kozo
Casaregola Louis J
Mitsubishi Heavy Industries Ltd.
Westerman Hattori Daniels & Adrian LLP
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