Gas turbine control apparatus and gas turbine system using the same
AssigneeMitsubishi Heavy Industries, Ltd.
InventorsMasumi Nomura, Kozo Toyama
Life of this patent
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Abstract
In a gas turbine control apparatus, a frequency analyzing section frequency-analyzes at least one of pressure oscillation in combustors of a gas turbine and acceleration oscillation of each of the combustors and outputs a first frequency analysis result as the result of frequency analysis for a plurality of predetermined frequency bands. A control unit controls at least one of a first fuel flow rate of fuel and a first air flow rate of air based on the first frequency analysis result for the plurality of frequency bands. The fuel and the air are supplied to the gas turbine.
Claims16
A gas turbine control apparatus comprising:
- a frequency analyzing section which frequency-analyzes an at acceleration oscillation in at least one combustor of a gas turbine and outputs a first frequerncy analysis result based on a predetermined frequency bands;
- and
- a control unit which controls at least one of a first fuel flow rate of fuel and a first air flow rate based on said first frequency analysis result, said fuel and said air being supplied to said gas turbine.
A gas turbine system comprising:
- a gas turbine having combustors;
- a frequency analyzing section which frequency-analyzes an acceleration oscillation in at least one combustor of a gas turbine and outputs a first frequency analysis result based on a predetermined frequency bands;
- and
- a control unit which controls at least one of a first fuel flow rate of fuel and a first air flow rate based on said first frequency analysis result, said fuel and said air being supplied to said gas turbine.
A gas turbine control apparatus comprising:
- a frequency analyzing section configured to analyzed pressure oscillation in at least one combustor of gas turbine and to output a first frequency analysis result based on a plurality of predetermined frequency bands;
- and
- a control unit configured to control a first air flow rate based on said first frequency analysis result, said air being supplied to said gas turbine.
A gas turbine system comprising:
- a gas turbine having combustors;
- a frequency analyzing section configured to analyzed pressure oscillation in at least one combustor of gas turbine and to output a first frequency analysis result based on a plurality of predetermined frequency bands;
- and
- a control unit configured to control a first air flow rate based on said first frequency analysis result, said air being supplied to said gas turbine.
Dependencies are inferred from the claim text.