SYSTEM AND APPARATUS FOR GAS TURBINE ENGINE LEAN BLOWOUT AVOIDANCE
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Accused Products
Abstract
A gas turbine system is provided. The system includes a gas turbine engine including at least one combustor can, at least one of a combustor dynamics pressure sensor and flame sensor coupled to at least one of the combustor cans, the sensor configured to monitor combustion in each respective can and transmit a signal indicative of combustion in each respective can, and at least one control system configured to receive the signal from said at least one sensor. The control system is programmed to filter the combustion signal to determine the presence of a lean blowout (LBO) precursor, determine a probability of LBO from the filtered signal, and control the gas turbine system to facilitate reducing the probability of LBO.
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Citations
52 Claims
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1-32. -32. (canceled)
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33. A gas turbine system comprising:
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a gas turbine engine comprising at least one combustor can;
at least one of a combustor dynamics pressure sensor and flame sensor coupled to at least one of said combustor cans, said sensor configured to monitor combustion in each said respective can and transmit a signal indicative of combustion in each said respective can; and
at least one control system configured to receive the signal from said at least one sensor, said control system programmed to;
filter the combustion signal to determine the presence of a LBO precursor;
determine a probability of lean blowout (LBO) from the filtered signal; and
control said gas turbine system to facilitate reducing the probability of lean blowout (LBO). - View Dependent Claims (34, 35, 36, 37, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52)
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38. A computer program embodied on a computer readable medium for controlling a gas turbine engine system, said system comprising a gas turbine engine that includes at least one combustor can, said computer program comprising a code segment that receives user selection input data and then instructs said system to:
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filter a gas turbine engine signal indicative of combustion in at least one of the combustor cans to only pass a portion of the signal that is between at least one of approximately ten Hz to approximately twenty five Hz, approximately eighty Hz to approximately one hundred and twenty Hz, and approximately one hundred thirty Hz to approximately one hundred sixty Hz;
compare the filtered signal to a predetermined lean blowout threshold; and
control the gas turbine engine system to facilitate reducing a probability of a lean blowout event using the comparison. - View Dependent Claims (39, 40, 41)
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Specification