System and apparatus for gas turbine engine lean blowout avoidance
First Claim
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1. A gas turbine system comprising:
- a gas turbine engine comprising at least one combustor can;
at least one of a combustor dynamic 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;
compare the filtered signal to a predetermined LBO threshold; and
control said gas turbine system to facilitate reducing the probability of lean blowout (LBO).
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Abstract
A method of monitoring and controlling the combustion dynamics of a gas turbine engine system is provided. The system includes at least one gas turbine that includes at least one combustor can. The method includes receiving a signal from a gas turbine engine sensor that is indicative of combustion dynamics in at least one of the combustor cans, processing the received signal to determine a probability of lean blowout for at least one combustor can, and controlling the gas turbine engine system to facilitate reducing a probability of a lean blowout (LBO) event using the determined probability of lean blowout.
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Citations
16 Claims
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1. 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 dynamic 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; compare the filtered signal to a predetermined LBO threshold; and control said gas turbine system to facilitate reducing the probability of lean blowout (LBO). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification