SYSTEM AND METHOD FOR OPERATING A GAS TURBINE

摘要

A system for operating a gas turbine includes a controller configured to execute logic stored in a memory that causes the controller to determine a frequency, a coherence and, optionally, a phase and/or an amplitude, of a combustion instability; to compare the frequency and the coherence, and, optionally, the phase and/or the amplitude, of the combustion instability to a respective predetermined limit; and to adjust at least one parameter of the gas turbine if the frequency, the coherence, and, optionally, the phase and/or the amplitude of the combustion instability is actionable relative to the respective predetermined limit. A related method of operating the gas turbine is also disclosed.

主权项

1. A system for operating a gas turbine, the system comprising:
a. a compressor section configured to receive a working fluid and to produce a compressed working fluid; b. a plurality of combustors downstream from the compressor section, each combustor comprising a fuel injector, the fuel injector receiving fuel at a fuel temperature and a fuel flow rate; and c. a controller configured to execute logic stored in a memory, the logic causing the controller:
i. to determine a frequency of a combustion instability and a coherence of the combustion instability;ii. to compare the frequency of the combustion instability to a predetermined frequency limit and the coherence of the combustion instability to a predetermined coherence limit; andiii. to adjust at least one parameter of the gas turbine if the frequency of the combustion instability is actionable relative to the predetermined frequency limit and the coherence of the combustion instability is actionable relative to the predetermined coherence limit.