METHODS FOR CONTROLLING FUEL SPLITS TO A GAS TURBINE COMBUSTOR
First Claim
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1. A method for controlling fuel splits to a combustor of a gas turbine, the method comprising:
- determining a combustion reference temperature of the gas turbine;
measuring an inlet guide vane angle of the gas turbine;
determining at least one fuel split biasing value based on the combustion reference temperature and the inlet guide vane angle; and
adjusting a nominal fuel split schedule of the gas turbine based on the at least one fuel split biasing value.
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Abstract
Methods for controlling fuel splits to a combustor of a gas turbine are disclosed. The methods may include determining a combustion reference temperature of the gas turbine, measuring a biasing parameter of the gas turbine, determining at least one fuel split biasing value based on the combustion reference temperature and the biasing parameter and adjusting a nominal fuel split schedule based on the at least one fuel split biasing value.
30 Citations
20 Claims
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1. A method for controlling fuel splits to a combustor of a gas turbine, the method comprising:
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determining a combustion reference temperature of the gas turbine; measuring an inlet guide vane angle of the gas turbine; determining at least one fuel split biasing value based on the combustion reference temperature and the inlet guide vane angle; and adjusting a nominal fuel split schedule of the gas turbine based on the at least one fuel split biasing value. - View Dependent Claims (2, 3, 4, 5, 6, 9, 10, 11, 12)
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- 7. The method of claim 7, wherein determining the at least one fuel split biasing value comprises locating the combustion reference temperature, the inlet guide vane angle, and the at least one secondary biasing parameter in at least one lookup table or inputting the combustion reference temperature, the inlet guide vane angle and the secondary biasing parameter into at least one correlated mathematical function.
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13. A method for controlling fuel splits to a combustor of a gas turbine, the method comprising:
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determining a combustion reference temperature of the gas turbine; measuring an inlet guide vane angle of the gas turbine; measuring at least one secondary biasing parameter of the gas turbine; determining at least one fuel split biasing value based on the combustion reference temperature, the inlet guide vane angle and the at least one secondary biasing parameter; and adjusting a nominal fuel split schedule of the gas turbine based on the at least one fuel split biasing value. - View Dependent Claims (14, 15, 16)
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17. A method for controlling fuel splits to a combustor of a gas turbine, the method comprising:
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determining a combustion reference temperature of the gas turbine; measuring a biasing parameter of the gas turbine, wherein the biasing parameter is a parameter selected from the group consisting of inlet guide vane angle, compressor discharge pressure, compressor pressure ratio, compressor discharge temperature, ambient temperature, compressor inlet air mass flow, gaseous fuel flow and liquid fuel flow; determining at least one fuel split biasing value based on the combustion reference temperature and the biasing parameter; and adjusting a nominal fuel split schedule based on the at least one fuel split biasing value. - View Dependent Claims (18, 19, 20)
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Specification