Method for creating maximum output in gas turbine, method for creating output for controlling gas turbine, method for controlling gas turbine, device for executing said methods, and program for causing computer to execute said methods

A maximum output creation method for a gas turbine which includes a compressor that compresses air to generate compressed air, a combustor that combusts fuel in the compressed air to generate combustion gas, and a turbine to be driven by the combustion gas, and in which the compressor includes an intake air amount regulator that regulates a flow rate of the air suctioned by the compressor, the method comprising:

• executing a temperature reception step of receiving an intake air temperature which is a temperature of the air suctioned by the compressor;
• executing a change reception step of receiving a change content of a maximum opening degree of the intake air amount regulator;
• executing a basic maximum output computation step of obtaining a basic maximum output of the gas turbine based on the intake air temperature received in the temperature reception step;
• executing a coefficient creation step of creating a maximum output correction coefficient for correcting the basic maximum output based on the change content of the maximum opening degree received in the change reception step and on the intake air temperature received in the temperature reception step;
• and
• executing a maximum output correction step of correcting the basic maximum output using the maximum output correction coefficient, and outputting the corrected basic maximum output as a maximum output for control.

A maximum output creation program for a gas turbine which includes a compressor that compresses air to generate compressed air, a combustor that combusts fuel in the compressed air to generate combustion gas, and a turbine to be driven by the combustion gas, and in which the compressor includes an intake air amount regulator that regulates a flow rate of the air suctioned by the compressor, the program causing a computer to execute:

• a temperature reception step of receiving an intake air temperature which is a temperature of the air suctioned by the compressor;
• a change reception step of receiving a change content of a maximum opening degree of the intake air amount regulator;
• a basic maximum output computation step of obtaining a basic maximum output of the gas turbine based on the intake air temperature received in the temperature reception step;
• a coefficient creation step of creating a maximum output correction coefficient for correcting the basic maximum output based on the change content of the maximum opening degree received in the change reception step and on the intake air temperature received in the temperature reception step;
• and
• a maximum output correction step of correcting the basic maximum output using the maximum output correction coefficient, and outputting the corrected basic maximum output as a maximum output for control.