Patent ID: 11959424
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 10:
11. An output correction method for a gas turbine including 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, the output correction method comprising:
executing a correction coefficient creation step of creating a correction coefficient to be used when a control output of the gas turbine is corrected;
executing an output correction step of correcting the control output using the correction coefficient, and outputting a corrected control output as a correction control output;
executing an output reception step of receiving at least an output from an output meter that detects an output of the gas turbine; and
executing an output storage step of storing the output received in the output reception step,
wherein the correction coefficient creation step includes a first coefficient element calculation step of calculating a first coefficient element, a second coefficient element calculation step of calculating a second coefficient element, and a correction coefficient calculation step of calculating the correction coefficient using the first coefficient element and the second coefficient element,
in the output storage step, a reference output that is an output under a condition where the gas turbine outputs a maximum output at a reference time in the past, and an immediately preceding output received in the output reception step under a condition where the gas turbine outputs a maximum output in an immediately preceding time period closer to a current time than to the reference time are stored,
the first coefficient element is a ratio of the immediately preceding output stored in the output storage step to the reference output stored in the output storage step, and
the second coefficient element is a ratio of a current output received in the output reception step under a condition where the gas turbine outputs a maximum output in a current time period between the immediately preceding time period and the current time, to the immediately preceding output stored in the output storage step.