Gas turbine control device

A gas turbine control device for controlling a fuel flow rate or an airflow rate in response to a target power output of the gas turbine, the fuel and the air being supplied to a plurality of combustors, the device comprising:

• a first function generator for establishing the fuel flow rate or the airflow rate, in response to the target power output, the fuel and the air being supplied to each combustor;
• a second function generator for establishing a correction value to correct the fuel flow rate or the airflow rate established by the first generator on the basis of the suction air temperature detected by a suction air temperature sensor that is provided so as to detect the suction air temperature at an air inlet of the compressor;
• a third function generator for establishing an amendment value to amend the correction value established by the second function generator as to the fuel flow rate or the airflow rate, in taking the target power output into consideration;
• a first computing element for computing a correction-amendment value by use of the correction value established by the second function generator and the amendment value established by the third function generator;
• a second computing element for computing an order fuel flow rate or an order airflow rate by adding the correction-amendment value to the fuel flow rate or the airflow rate either of which is established in the first function generator, the order fuel flow rate or the order airflow rate being used to determine the flow rate as to the fuel or the air to be supplied to the combustor.