Abstract: An output corrector is provided with an adjustment coefficient creating unit which creates an adjustment coefficient, an output adjusting unit which adjusts a control output using the adjustment coefficient, and an output accepting unit which accepts an output from an output meter for detecting the output of a gas turbine. The adjustment coefficient creating unit includes a first coefficient element calculating unit which calculates a first coefficient element, a second coefficient element calculating unit which calculates a second coefficient element, and an adjustment coefficient calculating unit which calculates the adjustment coefficient using the first and second coefficient elements. The first coefficient element is the ratio of an immediately preceding output in an immediately preceding time period, to a reference output at a reference time point in the past. The second coefficient element is the ratio of the current output in the current time period, to the immediately preceding output.

Abstract: An output corrector is provided with an adjustment coefficient creating unit which creates an adjustment coefficient, an output adjusting unit which adjusts a control output using the adjustment coefficient, and an output accepting unit which accepts an output from an output meter for detecting the output of a gas turbine. The adjustment coefficient creating unit includes a first coefficient element calculating unit which calculates a first coefficient element, a second coefficient element calculating unit which calculates a second coefficient element, and an adjustment coefficient calculating unit which calculates the adjustment coefficient using the first and second coefficient elements. The first coefficient element is the ratio of an immediately preceding output in an immediately preceding time period, to a reference output at a reference time point in the past. The second coefficient element is the ratio of the current output in the current time period, to the immediately preceding output.

Abstract: A gas turbine includes: multiple fuel systems; a combustor that combusts fuels from the multiple fuel systems in compressed air to generate combustion gas; and a turbine that is driven by the combustion gas. A flow volume ratio calculation device which calculates the flow volume ratio of the fuels flowing in the multiple fuel systems includes calculators that receive values of a first parameter and a second parameter capable of expressing the combustion state in the combustor, and that calculate the flow volume ratio relative to the received values of the two parameters from a predetermined relationship between the two parameters and the flow volume ratio.

Abstract: A flow ratio calculation device includes: a flow volume ratio computer that, using a predetermined relationship between a first parameter that can express a combustion state in a combustor and a flow volume ratio of fuels flowing through multiple fuel systems, is configured to find the flow volume ratio based on a value of the first parameter; a correction value computer configured to find a correction value of the flow volume ratio when a load of a gas turbine changes; a fluctuation sensor configured to sense fluctuations in a value correlated with the load of the gas turbine; and a corrector configured to correct the flow volume ratio found by the flow volume ratio computer with the correction value found by the correction value computer when a fluctuation in the value correlated with the load of the gas turbine is sensed by the fluctuation sensor.

Abstract: A flow ratio calculation device is provided with: a flow volume ratio computer that, using a predetermined relationship between a first parameter that can express a combustion state in a combustor and a flow volume ratio of fuels flowing through multiple fuel systems, finds a flow volume ratio based on the value of the first parameter; a correction value computer that finds a correction value of the flow volume ratio when the load of a gas turbine changes; a fluctuation sensor that senses fluctuations in a value correlated with the gas turbine load; and a corrector that corrects the flow volume ratio found by the flow volume ratio computer with the correction value found by the correction value computer when a fluctuation in the load correlated value is sensed by the fluctuation sensor.

Abstract: A gas turbine includes: multiple fuel systems; a combustor that combusts fuels from the multiple fuel systems in compressed air to generate combustion gas; and a turbine that is driven by the combustion gas. A flow volume ratio calculation device which calculates the flow volume ratio of the fuels flowing in the multiple fuel systems includes calculators that receive values of a first parameter and a second parameter capable of expressing the combustion state in the combustor, and that calculate the flow volume ratio relative to the received values of the two parameters from a predetermined relationship between the two parameters and the flow volume ratio.