A gas turbine system, gas turbine combustion chamber - control device and gas turbine combustion chamber - a control method

摘要

A gas turbine system comprises a gas turbine (10) and a combustion chamber - control device (11). The gas turbine (10) is provided with a combustion chamber (12) with a pilot nozzle (13), a first main nozzle (14) and a second main nozzle (15) provide. The combustion chamber - control device (11) has a load under refraction detector (16), which a load interruption of the gas turbine (10) is detected, a pilot nozzles flow rates - control unit (17), which the amount of premix fuel, which the pilot nozzle (13) is supplied, is increased, based on the detection of the load interruption, a first main nozzles - flow rates - control unit (18) which the amount of premix fuel, which the first main nozzles (14) is supplied, based on the detection of the load interruption is reduced, and a second main nozzles - flow rates - control unit (19), which the amount of premix fuel, which the second main nozzles (15) is supplied, based on the detection of the load interruption to a predetermined amount of reduced and then the amount of supplied, premix fuel according to a pre-determined period of time has elapsed is further reduced.