Method for operating a gas turbine plant and gas turbine plant for implementing the method

The method involves burning combustion fuels (5, 10) in combustion chambers (4, 9) under application of compressed air (3) and formation of hot gases (6, 11). The hot gases are released from turbines (7, 12) under cork performance, and the compressed air is removed from a compressor (1) and guided as cooling air flows (20, 22-24) for cooling thermally loaded component in the combustion chamber and/or turbine. The cooling air flows reaching a specified operational target are regulated by regulating elements (15-17, 21) depending on the operational target. An independent claim is also included for a gas turbine system.