Method for operating a gas turbine power plant with flue gas recirculation and gas turbine power plant with exhaust gas recirculation.

摘要

The invention relates to a method of operating a gas turbine power plant with flue gas recirculation, in which, depending on the operating state of the gas turbine (6) a target concentration of at least one component in an exhaust stream and / or the suction flow of the gas turbine (6) after admixing the recirculated exhaust gases is determined , Next, the actual concentration of said at least one constituent in the exhaust stream and / or is measured in the intake flow and controlled a control element for controlling the recirculation flow depending on the target / actual deviation. Further, a gas turbine power plant will be described with exhaust gas recirculation, which for performing the method a controller, in which a target concentration of at least one component is determined in an exhaust stream or the suction flow of the gas turbine (6), and a measuring instrument (36, 37, 38) for includes measuring the actual concentration of said at least one constituent.