Method and device for regulating the operating line of a gas turbine combustion chamber

摘要

A regulating device for regulating the course of a gas turbine plant has at least one sensor for sensing a measurement variable and for outputting a measurement signal which represents the measurement variable; at least one adjusting system for influencing air and/or fuel supply to a combustion chamber of the gas turbine plant on the basis of a correcting variable; and a regulator connected to the at least one sensor so as to receive the measurement variable and to the at least one adjusting system for outputting the correcting variable, the regulator being designed to determine the correcting variable on the basis of the measurement variable received and its deviation from a pilot variable. At least one sensor is designed to sense the variation in time of at least one burner or combustion chamber parameter as measurement variable.

主权项

1. A regulating method for regulating the operating line of a gas turbine plant, comprising:
capturing a controlled variable, comparing the captured controlled variable with a predetermined reference variable; determining a manipulated variable based on the comparison of the captured controlled variable with the reference variable, and outputting the determined manipulated variable to an adjusting facility influencing an air and/or fuel supply to a combustion chamber with a controlled variable, that indicates an approach of a combustion flame to a stability limit, being used as the controlled variable, wherein the captured controlled variable is the change in an alternating pressure over time captured by a sensor disposed at a burner flange comprising a burner, wherein the burner flange is disposed on an outer housing that surrounds at least partially the combustion chamber, wherein the sensor extends through the burner flange, whereby a portion of the sensor faces a combustion chamber plenum.