METHOD FOR CONTROLLING THE FUEL SUPPLY TO BURNERS OF A BURNER GROUP AND BURNER CONTROLLER

摘要

A method for controlling the fuel supply to several burners (2) of a burner group (1) and a corresponding burner controller are described. In the method the temperature (TY) in the burner group (1) is determined as control variable and in dependence on the control deviation of the temperature (TY) determined for the burner group (1) to a specified setpoint temperature (TSP) the fuel supply to the several burners (2) of the burner group (1) is specified as correcting variable. It is provided that the controller is formed as temperature to flow cascade controller with a temperature master controller (8) for all burners (2) of the burner group (1) and a plurality of fuel supply slave controllers (10) for one burner (2) each or one burner subgroup each wherein the temperature master controller (8) specifies a common mean fuel supply (XAVG) for each of the burners (2) of the burner group (1) and each fuel supply slave controller (10) uses at least one disturbance variable (TT TYL/R) associated to the burner (2) and/or the burner subgroup in order to take account of a correction of the fuel supply (X) to the burner or the burner subgroup.