Fuel control and tuning method for dry low NOx gas turbine engines

摘要

A control system and methodology for a gas turbine (12) having multiple fuel valves (60) for multiple combustion chambers (16) involves tuning the fuel valves (60) to associated combustion chambers (16) to optimize nitrous oxide emissions; dynamic pressure, and variation in fuel/air ratio. Further, fine tuning of the fuel valves (60) is then used to maintain dynamic pressure oscillations, nitrous oxide emissions or variation in fuel/air ratio within predetermined limits.