Patent ID: 8015791

Claim:
A fuel controller for a gas turbine having a combustion system, a fuel supply, a pressure control valve proximate the combustion system and a first pressure sensor proximate the pressure control valve, the fuel controller comprises: a proportional-integrated (PI) logic unit generating a control command for the pressure control valve and receiving a desired fuel pressure input signal representing a desired fuel pressure from a core fuel control system and an actual fuel pressure input signal from the first pressure sensor representing an actual fuel pressure downstream of the pressure control valve, and a plurality of control gains stored in electronic memory of the controller, wherein each difference between the desired fuel pressure input signal and the actual fuel pressure input signal is multiplied by one of the plurality of control gains; wherein each control gain is applicable to a predefined operating condition of the gas turbine, and wherein the controller determines which of said plurality of control gains is to be applied by the PI logic unit based on an actual operating condition of the gas turbine.