VARIABLE SPEED FUEL PUMPING SYSTEM FOR A GAS TURBINE AND METHOD OF OPERATION

摘要

A liquid fuel system (40) is provided for controlling gas turbines. The fuel system (40) preferably includes a variable speed, coupled-element fuel pumping CEFP assembly (52) positioned in fluid communication with a fuel supply and one turbine combustor (44) to provide a variable supply of fuel to the turbine combustor (44). The variable speed fuel pumping assembly (52) includes one coupled-element fuel pump assembly and a variable speed drive assembly connected to the CEFP assembly. The system (40) also has a variable speed fuel pumping controller (60) connected to the variable speed drive assembly to control the speed and timing of the variable speed, coupled-element fuel pumping assembly (52) to thereby control the turbine combustor (44) and one gas turbine associated therewith. A method of controlling fuel fluid flow to a gas turbine combustor (44) positioned to combust fuel for a gas turbine is also provided.