Multi-variable fleet optimisation method and system

A system for optimizing the operation of a fleet of gas turbine engines, the system comprising:

• plural power managers local to and connected to the gas turbine engines, and configured to measure values for plural control actuator settings within each of the gas turbine engines;
• and
• a remote, fleet management computer system in communication with each of the power managers, and configured to derive, based on data external to the operation of the gas turbine engines, a desired performance modification of the gas turbine engines;
• wherein either the power managers are further configured to determine or the fleet management computer system is further configured to determine, based on the measured control actuator settings, one or more trim signals for respectively varying selected of the control actuator settings to achieve the desired performance modification;
• and
• wherein the power managers are further configured to transmit the trim signals to respective electronic controllers of the engines to vary the selected control actuator settings accordingly.

A non-transitory computer program comprising code for optimizing the operation of a fleet of gas turbine engines, the code, when run on a computer, causing the computer to perform a method comprising the steps of:

• (a) receiving respective measured values for plural control actuator settings within each of the gas turbine engines;
• (b) deriving, based on data external to the operation of the gas turbine engines, a desired performance modification of the gas turbine engines;
• (c) determining, based on the measured control actuator settings, one or more trim signals for respectively varying selected of the control actuator settings to achieve the desired performance modification;
• and
• (d) transmitting the trim signals to respective electronic controllers of the engines to vary the selected control actuator settings accordingly.