Patent ID: 8849542
Filing Date: 2014-09-30
Classification: F02C,F05D

Abstract:
1. A method for model-based control of a gas turbine engine, the method comprising: generating an operating point of the gas turbine engine from measured parameters using a component-level model comprised of a plurality of components; analytically linearizing the component-level model by taking the first partial derivative of input parameters of each component with respect to output parameters of each component, and evaluating the result at the operating point; combining components of the linearized component-level model to form a combined perturbational model of the gas turbine engine; reducing an order of the combined perturbational model by eliminating internal variables; inverting the combined perturbational model to solve for control commands as a function of target parameters and the measured parameters; applying the target parameters and the measured parameters to the combined perturbational model to generate control commands; and controlling, by a processor an actuator of the gas turbine engine according to the control commands.