Process for adapting measurement suite configuration for gas turbine performance diagnostics
AssigneeUnited Technologies Corporation
InventorAllan J. Volponi
Life of this patent
Estimating the term…
Abstract
A method and system is described that estimates gas turbine engine module performance changes from gas path measurement data using a linear predictor-corrector estimation process. A measurement configuration matrix MC and a fault configuration FC matrix are assembled. The configuration matrices MC and FC are used to adapt a typical linear predictor-corrector type of performance estimation process to a given measurement suite and are ideally suited for linear estimation systems such as those using a Kalman filter.
Claims24
A method for adapting measurements from a gas turbine engine for use in performance tracking comprising:
- selecting a default engine configuration for the gas turbine engine and its application;
- acquiring gas path data samples corresponding to a predetermined number of measured parameters;
- deriving performance parameters for the gas turbine engine;
- comparing the measured parameters and performance parameters at time k with predefined thresholds to determine the quality and/or availability of each parameter, wherein parameters determined to be questionable are defined as not present for performance tracking;
- determining a measurement configuration matrix MC based on the default engine configuration and present measured parameters Z, and a fault configuration matrix FC based on the default engine configuration and present performance parameters x0;
- and
- adapting performance tracking methods using the measurement configuration matrix MC and fault configuration matrix FC.
A system for adapting measurements from a gas turbine engine for use in performance tracking comprising:
- means for selecting a default engine configuration for the gas turbine engine and its application;
- means for acquiring gas path data samples corresponding to a predetermined number of measured parameters;
- means for deriving performance parameters for the gas turbine engine;
- means for comparing the measured parameters and performance parameters at time k with predefined thresholds to determine the quality and/or availability of each parameter, wherein parameters determined to be questionable are defined as not present for performance tracking;
- means for determining a measurement configuration matrix MC based on the default engine configuration and present measured parameters Z, and a fault configuration matrix FC based on the default engine configuration and present performance parameters x;
- and
- means for adapting performance tracking methods using the measurement configuration matrix MC and fault configuration matrix FC.
Dependencies are inferred from the claim text.