Process for adapting measurement suite configuration for gas turbine performance diagnostics
First Claim
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1. 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.
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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.
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Citations
24 Claims
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1. A method for adapting measurements from a gas turbine engine for use in performance tracking comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for adapting measurements from a gas turbine engine for use in performance tracking comprising:
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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. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification