Partitioning of turbomachine faults

摘要

An example method of partitioning turbomachine faults includes using a modeling computer to model a system, to establish a modeled gas path parameter, and to establish a modeled subsystem parameter. The method then determines a gas path condition representing a difference between an actual gas path parameter and the modeled gas path parameter. The method also determines a subsystem condition representing a difference between an actual subsystem parameter and the modeled subsystem parameter. The method diagnoses a sensor failure based on the gas path condition and the subsystem condition.

主权项

1. A method of partitioning turbomachine faults, comprising:
using a modeling computer to model a system and to establish a modeled gas path parameter and a modeled subsystem parameter; determining a gas path condition representing a difference between an actual gas path parameter and the modeled gas path parameter; determining a subsystem condition representing a difference between an actual subsystem parameter and the modeled subsystem parameter; diagnosing a sensor failure based on the gas path condition and the subsystem condition; adjusting the modeled subsystem parameter to match the actual subsystem parameter; determining a model-driven gas path parameter based on the modeled subsystem parameter; and diagnosing an actuator failure or a module performance change based on a comparison of the modeled gas path parameter and the model-driven gas path parameter.