Publisher : The Korean Society of Propulsion Engineers
DOI : 10.6108/KSPE.2016.20.2.056
Title & Authors
Sensor Fault-tolerant Controller Design on Gas Turbine Engine using Multiple Engine Models Kim, Jung Hoe; Lee, Sang Jeong;
Robustness is essential for model based FDI (Fault Detection and Isolation) and it is inevitable to have modeling errors and sensor signal noises during the process of FDI. This study suggests an improved method by applying NARX (Nonlinear Auto Regressive eXogenous) model and Kalman estimator in order to cope with problems caused by linear model errors and sensor signal noises in the process of fault diagnoses. Fault decision is made by the probability of the trend of gradually accumulated errors applying Fuzzy logic, which are robust to instantaneous sensor signal noises. Reliability of fault diagnosis is verified under various fault simulations.
Fault Tolerance;Engine Controller;NARX;Fault Detection and Isolation;
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