Actuator and Component Fault Isolation in a Fluid Catalytic Cracking Unit
| Authors: | Alcorta-Garcia Efrain, Universidad Autonoma de Nuevo Leon, Mexico
de Leon-Canton Plinio, Universidad Autonoma de Nuevo Leon, Mexico
Sotomayor Oscar A. Z., University of Sao Paulo, Brazil
Odloak Darci, University of Sao Paulo, Brazil |
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| Topic: | 6.1 Chemical Process Control |
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| Session: | Advances in Process Control |
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| Keywords: | Linear model, observers, fault detection and isolation, chemical process |
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Abstract
This paper considers an observer-based approach for detection and isolation of actuator and component faults in a Fluid Catalytic Cracking (FCC) unit. Model based analytical redundancy is used on an augmented linearised model of the non-linear FCC unit to the isolation of faults. Some component faults are modelled and implemented in a software package to show the considered approach.The proposed design is tested using a non-linear simulation of the FCC unit model. The results show that the linear observer-based approach applied to an augmented state of the FCC to actuator and component fault detection and isolation can be used with success even if the non-linear behaviour of the FCC has some effect on the residuals
