Incipient Fault Diagnosis of Tennessee Eastman Flowsheet using Signed Directed Graph and Trend Analysis
نویسندگان
چکیده
In this article we propose a combined signed directed graph (SDG) and qualitative trend analysis (QTA) framework for incipient fault diagnosis. The SDG is the rst level in our framework and provides a possible candidate set of faults based on the incipient response of the process. The search for the actual fault is performed based on a QTA, which uses the temporal evolution of the sensors for further resolution. It is shown that this framework provides fast, reliable and accurate incipient fault diagnosis.
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