Fault Propagation Inference Based on a Graph Neural Network for Steam Turbine Systems
Yi-Jing Zhang () and
Li-Sheng Hu ()
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Yi-Jing Zhang: Department of Automation, Shanghai Jiao Tong University, Shanghai 200240, China
Li-Sheng Hu: Department of Automation, Shanghai Jiao Tong University, Shanghai 200240, China
Energies, 2021, vol. 14, issue 2, 1-13
A fault propagates along physical paths until it reaches the boundary of the equipment or system, which shows as a functional failure. Hence, inferring the fault propagation helps to ensure the normal operation of the industrial system. To infer the fault propagation in the steam turbine system, a graph model is developed. Firstly, a process graph topology is constructed according to the system mechanism, whose nodes and edges represent the equipment and mutual relationships. Meanwhile, a fault graph topology is built, in which nodes indicate potential faults and edges are inferred propagation paths. Then, the representations of fault nodes are realized through a graph neural network. Lastly, link prediction methods based on nodes’ representations are conducted, along with the paths inference results. Consequently, the accuracy of fault propagation inference for the steam turbine system is over 86%.
Keywords: fault propagation inference; steam turbine system; graph neural network; link prediction (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
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Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:14:y:2021:i:2:p:309-:d:476747
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