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- W2891837480 abstract "For large-scale industrial processes under closed-loop control, process dynamics directly resulting from control action are typical characteristics and may show different behaviors between real faults and normal changes of operating conditions. However, conventional distributed monitoring approaches do not consider the closed-loop control mechanism and only explore static characteristics, which thus are incapable of distinguishing between real process faults and nominal changes of operating conditions, leading to unnecessary alarms. In this regard, this Article proposes a distributed monitoring method for closed-loop industrial processes by concurrently exploring static and dynamic characteristics. First, the large-scale closed-loop process is decomposed into several subsystems by developing a sparse slow feature analysis (SSFA) algorithm, which captures changes of both static and dynamic information. Second, distributed models are developed to separately capture static and dynamic characteristics from the local and global aspects. On the basis of the distributed monitoring system, a two-level monitoring strategy is proposed to check different influences on process characteristics resulting from changes of the operating conditions and control action, and thus the two changes can be well distinguished from each other. Case studies are conducted on the basis of both benchmark data and real industrial process data to illustrate the effectiveness of the proposed method." @default.
- W2891837480 created "2018-09-27" @default.
- W2891837480 creator A5011060290 @default.
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- W2891837480 date "2018-10-28" @default.
- W2891837480 modified "2023-10-11" @default.
- W2891837480 title "Distributed Dynamic Modeling and Monitoring for Large-Scale Industrial Processes under Closed-Loop Control" @default.
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- W2891837480 doi "https://doi.org/10.1021/acs.iecr.8b02683" @default.
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