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Real-time synchronization with expected distribution of synchronized index for on-line monitoring of uneven multiphase batch process

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Abstract
Because of the inconsistent batch duration, identifying the progress of an ongoing batch highly affects the performance of the on-line monitoring. In this paper, a real-time synchronization scheme is proposed based on relative proceeding rates, newly defined as the time difference between the trajectory of an ongoing batch and the nominal trajectory. As the relative proceeding rate indicates how early the point attains its desired value compared to the nominal trajectory, the synchronized index is obtained online by estimating the relative proceeding rate. Compared with the conventional methods that optimize the synchronized index with local constraints, the proposed method can estimate its distribution using the relative proceeding rate without applying local constraints. It can reduce synchronization errors and increase the accuracies of the state estimation and fault detection. The utility of the proposed method is verified via a case study of industrial penicillin production with a real-time unmeasurable variable. (c) 2021 Elsevier Ltd. All rights reserved.
Author(s)
배재한이종민이혜지정동휘
Issued Date
2021
Type
Article
Keyword
Case studiesFault detectionFermentationMultiphase batch processMultivariate statistical process controlOn-line monitoringOn-line synchronizationPenicillin fermentation
DOI
10.1016/j.compchemeng.2021.107490
URI
https://oak.ulsan.ac.kr/handle/2021.oak/8839
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_gale_infotracacademiconefile_A674777460&context=PC&vid=ULSAN&lang=ko_KR&search_scope=default_scope&adaptor=primo_central_multiple_fe&tab=default_tab&query=any,contains,Real-time%20synchronization%20with%20expected%20distribution%20of%20synchronized%20index%20for%20on-line%20monitoring%20of%20uneven%20multiphase%20batch%20process&offset=0&pcAvailability=true
Publisher
COMPUTERS CHEMICAL ENGINEERING
Location
영국
Language
영어
ISSN
0098-1354
Citation Volume
154
Citation Number
1
Citation Start Page
107490
Citation End Page
107490
Appears in Collections:
Engineering > Aerospace Engineering
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