LAPSE:2020.0196
Published Article
LAPSE:2020.0196
A Hybrid Inverse Problem Approach to Model-Based Fault Diagnosis of a Distillation Column
February 12, 2020
Early-stage fault detection and diagnosis of distillation has been considered an essential technique in the chemical industry. In this paper, fault diagnosis of a distillation column is formulated as an inverse problem. The nonlinear least squares algorithm is used to evaluate fault parameters embedded in a nonlinear dynamic model of distillation once abnormal symptoms are detected. A partial least squares regression model is built based on fault parameter history to explicitly predict the development of fault parameters. With the stripper of Tennessee Eastman process as example, this novel approach is tested for step- and random-type faults and several factors affecting its efficiency are discussed. The application result shows that the hybrid inverse problem approach gives the correct change of fault parameter at a speed far faster than the base approach with only a nonlinear model.
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Keywords
Distillation, fault diagnosis, inverse problem, parameter estimation
Subject
Suggested Citation
Sun S, Cui Z, Zhang X, Tian W. A Hybrid Inverse Problem Approach to Model-Based Fault Diagnosis of a Distillation Column. (2020). LAPSE:2020.0196
Author Affiliations
Sun S: College of Marine Science and Biological Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
Cui Z: College of Chemical Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
Zhang X: Wanhua Chemical Rongwei Polyurethane CO., LTD, Yantai 264000, China
Tian W: College of Chemical Engineering, Qingdao University of Science & Technology, Qingdao 266042, China [ORCID]
Cui Z: College of Chemical Engineering, Qingdao University of Science & Technology, Qingdao 266042, China
Zhang X: Wanhua Chemical Rongwei Polyurethane CO., LTD, Yantai 264000, China
Tian W: College of Chemical Engineering, Qingdao University of Science & Technology, Qingdao 266042, China [ORCID]
Journal Name
Processes
Volume
8
Issue
1
Article Number
E55
Year
2020
Publication Date
2020-01-02
Published Version
ISSN
2227-9717
Version Comments
Original Submission
Other Meta
PII: pr8010055, Publication Type: Journal Article
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Published Article
LAPSE:2020.0196
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External Link
doi:10.3390/pr8010055
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Version History
[v1] (Original Submission)
Feb 12, 2020
Verified by curator on
Feb 12, 2020
This Version Number
v1
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https://psecommunity.org/LAPSE:2020.0196
Original Submitter
Calvin Tsay
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