LAPSE:2019.1191
Published Article
LAPSE:2019.1191
An Approach for Feedforward Model Predictive Control of Continuous Pulp Digesters
Moksadur Rahman, Anders Avelin, Konstantinos Kyprianidis
November 24, 2019
Kappa number variability at the continuous digester outlet is a major concern for pulp and paper mills. It is evident that the aforementioned variability is strongly linked to the feedstock wood properties, particularly lignin content. Online measurement of lignin content utilizing near-infrared spectroscopy at the inlet of the digester is paving the way for tighter control of the blow-line Kappa number. In this paper, an innovative approach of feedforwarding the lignin content to a model predictive controller was investigated with the help of modeling and simulation studies. For this purpose, a physics-based modeling library for continuous pulp digesters was developed and validated. Finally, model predictive control approaches with and without feedforwarding the lignin measurement were evaluated against current industrial control and proportional-integral-derivative (PID) schemes.
Keywords
feedforward, Kappa number, Modelling, predictive control, pulp and paper, pulp digester
Suggested Citation
Rahman M, Avelin A, Kyprianidis K. An Approach for Feedforward Model Predictive Control of Continuous Pulp Digesters. (2019). LAPSE:2019.1191
Author Affiliations
Rahman M: School of Business, Society and Engineering, Mälardalen University, Box 883, 72123 Västerås, Sweden
Avelin A: School of Business, Society and Engineering, Mälardalen University, Box 883, 72123 Västerås, Sweden [ORCID]
Kyprianidis K: School of Business, Society and Engineering, Mälardalen University, Box 883, 72123 Västerås, Sweden
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Journal Name
Processes
Volume
7
Issue
9
Article Number
E602
Year
2019
Publication Date
2019-09-06
Published Version
ISSN
2227-9717
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Original Submission
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PII: pr7090602, Publication Type: Journal Article
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LAPSE:2019.1191
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doi:10.3390/pr7090602
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Nov 24, 2019
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CC BY 4.0
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[v1] (Original Submission)
Nov 24, 2019
 
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Nov 24, 2019
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Original Submitter
Calvin Tsay
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