NDLI: Robust estimation of Base Sheet Ash during a Wet End Break, scanner warm up and initialization

Content Provider	IEEE Xplore Digital Library
Author	Nobakhti, A. Hong Wang
Copyright Year	2009
Description	Author affiliation: Control Systems Centre, School of Electrical and Electronics Engineering, The University of Manchester, M60 1QD, UK (Hong Wang) \|\| Sappi Fine Paper Europe, Blackburn Mill, Feniscowles, B2 5HX, Control Systems Centre, The University of Manchester, UK (Nobakhti, A.)
Abstract	During a Wet End break, the loss of paper feed through the paper machine causes the two main scanners to go offline and the remaining parts of the process are operated in open-loop. This causes the stock composition in the Headbox to deviate substantially from the nominal specifications, causing paper quality (after start up) and paper machine runability issues. In this work, the Base Sheet Ash measurement of the scanner is estimated using a Least Absolute Value (LAV) model which can then be used for control of the chalk valve during the breaks to keep the Headbox Ash within specified limits. The model is developed around key Wet End variables which have been identified using PCA and sensitivity analysis. Modeling is performed on plantwide data obtained from actual running of a paper machine in the UK.
Starting Page	2210
Ending Page	2215
File Size	2539083
Page Count	6
File Format	PDF
ISBN	9781424445233
ISSN	07431619
DOI	10.1109/ACC.2009.5160227
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-06-10
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	American Automatic Control Council(AACC)
Subject Keyword	Robustness Ash Paper making machines Paper making Control systems Feeds Chemicals Robust control Europe Milling machines
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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