Observer-based estimation of modulus of elasticity for papermaking process

Real-time estimation of the modulus of elasticity (E) in paper machines would enable it to be controlled, improving final product quality and reducing the occurrence of sheet breaks. This paper develops a novel topology to estimate E on web machines based on an adaptive observer structure that combi...

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Bibliographic Details
Main Authors: Ramirez A, Guillermo, Lorenz, Robert D., Valenzuela, M. Anibal
Format: Conference Proceeding
Language:English
Subjects:
adaptive observer
Drives
Force
Force measurement
modulus of elasticity
paper machine
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Summary:Real-time estimation of the modulus of elasticity (E) in paper machines would enable it to be controlled, improving final product quality and reducing the occurrence of sheet breaks. This paper develops a novel topology to estimate E on web machines based on an adaptive observer structure that combines model reference adaptive control (MRAC) with a closed loop observer using field signals such as tension force, velocity/position and torque. The evaluation of the proposed topology is performed on the dryer-calender span of the dry-end section of a (LWC) paper machine. Results show a fast and accurate estimation of E, confirming the robustness of the adaptive observer structure.
ISSN:0190-2172
DOI:10.1109/PPIC.2013.6656053