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A Benefit Analysis of Model Predictive Machine Directional Control of Paper Machines


April 1, 2010
By Pulp & Paper Canada

Une analyse des avantages du contrle directionnel des machines papiers par modle de prvision

Une analyse des avantages du contrle directionnel des machines papiers par modle de prvision

Abstract: Increasing costs for energy and raw materials combined with a downward pressure on paper prices from global over capacity results in an ever increasing pressure on paper manufacturers to further improve operational efficiencies. While classic multivariable machine direction (MD) control has served the industry well in this regard since the late 60s, its capabilities are stretched to the limits by today’s advanced processes and stringent quality requirements. This paper provides a detailed comparison between classic multivariable MD control and model predictive MD control with a focus on improvement of paper machine operational efficiency. The paper draws on experiences commissioning model predictive control (MPC) based MD controls in the Americas.

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Paper presented at the 2008 Control Systems Pan-Pacific Conference in British Columbia, June 16-18, 2008.

Keywords: OPERATIONAL EFFICIENCY, MULTIVARIfi ABLE CONTROL, MACHINE DIRECTION CONTROL, MODEL PREDICTIVE CONTROL, ECONOMIC OPTIfi MIZATION.

Full manuscript available at www.paptac.ca.


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