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Krister Forsman, Perstorp

Practical and theoretical aspects of plant wide control for chemical plants

We discuss some methods available for addressing various issues in plant-wide control, and exemplify them with concrete examples from chemical plants. Central concepts discussed are throughput manipulator selection, degrees of freedom and variable pairing, as well as analysis and selection of control structures. In connection with this we also address the question about control specifications, and the compromise between high level automation and ease of use.

Some concrete examples presented are flow split control, reactor control and inventory controls.

Presentation slides

 

Biography

Krister Forsman has more than 20 years of practical experience from automatic control, industrial IT and Manufacturing Execution Systems in process industry, primarily the chemical and pulp and paper industries. He received his PhD in mathematical control theory in 1991, from Linköping University, Sweden. After ten years in various positions within the ABB group, he ran his own consulting company for a few years. In 2005 he joined the Perstorp group as a Corporate Specialist. Krister has worked with around 60 different plants in some 20 countries. He has authored some 50 articles and conference papers in process control and related areas, and a textbook in practical process control. Since 2012 he is also an adjunct professor at the Department of Chemical Engineering at the Norwegian University of Science and Technology. His main research interests are control structures for industrial applications and plantwide control.

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