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Plantwide control
Control structure design for complete chemical plants
Sigurd Skogestad
Department of Chemical EngineeringNorwegian University of Science and Tecnology (NTNU)Trondheim, Norway
ThailandAugust 2005
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Trondheim, Norway
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Trondheim
Oslo
UK
NORWAY
DENMARK
GERMANY
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NTNU,TrondheimProcess Control professors:– Bjarne Foss– Morten Hovd – Jens Balchen – Heinz Preisig– Sigurd Skogestad
EE
ChE
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Sigurd Skogestad
• Born in 1955• 1978: Siv.ing. Degree (MS) in Chemical Engineering from NTNU (NTH)• 1980-83: Process modeling group at the Norsk Hydro Research Center in
Porsgrunn• 1983-87: Ph.D. student in Chemical Engineering at Caltech, Pasadena, USA.
Thesis on “Robust distillation control”. Supervisor: Manfred Morari• 1987 - : Professor in Chemical Engineering at NTNU• Since 1994: Head of process systems engineering center in Trondheim
(PROST)• Since 1999: Head of Department of Chemical Engineering• 1996, 2005: Book “Multivariable feedback control” (Wiley)• 2000, 2003: Book “Prosessteknikk” (Tapir)• Group of about 10 Ph.D. students
in the process control area
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Research: Develop simple yet rigorous methods to solve
problems of engineering significance.
• Use of feedback as a tool to
1. reduce uncertainty (including robust control),
2. change the system dynamics (including stabilization; anti-slug control),
3. generally make the system more well-behaved (including self-optimizing control).
• limitations on performance in linear systems (“controllability”),
• control structure design and plantwide control,
• interactions between process design and control,
• distillation column design, control and dynamics.
• Natural gas processes