Energy optimization in the process industries : unit commitment at systems level

E. Zondervan, I.E. Grossmann, A.B. Haan, de

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

10 Citations (Scopus)
3 Downloads (Pure)


In previous work, the unit commitment problem has been formulated as a non-convex MINLP, which is computationally expensive to solve. To circumvent this problem, we reformulate in this paper the problem as a convex MIQCP and derive the relevant constraints using propositional logic. We consider a specific problem based on a network of gas and oil fired power generators. Numerical results are presented using several methods (e.g. CPLEX for MIQCP, and DICOPT, SBB for MINLP). It is shown that proposed convex MIQCP reformulation can be solved much faster than previous non-convex models reported in the literature.
Original languageEnglish
Title of host publicationProceedings of the 20th European Symposium on Computer Aided Process Engineering (Escape-20), 6-9 june 2010, Ischia, Naples, Italy
EditorsS. Pierucci, G. Buzzi Ferraris
Place of PublicationAmsterdam
ISBN (Print)978-0-444-53569-6
Publication statusPublished - 2010

Publication series

NameComputer Aided Chemical Engineering
ISSN (Print)1570-7946

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