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Long-term Optimization of Cogeneration Systems in a Competitive Market Environment
Mälardalen University, Department of Public Technology.ORCID iD: 0000-0002-3485-5440
University of Stuttgart, Germany.
University of Stuttgart, Germany.
2005 (English)In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 81, no 2, 152-169 p.Article in journal (Refereed) Published
Abstract [en]

A tool for long-term optimization of cogeneration systems is developed that is based on mixed integer linear programming and Lagrangian relaxation. We use a general approach without heuristics to solve the optimization problem of the unit commitment problem and load dispatch. The possibility to buy and sell electric power at a spot market is considered as well as the possibility to provide secondary reserve. The tool has been tested on a demonstration system based on an existing combined heat and power (CHP) system with extraction-condensing steam turbines, gas turbines, boilers for heat production and district heating networks. The key feature of the model for obtaining solutions within reasonable times is a suitable division of the whole optimization period into overlapping subperiods. Using Lagrangian relaxation the tool can be applied to large CHP systems. For the demonstration model almost optimal solutions were found.

Place, publisher, year, edition, pages
2005. Vol. 81, no 2, 152-169 p.
Keyword [en]
cogeneration, linear programming, optimization methods, planning, power generation, power generation dispatch, unit commitment
National Category
Energy Systems
Identifiers
URN: urn:nbn:se:mdh:diva-2663DOI: 10.1016/j.apenergy.2004.04.012ISI: 000228757300003Scopus ID: 2-s2.0-13944257302OAI: oai:DiVA.org:mdh-2663DiVA: diva2:115326
Available from: 2006-02-28 Created: 2006-02-28 Last updated: 2015-06-29Bibliographically approved

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