Long-term optimization of cogeneration systems in a competitive market environment
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 sub-periods. Using Lagrangian relaxation, the tool can be applied to large CHP systems. For the demonstration model, almost optimal solutions were found.
Year of publication: |
2005
|
---|---|
Authors: | Thorin, Eva ; Brand, Heike ; Weber, Christoph |
Published in: |
Applied Energy. - Elsevier, ISSN 0306-2619. - Vol. 81.2005, 2, p. 152-169
|
Publisher: |
Elsevier |
Keywords: | Cogeneration Linear programming Optimization methods Planning Power generation Power generation dispatch Unit commitment |
Saved in:
Online Resource
Saved in favorites
Similar items by person
-
WILMAR: a stochastic programming tool to analyze the large-scale integration of wind energy
Weber, Christoph, (2009)
-
Barth, Rudiger, (2006)
-
The impact of lignocellulosic ethanol yields in polygeneration with district heating – A case study
Starfelt, Fredrik, (2012)
- More ...