A modified unit decommitment algorithm in combined heat and power production planning

Aiying Rong*, Risto Lahdelma

*Corresponding author for this work

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

Abstract

This paper addresses the unit commitment in multi-period combined heat and power (CHP) production planning, considering the possibility to trade power on the spot market. We present a modified unit decommitment algorithm (MUD) that starts with a good feasible initial solution generated by a heuristic procedure. The heuristic procedure utilizes both the Lagrangian relaxation principle to relax the system-wide (heat and power) demand constraints and a linear relaxation of the ON/OFF states of the plants. Numerical results with realistic power plants show that on the average MUD is somewhat more accurate (0.3-0.5%) than a generic unit decommitment algorithm and significantly more efficient (1.1-3 times faster) for different planning horizons.

Original languageEnglish
Title of host publicationMIC '07 Proceedings of the 26th IASTED International Conference on Modelling, Identification, and Control
PublisherACTA Press
Pages30-35
Number of pages6
ISBN (Print)978-0-88986-620-1
Publication statusPublished - 2007
MoE publication typeA4 Article in a conference publication
EventIASTED International Conference on Modelling, Identification and Control - Innsbruck, Austria
Duration: 12 Feb 200714 Feb 2007
Conference number: 26

Conference

ConferenceIASTED International Conference on Modelling, Identification and Control
Abbreviated titleMIC
CountryAustria
CityInnsbruck
Period12/02/200714/02/2007

Keywords

  • Combined heat and power production
  • Deregulated power market
  • Energy optimization
  • Modelling
  • Modified unit decommitment
  • Unit commitment

Fingerprint Dive into the research topics of 'A modified unit decommitment algorithm in combined heat and power production planning'. Together they form a unique fingerprint.

  • Cite this

    Rong, A., & Lahdelma, R. (2007). A modified unit decommitment algorithm in combined heat and power production planning. In MIC '07 Proceedings of the 26th IASTED International Conference on Modelling, Identification, and Control (pp. 30-35). ACTA Press.