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Volume 16
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10.3390/en16145370
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Article

A Space Reduction Heuristic for Thermal Unit Commitment Considering Ramp Constraints and Large-Scale Generation Systems

by
Layon Mescolin de Oliveira
1,
Ivo Chaves da Silva Junior
1 and
Ramon Abritta
2,*
1
Laboratory of Power Systems, Department of Electrical Energy, Federal University of Juiz de Fora, José Lourenço Kelmer St., São Pedro, Juiz de Fora 36036-900, Brazil
2
Department of Geoscience and Petroleum, Norwegian University of Science and Technology, PTS Paviljong, 540, Valgrinda, S.P. Andersens veg 15, 7031 Trondheim, Norway
*
Author to whom correspondence should be addressed.
Energies 2023, 16(14), 5370; https://doi.org/10.3390/en16145370
Submission received: 25 May 2023 / Revised: 28 June 2023 / Accepted: 1 July 2023 / Published: 14 July 2023
(This article belongs to the Section J: Thermal Management)
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Abstract

This paper expands the research around a recently proposed method to reduce the search space region for thermal unit commitment problems. The importance of such techniques comes from the combinatorial explosion regarding the variables of the problem when there are a large quantity of generating units in the system. The proposed heuristic approach utilizes sensitivity indices to gather information about the system and fix many of the binary decision variables over the planning horizon. This work further explores the method by demonstrating its effectiveness in large-scale systems subjected to ramp constraints. Despite the significantly increased complexity, the results of this paper indicate that the method can achieve high quality solutions notably faster than other approaches from the literature.
Keywords: thermal unit commitment; combinatorial optimization; search space reduction; heuristic thermal unit commitment; combinatorial optimization; search space reduction; heuristic

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MDPI and ACS Style

de Oliveira, L.M.; da Silva Junior, I.C.; Abritta, R. A Space Reduction Heuristic for Thermal Unit Commitment Considering Ramp Constraints and Large-Scale Generation Systems. Energies 2023, 16, 5370. https://doi.org/10.3390/en16145370

AMA Style

de Oliveira LM, da Silva Junior IC, Abritta R. A Space Reduction Heuristic for Thermal Unit Commitment Considering Ramp Constraints and Large-Scale Generation Systems. Energies. 2023; 16(14):5370. https://doi.org/10.3390/en16145370

Chicago/Turabian Style

de Oliveira, Layon Mescolin, Ivo Chaves da Silva Junior, and Ramon Abritta. 2023. "A Space Reduction Heuristic for Thermal Unit Commitment Considering Ramp Constraints and Large-Scale Generation Systems" Energies 16, no. 14: 5370. https://doi.org/10.3390/en16145370

APA Style

de Oliveira, L. M., da Silva Junior, I. C., & Abritta, R. (2023). A Space Reduction Heuristic for Thermal Unit Commitment Considering Ramp Constraints and Large-Scale Generation Systems. Energies, 16(14), 5370. https://doi.org/10.3390/en16145370

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