A novel strong duality-based reformulation for trilevel infrastructure models in energy systems development

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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en

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16

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Journal of the Operational Research Society, Volume 76, issue 3, pp. 438-453

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We explore the class of trilevel equilibrium problems with a focus on energy-environmental applications and present a novel single-level reformulation for such problems, based on strong duality. To the best of our knowledge, only one alternative single-level reformulation for trilevel problems exists. This reformulation uses a representation of the bottom-level solution set, whereas we propose a reformulation based on strong duality. Our novel reformulation is compared to this existing formulation, discussing both model sizes and computational performance. In particular, we apply this trilevel framework to a power market model, exploring the possibilities of an international policymaker in reducing emissions of the system. Using the proposed approach, we are able to obtain globally optimal solutions for a five-node case study representing the Nordic countries and assess the impact of a carbon tax on the electricity production portfolio.

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Publisher Copyright: © 2024 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.

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Herrala, O, Gabriel, S A, Oliveira, F & Ekholm, T 2025, 'A novel strong duality-based reformulation for trilevel infrastructure models in energy systems development', Journal of the Operational Research Society, vol. 76, no. 3, pp. 438-453. https://doi.org/10.1080/01605682.2024.2365807