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A multi-rate hybrid model for real-time iterative bidding coupled with power system dynamics

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  • Wu, Chenyu
  • Gu, Wei
  • Yi, Zhongkai
  • Chen, Xi
  • Shi, Zhengkun
  • Luo, Enbo

Abstract

To maintain the system's real-time balance, mature electricity markets generally tend to raise the frequency of market clearing. Given the shrinking time lag between the price update process and underlying electromechanical dynamics, it inevitably considers the two in a unified, dynamical framework. However, the relationship between market activities and the evolution of electricity networks has received scant attention in pertinent research. Inspired by the primal-dual gradient method and modern control theory, we propose a novel multi-rate hybrid model that simultaneously accounts for the continuous nature of physical system dynamics and the discrete nature of market clearing. To maintain the asymptotical convergence of the proposed model, we derive the explicit constraints on the upper bounds of market clearing and bidding intervals. These bounds can be determined without prior knowledge of the Nash equilibrium, and even the time schedules don't have to be periodic, which dramatically improves the applicability of the proposed model in practical market operation. The whole model provides a new perspective to study economic-physical problems, which can be readily implemented in a distributed way and achieve social welfare maximization along with frequency regulation.

Suggested Citation

  • Wu, Chenyu & Gu, Wei & Yi, Zhongkai & Chen, Xi & Shi, Zhengkun & Luo, Enbo, 2023. "A multi-rate hybrid model for real-time iterative bidding coupled with power system dynamics," Applied Energy, Elsevier, vol. 337(C).
  • Handle: RePEc:eee:appene:v:337:y:2023:i:c:s0306261923002283
    DOI: 10.1016/j.apenergy.2023.120864
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    References listed on IDEAS

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    1. Hong, Qiuyi & Meng, Fanlin & Liu, Jian & Bo, Rui, 2023. "A bilevel game-theoretic decision-making framework for strategic retailers in both local and wholesale electricity markets," Applied Energy, Elsevier, vol. 330(PA).
    2. McPherson, Madeleine & Mehos, Mark & Denholm, Paul, 2020. "Leveraging concentrating solar power plant dispatchability: A review of the impacts of global market structures and policy," Energy Policy, Elsevier, vol. 139(C).
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