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Two-layer optimal scheduling method for regional integrated energy system considering flexibility characteristics of CHP system

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  • Wu, Hongbin
  • Liu, Zhe
  • He, Ye
  • Ding, Ming
  • Xu, Bin
  • Zhang, Mingxing

Abstract

A regional integrated energy system (RIES) guarantees the fulfillment of a diversified load demand of users by coordinating all types of energy equipment and is a two-layer optimal scheduling method that takes into consideration the flexibility of the characteristics of the combined heat and power (CHP) system is proposed in this paper. First, the thermoelectric output characteristics of hydrogen fuel cell (HFC) and CHP units are analyzed to establish an energy equipment model that takes into consideration the variability of the operating conditions. Subsequently, a two-layer optimal scheduling model of the RIES is established, where the upper layer takes into consideration the operating costs, carbon emission penalties, and renewable energy consumption capacity to determine the strategy for allocating the energy flow, and the lower layer considers the energy efficiency as the optimization objective to determine the output modes of the HFC and CHP units. Finally, an adaptive closed-loop control strategy is used to avoid the continuous startup and shutdown of the CHP unit. The simulation results show that the proposed method can effectively reduce operating costs and carbon emissions, improve energy efficiency and renewable energy consumption, and promote the efficient utilization of integrated energy resources.

Suggested Citation

  • Wu, Hongbin & Liu, Zhe & He, Ye & Ding, Ming & Xu, Bin & Zhang, Mingxing, 2024. "Two-layer optimal scheduling method for regional integrated energy system considering flexibility characteristics of CHP system," Energy, Elsevier, vol. 308(C).
    • Handle: RePEc:eee:energy:v:308:y:2024:i:c:s0360544224027440
    DOI: 10.1016/j.energy.2024.132970
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    References listed on IDEAS

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