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Multi-time scale operation optimization for a near-zero energy community energy system combined with electricity-heat-hydrogen storage

Author

Listed:
  • Liu, Zhijian
  • Fan, Guangyao
  • Meng, Xiangrui
  • Hu, Yubin
  • Wu, Di
  • Jin, Guangya
  • Li, Guiqiang

Abstract

Hybrid energy storage offers a new way to increase the renewable energy proportion (REP) of near-zero energy community energy system (NZECES). However, the optimization operation method of NZECES combining hybrid energy storage is not yet mature. Therefore, this paper proposes integrating electricity storage, heat storage and hydrogen storage into the NZECES, and conducting multi-time scale (MTS) operation optimization research. Firstly, a NZECES with electricity-heat-hydrogen storage is constructed. Secondly, a MTS optimization operation model of day-ahead scheduling, intra-day rolling, and real-time adjustment is established. Among them, the hourly scheduling scheme targeting the lowest daily operating cost is obtained through the optimization of the day-ahead stage. In the intra-day stage, the scheduling scheme with a time interval of 15 min is obtained by the rolling optimization. The operation scheme of electrical-related equipment with the minimum adjustment cost is obtained in the real-time stage. Finally, a NZEC with different building types is used as the energy supply object. The results show that compared to the traditional day-ahead scheduling scheme, the REP is increased by 3.6 % and the operation cost of the energy system is reduced by 5.3 % by using the MTS operation optimization method.

Suggested Citation

  • Liu, Zhijian & Fan, Guangyao & Meng, Xiangrui & Hu, Yubin & Wu, Di & Jin, Guangya & Li, Guiqiang, 2024. "Multi-time scale operation optimization for a near-zero energy community energy system combined with electricity-heat-hydrogen storage," Energy, Elsevier, vol. 291(C).
    • Handle: RePEc:eee:energy:v:291:y:2024:i:c:s0360544224001683
    DOI: 10.1016/j.energy.2024.130397
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