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A global component-level operation optimization method for distributed energy systems with solid oxide fuel cell

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  • Hao, Xiuxia
  • Chen, Keqi
  • Gang, Wenjie
  • Tu, Zhengkai

Abstract

Distributed energy system integrated with solid oxide fuel cell (DES&SOFC) can be an efficient alternative to hydrogen utilization in buildings. Energy storage systems can help improve the system's reliability and efficiency. Appropriate control plays an important role in improving the performance of DES&SOFCs. In this study, a global component-level operation optimization method is proposed for the DES&SOFC with energy storage by decoupling the integration of the thermal and electrical energy systems. The optimal operation of primary components (i.e. states, loads, temperature, fan speed, power change/discharge, etc.) is obtained considering the low-carbon interaction with the grid. The method is verified in a DES&SOFC system serving an office building. Results demonstrate that the proposed method can effectively improve the energy efficiency of the DES&SOFC system and 9.4% less electricity is consumed to meet the thermal demands compared with the traditional method. The flexibility of the DES&SOFC system is enhanced which can always respond to the grid with lower emissions. The total carbon dioxide emissions can be reduced by 19.7% and 29.9% on the two typical days. This study would provide very practical and effective technical support to promote the application of SOFC and hydrogen in commercial buildings and communities.

Suggested Citation

  • Hao, Xiuxia & Chen, Keqi & Gang, Wenjie & Tu, Zhengkai, 2026. "A global component-level operation optimization method for distributed energy systems with solid oxide fuel cell," Renewable Energy, Elsevier, vol. 262(C).
    • Handle: RePEc:eee:renene:v:262:y:2026:i:c:s0960148126002168
    DOI: 10.1016/j.renene.2026.125391
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    References listed on IDEAS

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