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Distributionally robust chance-constrained energy management for island DC microgrid with offshore wind power hydrogen production

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  • Shen, Yi
  • Zhai, Junyi
  • Kang, Zhongjian
  • Zhao, Bei
  • Gao, Xianhui
  • Li, Zhengmao

Abstract

Islands possess abundant renewable energy resources with significant potential for development. Meanwhile, the off-grid DC electro-hydrogen coupled systems is a promising way for the development of marine economy. This paper presents a distributionally robust chance-constrained (DRCC) energy management model for island DC electro-hydrogen microgrid considering the offshore wind power hydrogen production. Firstly, a comprehensive hydrogen-related model incorporating the dynamic hydrogen production, storage, and utilization is proposed, where the nonlinear hydrogen production efficiency of electrolyzer is considered. Then, a data-driven DRCC energy management model for island DC electro-hydrogen microgrid is developed, where the metric-based ambiguity set is leveraged to capture the uncertainty of offshore wind power. Besides, the conditional value-at-risk (CVaR) approximation is tailored to reformulate the resulting metric-based DRCC model into a tractable form. Numerical results on an off-grid DC electro-hydrogen coupled systems illustrate the effectiveness of the proposed approach.

Suggested Citation

  • Shen, Yi & Zhai, Junyi & Kang, Zhongjian & Zhao, Bei & Gao, Xianhui & Li, Zhengmao, 2025. "Distributionally robust chance-constrained energy management for island DC microgrid with offshore wind power hydrogen production," Energy, Elsevier, vol. 316(C).
    • Handle: RePEc:eee:energy:v:316:y:2025:i:c:s0360544225002129
    DOI: 10.1016/j.energy.2025.134570
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