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

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

Energy, 2025, vol. 316, issue C

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.

Keywords: Green hydrogen; Offshore wind power; Island DC microgrid; Distributionally robust chance-constrained (DRCC); Conditional value-at-risk (CVaR) approximation (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:316:y:2025:i:c:s0360544225002129

DOI: 10.1016/j.energy.2025.134570

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