A coordinated configuration scheme for hydrogen-electric energy storage based on transient response characteristics

Zhangxi Wu, Ye Li, Bin Li, Jiawei He, Hui Fan, Haiyang Wang, Xinhang Hu and Shouhang Zhang

Renewable Energy, 2025, vol. 241, issue C

Abstract: The DC off-grid photovoltaic (PV) hydrogen production system (DCO-PVHPS) is a significant trend for achieving efficient and clean conversion of electricity and hydrogen. Suitable energy storage in a DCO-PVHPS can ensure the safe and continuous operation of electrolyzers. The current ES configurations mainly focus on suppressing fluctuations in renewable energy sources according to long-term operation characteristics. However, when a sudden power change, such as a DC fault, occurs, the impact of the transient response characteristics of hydrogen-electric energy storage systems on the power supply reliability should be considered. Therefore, the transient responses of proton exchange membrane electrolyzers (PEMELs), proton exchange membrane fuel cells (PEMFCs), and Li-ion batteries under different operating conditions are analyzed. A novel coordinated hydrogen-electric energy storage configuration scheme, which accounts for the transient response characteristics and safe operation boundary of PEMELs, is proposed in this paper. Finally, the simulation model of DCO-PVHPS is built to verify the effectiveness and superiority of the proposed configuration scheme. This scheme can not only ensure fault ride-through for the DCO-PVHPS but also improve system efficiency and service life. Besides, it reduces the dependence on Li-ion batteries, thus lowering system costs.

Keywords: DCO-PVHPS; Transient response characteristics; Hydrogen-electric energy storage configuration; Fault ride-through capability (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:241:y:2025:i:c:s0960148125000485

DOI: 10.1016/j.renene.2025.122386

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