Research on hydrogen fuel cell backup power for metal hydride hydrogen storage system

IF 3.1 Q1 Mathematics

Applied Mathematics and Nonlinear Sciences Pub Date : 2024-01-01 DOI:10.2478/amns-2024-0027

Hang Zhang, Jun Pan, Jinyong Lei, Keying Feng, Tianbao Ma

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Abstract

Hydrogen fuel cells are characterized by non-pollution, high efficiency and long power supply time, and they are increasingly used as backup power systems in substations, communication base stations and other fields. In this paper, based on the thermodynamic model of the hydride hydrogen storage system, the relationship between pressure, composition, and temperature in metal hydride hydrogen storage is quantitatively analyzed using a PCT curve. The hydrogen fuel power supply is used as the overall backup power supply of the DC system, and the hydrogen-fuel integrated backup power supply is established to realize the uninterrupted switching between the utility power and the backup power supply. Finally, the working process of the backup power supply and the reaction process of hydrogen are analyzed to test the feasibility of a hydrogen fuel cell backup power supply. The results show that the operating current climbs to the end of 80 A under the 5 kW workload demand of the communication equipment. In addition, the hydrogen absorption reaction rate was 0.29 Mpa, and the hydrogen release reaction rate was 0.21 Mpa at a temperature of 291 K. This study has developed a fuel cell backup power system that can provide uninterruptible backup power and has a wide market capacity and application prospects.

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金属氢化物储氢系统的氢燃料电池备用电源研究

氢燃料电池具有无污染、效率高、供电时间长等特点，越来越多地被用作变电站、通信基站等领域的备用电源系统。本文基于氢化物储氢系统的热力学模型，利用 PCT 曲线定量分析了金属氢化物储氢系统中压力、成分和温度之间的关系。将氢燃料电源作为直流系统的整体备用电源，建立氢燃料一体化备用电源，实现市电与备用电源的不间断切换。最后，分析了备用电源的工作过程和氢气的反应过程，检验了氢燃料电池备用电源的可行性。结果表明，在通信设备 5 kW 的工作负荷需求下，工作电流攀升至 80 A。此外，在温度为 291 K 时，氢气吸收反应速率为 0.29 Mpa，氢气释放反应速率为 0.21 Mpa。该研究开发了一种燃料电池备用电源系统，可提供不间断备用电源，具有广阔的市场容量和应用前景。

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来源期刊

Applied Mathematics and Nonlinear Sciences Engineering-Engineering (miscellaneous)

CiteScore

2.90

自引率

25.80%

发文量

203