| 引用本文: | 胡致远,程浩然,夏杨红,韦巍.碱液电解槽建模与宽范围运行控制[J].电力自动化设备,2024,44(11):17-23. |
| HU Zhiyuan,CHENG Haoran,XIA Yanghong,WEI Wei.Modeling and wide range operation control of alkaline water electrolyzer[J].Electric Power Automation Equipment,2024,44(11):17-23. |
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| 摘要: |
| 在碱液电解制氢中，碱液电解槽(AWE)的低载性能差，难以宽范围跟踪波动性可再生能源出力。基于工业AWE的内部结构和工作原理，建立了一种新的工业AWE等效电路模型，揭示了AWE低载低效率的内在机理，并提出了一种多模态自寻优(MMSO)控制策略及其原理样机。在低载时施加低频脉冲电流以提高制氢效率，从而实现工业AWE的宽范围运行。基于10 kW的AWE实验平台，验证了所提模型的正确性以及所提MMSO控制策略对AWE在低载范围内效率的提升具有显著的效果。 |
| 关键词: 制氢 碱液电解槽 变流器 宽范围运行 效率提升 |
| DOI：10.16081/j.epae.202408021 |
| 分类号: |
| 基金项目:国家电网有限公司总部科技项目(5108-202218280A-2-439-XG) |
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| Modeling and wide range operation control of alkaline water electrolyzer |
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HU Zhiyuan, CHENG Haoran, XIA Yanghong, WEI Wei
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College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
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| Abstract: |
| In alkaline water electrolysis hydrogen production, the alkaline water electrolyzer(AWE) has poor low-load performance, and it is difficult to track fluctuating renewable energy output in a wide range. Based on the internal structure and working principle of industrial AWE, a new equivalent circuit model of industrial AWE is established, the internal mechanism of AWE’s low efficiency at low-load is revealed, and a multi-mode self-optimization(MMSO) control strategy and its principle prototype are proposed. Low frequency pulse current is applied at low load to improve hydrogen production efficiency, thus achieving wide range operation of industrial AWE. Based on the 10 kW AWE experiment platform, the correctness of the proposed model is verified and the proposed MMSO control strategy is verified to have a significant effect on the efficiency improvement of AWE in the low load range. |
| Key words: hydrogen production alkaline water electrolyzers electric converters wide range operation efficiency enhancement |
