中国电机工程学报2026，Vol.46Issue(5)：1980-1993,中插20,15.DOI:10.13334/j.0258-8013.pcsee.241916
基于多物理场建模的质子交换膜电解槽暂态机理研究
Transient Mechanism of Proton Exchange Membrane Water Electrolysis Based on Multi-physics Modeling
摘要
Abstract
The rapid dynamic changes of proton exchange membrane water electrolysis(PEMWE)under instantaneous power fluctuations involve the interaction of multiple physical fields,and its transient mechanism is still unclear,which hinders transient control modeling and grid-connection safety and stability analysis.A multi-physics field model considering the transient thermal non-equilibrium characteristics of porous media is proposed to study the second-level thermoelectric coupling dynamic behavior of PEMWE and reveal its transient mechanism under instantaneous power fluctuations.First,considering the risk of thermal runaway caused by local hot spots under PEMWE transient conditions,based on the analysis of its working principle and structural characteristics,a scientific conjecture and a model are proposed,which suggest that the inherent thermal non-equilibrium characteristics of porous media dominate its second-level transient process.Furthermore,considering the local thermal non-equilibrium of porous media,a three-dimensional multi-physics field model of the minimum electrolysis unit is established to simulate its thermoelectric dynamic behavior under instantaneous power fluctuations.Finally,numerical simulation is used to study the influence of battery voltage,inlet flow rate,inlet temperature,and interphase heat transfer coefficient on the transient process of the two-phase temperature distribution in porous media in PEMWE under variable power conditions.It is proved that the second-level dynamic behavior of PEMWE under instantaneous power fluctuations is a thermoelectric coupling process dominated by thermal non-equilibrium heat transfer of membrane electrode,revealing the thermoelectric transient mechanism of PEMWE.关键词
质子交换膜电解槽/热非平衡/暂态机理/热电耦合/瞬时功率波动Key words
proton exchange membrane water electrolysis/thermal non-equilibrium/transient mechanism/thermoelectric coupling/instantaneous power fluctuations分类
信息技术与安全科学引用本文复制引用
袁铁江,谭捷,闫华光..基于多物理场建模的质子交换膜电解槽暂态机理研究[J].中国电机工程学报,2026,46(5):1980-1993,中插20,15.基金项目
国家电网有限公司科技项目(5400-202328240A-1-1-ZN).Science and Technology Project of State Grid Corporation of China(5400-202328240A-1-1-ZN). （5400-202328240A-1-1-ZN）
