【摘要】 该文从电化学、热力学、流体动力学和电学的角度出发，构建质子交换膜（PEM）电解槽动态机理模型，表述PEM电解槽的非线性、动态特性和内部多物理过程的耦合。在此基础上，提出将纹波电流拆分为直流分量与交流分量的方法，旨在更加真实的反映电流纹波对制氢效率影响，建立PEM电解槽与电力电子电路结合的半实物仿真平台，对不同幅值与频率的纹波电流输入进行测试，半实物仿真结果与实验数据吻合，验证模型的准确性，为研究高效制氢电源变换器拓扑结果及其控制策略提供理论依据与验证平台。更多还原

【Abstract】 This paper constructs a dynamic mechanism model of the proton exchange membrance(PEM) electrolyzer from the perspectives of electrochemistry, thermodynamics, fluid dynamics, and electricity, describing the nonlinearity, dynamic characteristics, and coupling of internal multi-physical processes of PEM electrolyzer. Based on this, a method is proposed to split the ripple current into DC and AC components, aiming to more accurately reflect the impact of current ripple on hydrogen production efficiency. A hardware-in-the-loop simulation platform combining PEM electrolyzer and power electronic circuits is established, and ripple currents with different amplitudes and frequencies are tested. The hardware-in-the-loop simulation results are consistent with experimental data, verifying the accuracy of the model. This provides a theoretical basis and verification platform for studying the topology and control strategy of high-efficiency hydrogen production power converters.更多还原