质子交换膜燃料电池堆参数模型及实验验证

Parametric Modeling and Experimental Evaluation of a Proton Exchange Membrane Fuel Cell Stack

以质子交换膜燃料电池的机理模型和性能实验数据为基础,建立了5 kW质子交换膜燃料电池堆的参数模型。采用多元线性回归方法,由测量的不同条件下的电堆极化曲线,确定了模型中的参数置信水平为95%的置信区间。参数模型被用于燃料电池堆的性能模拟计算,结果表明该模型与实验数据吻合较好,可用于评价燃料电池运行参数对性能的影响,以及对燃料电池动力系统的优化设计。

A parametric model of a 5 kW PEMFC stack was established on the basis of mechanistic model of proton exchange membrane fuel cell（PEMFC） and experimental results.The polarization curves of the stack were measured under different conditions. The parameters in the model were determined by means of multiple linear regressions,and the confidence interval of 95% confidence level was given.This model was applied to simulate the performance of the PEMFC stack.The results showed agreements between the modeling results and the experimental data.This model could be used to investigate the influence of process variables and for forecast of fuel cells and stacks,and for design optimization of fuel cell power system.