PEMFC电堆动态模型建立及试验验证  

Dynamic model establishment and experimental verification of PEMFC system stack

作　　者：张磊[1,2] 徐元利 王仁广[2] 孟祥飞[1] ZHANG Lei;XU Yuanli;WANG Renguang;MENG Xiangfei(Tianjin University of Science and Technology,Tianjin 300000,China;China Automotive Technology&Research Center Co.,Ltd.,Tianjin 300000,China)

机构地区：[1]天津科技大学,天津300000 [2]中国汽车技术研究中心有限公司,天津300000

出　　处：《现代电子技术》2021年第19期140-143,共4页Modern Electronics Technique

基　　金：中国汽车技术研究中心指南课题:氢燃料电池发动机测评技术研究(19223402);天津大学内燃机燃烧学国家重点实验室开放基金:opoc发动机对置撞击雾化特性研究(k2016-6);天津市科技特派员项目:opoc发动机对置撞击雾化形态研究(16JCTPJC48700);中国汽车技术研究中心指南课题:氢燃料电池发动机测评技术研究(19223402)。

摘　　要：基于质子交换膜燃料电池(PEMFC)热管理系统,为了分析PEMFC系统的温度特性以及输出特性,首先对国内外燃料电池模型建立的研究现状进行调研,其次根据电堆运行机理及经验建立系统数学动态模型,其中包括电堆模型和热模型,该模型涉及到电化学、电传导、热传导和流体力学等多种物理知识。通过32 kW燃料电池系统台架试验,对动态模型进行验证,对比试验结果与仿真结果表明,系统误差小于5%,在允许误差范围内。设置PEMFC在不同温度下运行,观察温度对电堆功率和电压的影响,结果表明负载电流越大,温度对电堆功率和电压的输出影响越明显。On the basis of the thermal management system of the proton exchange membrane fuel cell(PEMFC),the paper aims at the two steps in order to probe and further analyze the temperature characteristics and output characteristics of the PEMFC system.The research status for the establishment of fuel cell models at home and abroad is researched.A mathematical dynamic model of the system is established based on the operating mechanism and former research of the stack,including stack models and thermal models,which involves physical knowledge,such as electrochemistry,electrical conductivity,thermal conductivity and fluidity.The dynamic model was verified by the bench test of 32 kW fuel cell system.The contrast between the test result and the simulation result shows that the system error is less than 5%,which is within the allowable error range.Setting the PEMFC to operate at different temperatures and observing the effect of temperature on the power supply and voltage of the stack.The observable results show that the greater the load current,the more obvious the effect of temperature on the power and voltage output of the stack.

关 键 词：PEMFC 热管理 温度特性 输出特性 动态模型 电化学 电传导 热传导 流体力学 

分 类 号：TN98-34[电子电信—信息与通信工程] TN606