【作者】 李丞； 朱仲文； 胡广地； 王旭； 郑字琛；

【Author】 Li Cheng;Zhu Zhongwen;Hu Guangdi;Wang Xu;Zheng Zichen;Southwest Jiaotong University;China Automotive Technology & Research Center Co.,Ltd.;

【机构】 西南交通大学； 中国汽车技术研究中心有限公司；

【摘要】 质子交换膜燃料电池(PEMFC)的性能和寿命不仅与电堆本身有关,而且受到外部附件控制效果的直接影响,其中空气供给系统作为重要的辅助系统之一,直接决定着参与反应的氧气是否足量且适宜,因此空气系统各项参数对整个燃料电池系统的运行状态有着不可忽视的影响。燃料电池系统涉及电化学、材料学、电气学等多个学科领域,为了获得较准确的仿真模型,本文采用AMESim仿真软件对燃料电池系统模型进行搭建,其中包括电堆模型、空气系统子模型、氢气系统子模型以及热管理系统子模型。为了分析空气系统动态特性的影响因素以及对燃料电池极化特性的影响,本文基于该AMESim模型对空气系统进行仿真研究,采用控制变量法分别对环境参数、进气温度、进气湿度、空压机转速以及被压阀开度等影响因素进行研究分析。通过对仿真实验结果的分析给出了空气系统物理参数的变化特性以及提高燃料电池性能的有效措施。更多还原

【Abstract】 The performance and life of Pem Fuel Cell(PEMFC) are not only related to the stack itself,but also directly affected by the control effect of external components.As one of the important auxiliary systems,the air supply system directly determines whether the oxygen involved in the reaction is sufficient and appropriate.Therefore,the parameters of the air system have a significant influence on the running state of the whole fuel cell system.Fuel cell system involves electrochemistiy,material science,electrical science and other fields.In order to obtain a more accurate simulation model,this paper uses AMESim simulation software to build the fuel cell system model,including the stack model,air system sub-model,hydrogen system sub-model and thermal management system sub-model.In order to analyze the influence factors of the dynamic characteristics of air system and the polarization characteristics of fuel cell,this paper conducted a simulation study on the air system based on the AMESim model.The influence factors such as environmental parameters,air inlet temperature,air inlet humidity,air compressor speed and pressure valve opening were studied and analyzed by using the control variable method.Through the analysis of the simulation results,this paper gives the variation characteristics of the physical parameters of the air system and the effective measures to improve the performance of the fuel cell.更多还原