操作条件扰动在PEMFC性能优化中的应用  

Application of operating perturbation in optimization of PEMFC performance

作　　者：刘志祥[1,2,3] 何丽 LIU Zhi-xiang;HE Li(School of Electrical Engineering,Southwest Jiaotong University,Chengdu Sichuan 610031,China;Foshan University,Foshan Guangdong 528000,China;Foshan(Yunfu)Research Institute for Hydrogen Energy Industry and New Material Development,Foshan Guangdong 528000,China)

机构地区：[1]西南交通大学电气工程学院,四川成都610031 [2]佛山科学技术学院,广东佛山528000 [3]佛山(云浮)氢能产业与新材料发展研究院,广东佛山528000

出　　处：《电源技术》2019年第1期110-112,共3页Chinese Journal of Power Sources

基　　金：国家自然科学基金资助项目(51677157)

摘　　要：以质子交换膜燃料电池(PEMFC)单电池为研究对象,研究了电流短路、电流扰动以及空气流量扰动这三个操作条件扰动对PEMFC单电池的极化曲线和功率曲线的影响。研究结果表明,电流短路能够有效提高PEMFC的输出性能,尤其是在大电流情况下,输出电压最高可提高62.96%,输出功率最高可提高30.36%;电流向上扰动和空气流量向下扰动在大电流下均可以提高PEMFC的输出性能,在小电流下对PEMFC的性能影响不明显。The single cell of the proton exchange membrane fuel cell was studied.The influence of three operating conditions,including current short circuit,current disturbance and air flow disturbance,on the polarization curve and power curve of PEMFC single cell was studied respectively.The results show that the output performance of PEMFC is effectively improved by the current short circuit,especially in the case of high current,the maximum output voltage can be increased by 62.96%,and the output power can be increased by 30.36%.The output performance of PEMFC can be improved by the upward disturbance of current and the downward disturbance of air flow under high current,but the performance of PEMFC is not obvious at low current.

关 键 词：PEMFC 电流短路 电流扰动 空气流量扰动 极化曲线 功率曲线 

分 类 号：TM911.4[电气工程—电力电子与电力传动]