质子交换膜燃料电池系统低温起动仿真

Simulation of cold start of PEM fuel cell system

当前燃料电池汽车受到越来越多的关注,而燃料电池汽车商业化还有很多问题亟需解决,其中燃料电池系统低温起动是一个重点难题。使用AMESim软件建立了一个燃料电池一维系统模型,针对影响燃料电池系统低温起动性能的各个因素进行了研究。仿真结果显示,较低的起动电压有利于低温起动过程,温度越低低温起动越困难,反应气体的温度对低温起动过程影响不大。

Increasing attention is paid to fuel cell vehicles,but there are many problems to be solved before the commercialization of fuel cell vehicles,and the cold start process of the fuel cell systems is of great difficulty among all the problems.A one-dimensional model of fuel cell system was developed by using AMESim,and the influence factors of cold start process of fuel cell system were studied.The results show that the lower voltage is beneficial to cold start; the lower temperature of fuel cell will enlarge the difficulty of cold start; the temperature of reaction gas doesn＇t have much effect on the cold start process.