%0 Journal Article
%A Cheng, Siliang
%A Xu, Liangfei
%A Wu, Kai
%A Fang, Chuan
%A Hu, Junming
%A Li, Jianqiu
%A Ouyang, Minggao
%T Optimal warm-up control strategy of the PEMFC system on a city bus aimed at improving efficiency
%J International journal of hydrogen energy
%V 42
%N 16
%@ 0360-3199
%C New York, NY [u.a.]
%I Elsevier
%M FZJ-2017-07416
%P 11632 - 11643
%D 2017
%X Proton exchange membrane fuel cells (PEMFC) are considered an ideal solution for zero-emission vehicles. This study focuses on the warm-up strategy of the PEMFC system in an energy-type power train, which is widely used on city buses. Firstly, a system model was built and validated by experimental data. Based on the model, a dynamic programming (DP) algorithm was utilized to determine a warm-up method that optimizes global efficiency. Then, a rule-based analysis was carried out and a three-step strategy based on the DP algorithm was proposed in order to satisfy the demand of real-time control. Simulation results show that the efficiency optimization of the three-step strategy is very close to that of the dynamic programming algorithm. In addition, the effects of warm-up time and environment temperature on efficiency are discussed. Results show that a longer warm-up time and a higher environment temperature are helpful for improving efficiency.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000403381400089
%R 10.1016/j.ijhydene.2017.02.203
%U https://juser.fz-juelich.de/record/838910