TY  - JOUR
AU  - Cheng, Siliang
AU  - Xu, Liangfei
AU  - Wu, Kai
AU  - Fang, Chuan
AU  - Hu, Junming
AU  - Li, Jianqiu
AU  - Ouyang, Minggao
TI  - Optimal warm-up control strategy of the PEMFC system on a city bus aimed at improving efficiency
JO  - International journal of hydrogen energy
VL  - 42
IS  - 16
SN  - 0360-3199
CY  - New York, NY [u.a.]
PB  - Elsevier
M1  - FZJ-2017-07416
SP  - 11632 - 11643
PY  - 2017
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000403381400089
DO  - DOI:10.1016/j.ijhydene.2017.02.203
UR  - https://juser.fz-juelich.de/record/838910
ER  -