An energy management strategy based on dynamic power factor for fuel cell/battery hybrid locomotive
An energy management strategy based on dynamic power factor for fuel cell/battery hybrid locomotive
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DOI：
10.1016/j.ijhydene.2017.12.117
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发表时间：
2018-02
影响因子：
7.2
通讯作者：
Hong Zhihu;Qi Li;Ying Han;Shang Weilin;Zhu Yanan;Wei-rong Chen
中科院分区：
文献类型：
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作者：
Hong Zhihu;Qi Li;Ying Han;Shang Weilin;Zhu Yanan;Wei-rong Chen
为了有效吸收更多的再生制动能量，维持比传统车辆更长的时间，并保证混合动力系统在机车实际行驶循环下的安全性，针对由质子交换膜燃料电池（PEMFC）和电池组组成的小型化机车系统，提出了一种基于动态因子策略的能量管理控制。所提出的策略对不同的驾驶循环具有自适应功能，旨在实现混合动力系统的更少的氢消耗和更高的效率。实验结果表明，该策略能够比等效消耗最小化策略（ECMS）更好地保持电池的荷电状态（SOC），并且该策略能够保持SOC的变化趋势，无论电池的初始SOC如何，最终的SOC都接近目标值。此外，通过该策略，在实际行驶循环下，氢气消耗量减少了0.86g，整个系统的效率比ECMS提高了至少2%。因此，所提出的策略可以通过减少燃料电池输出能量的转换过程来提高系统效率。
In order to efficiently absorb more regenerative braking energy which sustains much longer compared with the conventional vehicle, and guarantee the safety of the hybrid system under the actual driving cycle of locomotive, an energy management control based on dynamic factor strategy is proposed for a scale-down locomotive system which consists of proton exchange membrane fuel cell (PEMFC) and battery pack. The proposed strategy which has self-adaption function for different driving cycles aims to achieve the less consumption of hydrogen and higher efficiency of the hybrid system. The experimental results demonstrate that the proposed strategy is able to maintain the charge state of battery (SOC) better than Equivalent Consumption Minimization Strategy (ECMS), and the proposed strategy could keep the change trend of SOC, which the final SOC is closed to the target value regardless of the initial SOC of battery. Moreover, the hydrogen consumption has been reduced by 0.86g and the efficiency of overall system has been raised of 2% at least than ECMS under the actual driving cycle through the proposed strategy. Therefore, the proposed strategy could improve the efficiency of system by diminishing the conversion process of energy outputted by fuel cell.