The study on the power management system in a fuel cell hybrid vehicle
The study on the power management system in a fuel cell hybrid vehicle
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DOI：
10.1016/j.ijhydene.2011.11.127
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发表时间：
2012-03
影响因子：
7.2
通讯作者：
Jenn-Jiang Hwang;Yu-jie Chen;J. Kuo
中科院分区：
文献类型：
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作者：
Jenn-Jiang Hwang;Yu-jie Chen;J. Kuo
建立了一种基于质子交换膜燃料电池（PEMFC）和锂离子蓄电池的混合动力汽车模型，并对其动力学和整车性能进行了分析。来自燃料电池的电源电压在与锂离子电池集成之前由DC/DC转换器调节，锂离子电池为驱动电机提供能量。驱动车轮的驱动力来自永磁同步电动机（PMSM）;动力通过变速器、轴和差速器传递。在MATLAB/Simulink中建立了PEMFC、锂离子电池、永磁同步电机和整车结构的数学模型。系统中集成了电源管理模型，使得功率输出在不同条件下变化;包括高功率、低功率、标准功率和充电模式。通过改变加速器的转速，观察了双电源输出功率、氢气消耗量和锂离子电池荷电状态之间的关系。针对ECE 40驾驶循环对电源管理模型进行了验证。对燃料电池混合动力汽车的性能进行了评价。在车辆的操作模式显示出与建议的电源管理系统的密切配合。此外，测量混合比以评估总体效率。结果表明，杂交率与效率的相关性很小。然而，燃料电池的功率越高，氢消耗越高。
This paper presents a model of a hybrid electric vehicle, based on a primary proton exchange membrane fuel cell (PEMFC) and an auxiliary Li-ion battery, and its dynamics and overall performance. The power voltage from the fuel cell is regulated by a DC/DC converter before integrating with the Li-ion battery, which provides energy to the drive motor. The driving force for propelling the wheels comes from a permanent magnet synchronous motor (PMSM); where the power passes through the transmission, shaft, and the differential. The mathematical model, comprising the PEMFC, Li-ion battery, PMSM, and vehicular structure, was modeled in MATLAB/Simulink. A power management model was incorporated in the system such that the power output varies in different conditions; including high power, low power, standard power, and charge modes. By changing the speed of the accelerator, the relation between the output of dual power supply, hydrogen consumption, and Li-ion battery’s state of charge was observed. The power management model is validated against the ECE40 driving cycle. The performance of the fuel cell hybrid vehicle is evaluated. The operation modes in the vehicle show a close match with the proposed power management system. Additionally, the hybrid ratio is measured to evaluate the overall efficiency. The results indicate that the hybrid ratio shows little correlation with efficiency. However, the higher the power of the fuel cell, the higher the hydrogen consumption.