Modeling and Simulation of Fuel Cell Buses

2021 IEEE 16th Conference on Industrial Electronics and Applications (ICIEA) Pub Date : 2021-08-01 DOI:10.1109/ICIEA51954.2021.9516371

Zhongwei Yu, Xingmei Gao, Xiandong Xie, Lingyun Xiao, Xiaohua Wu

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Abstract

Fuel cell buses are powered by lithium batteries and fuel cells, according to the characteristics of the transmission structure and power source of a particular fuel cell bus, the mathematical models of the longitudinal dynamics, driver, demand torque, motor, fuel cell, and battery have been analyzed and established based on Matlab/Simulink. At the same time, a power-following real-time energy management strategy has been designed. After three sets of China heavy-duty commercial vehicle test cycles for buses and coaches were verified in a combined simulation, the results showed that the model of fuel cell bus better reflects the working characteristics, and the power distribution strategy can keep the fuel cell operating within a high efficiency range as much as possible. The battery provides energy when there is insufficient power, absorbs excess power from the fuel cell, and simultaneously recovers the energy lost from braking. The charging state is also maintained within a certain range. In addition, the hydrogen consumption has a negative correlation with the initial charging state.

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燃料电池客车建模与仿真

燃料电池客车采用锂电池和燃料电池作为动力，根据某型燃料电池客车传动结构和动力源的特点，基于Matlab/Simulink对其纵向动力学、驱动器、需求力矩、电机、燃料电池和电池等进行了分析和建立数学模型。同时，设计了一种电力跟踪实时能源管理策略。通过三组中国重型商用车客车和客车试验循环的联合仿真验证，结果表明，燃料电池客车模型较好地反映了燃料电池客车的工作特性，动力分配策略可以使燃料电池在尽可能高的效率范围内工作。电池在动力不足时提供能量，从燃料电池中吸收多余的能量，同时回收制动时损失的能量。充电状态也保持在一定范围内。此外，氢气消耗量与初始充电状态呈负相关。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2021 IEEE 16th Conference on Industrial Electronics and Applications (ICIEA)

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