燃料电池车氢气SOC计算及应用  

Hydrogen SOC calculation of fuel cell vehicles and its applicaiton

作　　者：李亚超[1] 何雍[1] 马洪涛[1] 吴兵[1] 王鸿鹄[1] 

机构地区：[1]上海汽车集团股份有限公司前瞻技术研究部,上海201804

出　　处：《电源技术》2015年第8期1675-1677,共3页Chinese Journal of Power Sources

摘　　要：在氢燃料电池汽车中,氢瓶中氢气的剩余量(state of charge,SOC)不仅直接决定了燃料电池车的续驶里程,而且是燃料电池与蓄电池进行动力输出分配以及氢管理的重要依据。实际气体状态方程下的压缩系数直接影响实际氢气密度的计算并最终影响氢SOC值的精确度,提出的对6阶的维里方程进行简化后计算出的压缩系数可保证氢密度的精度高达0.01%。利用实验验证了压缩系数计算以及氢气密度方程的精确性,并用实际采集数据验证了氢SOC计算的可行性。In the fuel cell vehicles, SOC not only determines the fuel cell vehicle ddving range, but also is an important parameter of the power distribution among the fuel cell and battery as well as dynamic hydrogen management. The compression factor of the real gas state equation directly affects the calculation of the real hydrogen density and it also affects the accuracy of hydrogen SOC. The compression factor calculated by simplified 6-order virial equation can ensure the accuracy of the hydrogen density up to 0.01%. The results indicate the calculation of the compression factor and accuracy of hydrogen density, and the collection data verifies the feasibility of the hydrogen SOC calculation.

关 键 词：燃料电池 SOC 实际气体 压缩系数 密度方程 

分 类 号：TM911[电气工程—电力电子与电力传动]