氢燃料电池汽车动力系统设计及性能仿真

Design and Performance Simulation of Hydrogen Fuel Cell Vehicle Power System

针对燃油车与氢燃料电池汽车的燃油经济性和动力性,源于某型号汽油车的整车结构参数和动力性能指标,设计了一套适用于氢燃料电池汽车的动力系统,给出动力系统控制策略方案,完成总体布置和整体结构的设计,在对相关部件进行选型计算的基础上,确定氢燃料电池汽车动力系统设计参数。在MATLAB/Advisor平台上搭建氢燃料电池模型、驱动电机模型、动力蓄电池模型及整车模型,采用中国城市工况对所设计的氢燃料电池汽车动力系统性能进行仿真测试,并与原汽油车进行对比分析。结果表明,设计的氢燃料电池汽车的动力性能完全符合实际工况要求;燃油经济性、加速性能和爬坡性能都得到较大提升,燃油经济性提高了17.5%,加速时间提高了11.7%,最大爬坡度提高了1.3%。

Aiming at the fuel economy and power performance of fuel vehicle and hydrogen fuel cell vehicle, a set of power system suitable for hydrogen fuel cell vehicle is designed based on the structural parameters and power performance indexes of a certain type of gasoline vehicle, and the power system control strategy is given to complete the overall layout and overall structure design.The design parameters of the power system of hydrogen fuel cell vehicle are determined based on the selection calculation of related components. A hydrogen fuel cell model, a driving motor model, a power battery model and a vehicle model were built on the MATLAB/Advisor platform. The performance of the designed hydrogen fuel cell vehicle’s power system was simulated by using Chinese urban conditions, and compared with the original gasoline vehicle. The results show that, the dynamic performance of the designed hydrogen fuel cell vehicle is fully in line with the requirements of actual working conditions. Fuel economy, acceleration performance and climbing performance have been greatly improved, fuel economy increased by 17.5%, acceleration time increased by 11.7%,maximum climbing slope increased by 1.3%.