一种基于电-电混合全功率氢燃料电池汽车动力系统方案设计

An Electric Powertrain Design of Full-power Hydrogen Fuel Cell Vehicle Based on Electric-electric Hybrid

响应国家碳中和碳达峰目标要求,未来纯电动会向氢燃料电池汽车转型,用以解决纯电动汽车续航里程和安全性问题。目前国内全功率燃料电池技术发展不成熟,因此介绍一种基于电-电混合全功率氢燃料电池汽车动力系统方案设计方法,采用燃料电池为主,动力电池为辅的整车动力系统方案,设计了适用于电-电混合全功率燃料电池车型高压架构以及对应架构下能量管理策略,整个动力系统利用升压DCDC中集成的SiCIPM模块以及高压配电模块将燃料电堆输出进行升压后给驱动电机以及整车负载供电。同时详细讲述了该高压架构下各动力系统匹配计算方法,并通过仿真分析验证燃料电池车型匹配设计结果以及性能要求,验证电-电混合全功率燃料电池汽车动力系统设计方案和能量管理策略可靠性、合理性、准确性。

In order to response to the national goal of carbon neutralization and carbon peaking, the electric vehicles will be transformed into hydrogen fuel cell vehicles in the future to solve the mileage and safety problems of the electric vehicles. At present, the development of domestic full power fuel cell technology is not mature. A scheme design method of full power hydrogen fuel cell vehicle power system based on electric-electric hybrid was introduced, which using the whole vehicle powertrain system solution dominated by fuel cell and supplemented by power cell. The high voltage architecture for electric-electric hybrid full-power fuel cell vehicle and the corresponding energy management strategy were designed. The whole powertrain system used the SiC IPM module and high-voltage distribution module integrated in the boost DCDC to boost the output of the fuel stack and supply power to the drive motor and the vehicle load. At the same time, the matching calculation method of each powertrain system based on the high-voltage architecture was described in detail. Through simulation analysis, the matching design results and performance requirements of fuel cell vehicle were verified, and the reliability, rationality and accuracy of the powertrain system design solution and energy management strategy of electric-electric hybrid full power fuel cell vehicle were verified.