燃料电池混合动力列车建模与仿真研究

Based on the fuel cell electrical train by our research group, redesigning its original power system into a fuel cell/battery hybrid energy system. According to the momentum indicators of the trains ,we designed the main parameters, such as motor power, battery power, fuel cell power, final drive ratio, gear ratios and the types of the main components. In addition, using power control strategy as the control mode of fuel cell hybrid drive system, we also finished calculation and control of power distribution between fuel cell and battery under the typical operating conditions. Besides, based on the MATLAB/SIMULINK software platform, we built power management subsystem model and the whole vehicle model, including a fuel cell controller, battery charging and discharging model, DC/DC converter. After simulation parameters are set, simulation results are analyzed. The results show that: the selection of major components is reasonable, all the subsystems and the whole vehicle model are correct, the fuel cell and battery power allocation is logical.