Modeling And Simulation Of Hydrogen Fuel Cell-Battery Hybrid Locomotive

With the continuous progress of modern society,consumption of fossil energy for human being is increasing.As a key technology for China to cope with global climate change,ensure the security of national energy fund supply and achieve sustainable economic development,hydrogen energy technology is the best choice for China to achieve large-scale decarburization in various fields such as transportation,industry and construction.In this paper,by the utilization of the modeling and performance simulation of hydrogen fuel cell-battery hybrid locomotive,the energy management strategy of the hybrid system under different working conditions is explored to optimize the performance of the system.The main work of this paper is as follows:1.Based on the MATLAB/SIMULINK simulation platform,the hydrogen fuel cell-battery hybrid power system model is established which includes fuel cell module,battery module,asynchronous motor control module and other sub-modules.And the working characteristics of each component are analyzed.2.The power distribution of hydrogen fuel cell-battery in different driving conditions of hybrid locomotive is analyzed by the simulation model of hydrogen fuel cell-battery hybrid locomotive.3.The energy management strategy of hydrogen locomotive model is proposed,and simulation research is carried out for high,medium and low SOC modes respectively.The simulation results show that the hierarchical energy management strategy proposed in this paper has high application value and can gradually control the SOC to reach a reasonable range.It has obvious performance advantages in improving dynamic load.