动力电池纹波电流限制的Matlab仿真分析

Ripple current limit analysis of power battery based on matlab

混合动力动车组相比内燃动力动车组具有牵引功率大、加速快、有能量回收能力、绿色环保的特点。以某混合动力动车组牵引系统为研究对象,通过搭建Matlab/Simulink仿真模型分析混合动力动车组牵引系统中,动力电池输出电流纹波过大问题。给出了两种关于动力电池输出电流纹波过大的改善措施,同时验证了牵引系统参数的正确性,为工程项目改进设计提供了仿真结果支持,也给后续的系统优化提供了仿真平台和参考。

Compared with diesel powered EMUs,hybrid powered EMUs have the advantages like bigger traction power,higher acceleration,energy recuperation and environmentally friendly.In this paper,the traction system of a hybrid powered train is studied.The excessive output current ripple of the power battery is analyzed by building a Matlab/Simulink simulation model of the hybrid powered train traction system.Two measures to decreasing the output current ripple of the power battery are given,and the correctness of the traction system parameters are verified at the same time,which provides simulation results support for the improvement design of the engineering project,and also provides a simulation platform for the subsequent system optimization and reference.