用于电动汽车的磁集成结构DC/DC变换器  

Integrated magnetics structure DC/DC converter for electric vehicles

作　　者：夏向阳[1] 孔祥霁[1] 唐欣[1] 彭梦妮[1] 冉成科[1,2] 李明德 汤赐[1] 刘代飞[1] 徐元璨 

机构地区：[1]长沙理工大学电气与信息工程学院,湖南长沙410077 [2]湖南机电职业技术学院汽车工程系,湖南长沙410151 [3]衡阳产商品质量监督检验所,湖南衡阳421001

出　　处：《中南大学学报（自然科学版）》2017年第3期694-700,共7页Journal of Central South University:Science and Technology

基　　金：国家自然科学基金资助项目(51577014);海南省社会发展科技专项(2015SF37);衡阳市科技计划重点项目(2015KG27)~~

摘　　要：基于传统储能设备的功率密度以及转换效率低,在很大程度限制了电动汽车的操控性和续航性能,提出一种磁集成结构的DC/DC变换器应用于电动汽车的混合储能系统。研究结果表明:加入二阶贝塞尔低通滤波器,配合磁集成结构本身的滤波性能,结合混合储能系统的优越性可以显著提高电动汽车的工作效率和稳定性;磁集成技术可以减小变换器整体体积和降低变换器磁芯损耗。蓄电池与超级电容构成的混合储能系统具有高容量储能、快速响应、回收制动能量的特点;该混合储能系统能够优化电能质量,提高电动汽车的续航时间和加速时所需能量,在传统的驾驶周期内具有良好的性能。Considering that traditional energy storage device of power density and low conversion efficiency greatly limit the electric vehicle handling and performance, a novel DC/DC converter was proposed based on the integrated magnetic structure for hybrid energy storage system in electric vehicles. The results of MATLAB simulation show that adding the second-order Bessel low-pass filter with the filtering performance of the magnetic integrated structure itself, at the same time combining with the advantages of hybrid energy storage system, the efficiency and stability of electric vehicles can be significantly improved. Integrated Magnetic structure can reduce the overall size of converter and decrease the core losses of converter. The hybrid energy storage system composed of storage battery and super capacitor has the characteristics of high capacity energy storage, quick response and recovery of braking energy. The hybrid energy storage system can optimize the power quality, improve the endurance time and acceleration needs of electric vehicles, and has good performance in a typical driving cycle.

关 键 词：DC/DC变换器 磁集成结构 电动汽车 混合储能系统 电能质量 

分 类 号：TM46[电气工程—电器]