摘要
DC/DC变换器在纯电动汽车复合储能系统中起着关键的作用,传统的DC/DC变换器已无法满足要求,采用碳化硅(SiC)的新型变换器具有损耗小,开关速度快等优势,能够很好地弥补传统硅变换器的缺陷。以新型SiC双向DC/DC变换器为研究对象,针对碳化硅双向DC/DC变换器在纯电动汽车中的应用提出一种功率控制和负载变工况相结合的复合控制方法,并在搭建好的实验环境中验证其可靠性,实验结果表明,采用的复合控制方法能够很好的实现碳化硅DC/DC变换器在纯电动汽车中的可靠稳定的应用。
DC/DC converter plays a key role in the pure electric vehicle control system.The traditional DC/DC converter can not meet the technical requirements.The new converter with silicon carbide(SiC)has low loss and fast switching speed.Other advantages can make up for the shortcomings of traditional silicon converters.In this paper,a new SiC bidirectional DC/DC converter is taken as the research object.A composite control method combining PWM switch control and load variable operation is proposed for the application of SiC bidirectional DC/DC converter in pure electric vehicle.The reliability is verified in the established experimental environment.The experimental results show that the composite control method can achieve the reliable and stable application of silicon carbide DC/DC converter in pure electric vehicles.
作者
林希
高红英
Lin Xi;Gao Hongying(School of Mechanical Engineering,Shanxi Institute of Industrial Technology,Xianyang 712000,China)
出处
《国外电子测量技术》
2019年第7期76-80,共5页
Foreign Electronic Measurement Technology
基金
咸阳市2018科学技术研究计划项目(2018k02-18)资助
