摘要
针对某种型号的大功率电动汽车设计了一款能够实现软开关的多相交错的双向大功率DC/DC装置的主电路拓扑。设计中为了减小装置的体积以及提高装置的效率,使用了非隔离型的双向DC/DC主电路拓扑。为了减小主电路的输入输出电流纹波以及提高主电路拓扑的可靠性,使用了多个非隔离型的双向DC/DC主电路拓扑相并联。通过控制多相交错型拓扑结构中主功率开关管的导通和断开的时序实现了软开关技术,这样不仅降低了功率开关器件的功率损耗而且还减少了主电路本身对其它电路的干扰。最后,使用Matlab/Simulink仿真软件对所设计的主电路拓扑进行了仿真,验证了基于软开关的主电路拓扑的正确性。
A soft switching power multi-phase interleaved bidirectional DC / EC main circuit topology device was designed for a certain types of high-power electric vehicle in this paper. In order to reduce the device size and improve the device efficiency, multiple non-isolation Bidirectional DC/DC main circuit topology was used. In order to reduce the input and output current ripple of the main circuit and improve the reliability of main circuit topology, a plurality of bi-directional DC-type non isolated DC/DC main circuit topology were connected in parallel. We controlled the turned on and off in sequence of the main power switch of mult-phase interleaved topology to achieve a soft-switching technology, which not only reduces power loss of power switching devices and but also reduces the interference of main circuit itself to other circuits. Finally, Matlab/Simulink simulation was used to verify the correctness of the design.
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2014年第12期137-141,共5页
Journal of Wuhan University of Technology
基金
国家自然科学基金(51207117)
