一种交错并联双向DC-DC变换器的新型磁集成技术  

A Novel Magnetic Integration Technology for Interleaved Parallel Bidirectional DC-DC Converters

作　　者：高圣伟[1] 王博[1] 孙醒涛[1] GAO Shengwei;WANG Bo;SUN Xingtao(Tianjin Key Laboratory of Electrical Equipment Intelligent Control(Tiangong University),Xiqing District,Tianjin 300387,China)

机构地区：[1]天津市电气装备智能控制重点实验室(天津工业大学),天津市西青区300387

出　　处：《中国电机工程学报》2023年第9期3538-3549,共12页Proceedings of the CSEE

基　　金：天津市科技计划项目(20YDTPJC01520)。

摘　　要：为了提高交错并联双向DC-DC变换器的功率密度,降低高频工作下的磁心损耗,提高变换器的整体效率,该文提出一种新型磁集成电感结构,采用分段绕组优化设计,通过计算磁心气隙以及各磁柱绕线匝数等参数,将两个分立的电感集成在一个EE型磁心上。使磁元件体积和重量分别减小了48.2%和46.7%。与现有的交错并联磁集成方案相比,该方法能有效降低磁心的饱和度,使磁心上的磁通分布更加均匀,减小电感磁心损耗,提高系统效率。最后,通过有限元仿真和实验样机验证该设计的正确性和有效性.In order to increase the power density of the interleaved parallel bidirectional DC-DC converter,reduce the core loss under high-frequency operation,and improve the overall efficiency of the converter,this paper proposes a new type of magnetic integrated inductor structure that uses segmented windings to optimize the design,in which two discrete inductors are integrated on an EE-type magnetic core by calculating the magnetic core air gap and the number of turns of each magnetic column.This method reduces the volume and weight of the magnetic component by 48.2%and 46.7%,respectively.Compared with the existing interleaved parallel magnetic integration scheme,the method can effectively reduce the saturation of the magnetic core,make the magnetic flux distribution on the magnetic core more uniform,reduce the hysteresis loss and eddy current loss of the magnetic core,and improve the system efficiency.Finally,the correctness and effectiveness of the design are verified through finite element simulation and experimental prototype.

关 键 词：双向DC-DC变换器 磁集成电感 回转器–电容模型 有限元仿真 

分 类 号：TM464[电气工程—电器]