基于全集成磁耦合纹波转移滤波器的新型三相软开关逆变器  

Novel Soft Switched Three-phase Inverter Based on Fully Integrated Magnetic Coupled Ripple Transfer Filter

作　　者：胡齐元 蒋建波 潘尚智 林子森 宫金武[1] 查晓明[1] HU Qiyuan;JIANG Jianbo;PAN Shangzhi;LIN Zisen;GONG Jinwu;ZHA Xiaoming(School of Electrical Engineering and Automation,Wuhan University,Wuhan 430072,Hubei Province,China;College of Engineering,Dali University,Dali 671003,Yunnan Province,China)

机构地区：[1]武汉大学电气与自动化学院,湖北省武汉市430072 [2]大理大学工程学院,云南省大理市671003

出　　处：《中国电机工程学报》2025年第6期2308-2317,I0023,共11页PROCEEDINGS OF THE CHINESE SOCIETY FOR ELECTRICAL ENGINEERING

基　　金：国家自然科学基金项目(52177191)。

摘　　要：高效率和高功率密度是电力电子变换器的发展趋势,但两者之间往往相互制约。针对这一问题,提出一种基于全集成磁耦合纹波转移滤波器的新型三相软开关逆变器。所提出的集成滤波器通过纹波转移技术极大衰减了并网电流开关纹波并且转移的纹波能量可被用来辅助主开关实现零电压开通,有利于提高变换器效率。针对该拓扑还提出一种三相对称的磁芯结构,在保证三相并网电流纹波幅值相同的情况下,可实现将所有滤波电感集成在一个磁芯上,有效降低了滤波器体积。此外所提滤波电感集成方法,将纹波转移条件转化为易于工程实现的磁芯磁阻设计。最后,搭建额定功率为2 kW的实验样机,验证所提三相软开关逆变器的有效性。The development trend of power electronic converters is progressing towards high efficiency and high power density.However,these two aspects often pose mutual constraints.To address this issue,this paper proposes a novel three-phase soft switching inverter based on fully integrated magnetic coupling ripple transfer(MCRT)filter.By employing ripple transfer technology,the proposed integrated filter can effectively attenuate the switching current ripple and utilize the transferred ripple energy to assist the main switch in achieving zero voltage switching(ZVS),thereby improving converter efficiency.Additionally,a three-phase symmetric magnetic core structure is introduced for this topology.By ensuring same amplitude of the three-phase grid current ripple,all filter inductors are integrated into a single magnetic core,resulting in reduced volume of the filter.Moreover,the proposed method for integrating filter inductors transforms the condition for ripple transfer into a magneto resistance design problem that can be easily implemented in engineering applications.Finally,a laboratory prototype with a rated power of 2 kW is constructed to validate the effectiveness of the proposed three-phase soft switching inverter.

关 键 词：磁集成 纹波转移 三相对称结构 软开关 

分 类 号：TM46[电气工程—电器]