LC并联谐振全桥直流变换器的研究  

Research on LC Parallel Resonant Full Bridge Direct Current Converter

作　　者：李全 苏建徽[1] 赖纪东[1] 徐海波 LI Quan;SU Jian-hui;LAI Ji-dong;XU Hai-bo(Engineering Research Center of Ministry of Education of Photovoltaic System,Hefei University of Technology,Hefei 230009,China;不详)

机构地区：[1]合肥工业大学,光伏系统教育部工程研究中心,安徽合肥230009 [2]东莞南方半导体科技有限公司,广东东莞523808

出　　处：《电力电子技术》2020年第10期90-93,98,共5页Power Electronics

基　　金：中央高校基本科研业务费专项资金(PA2019GDPK-0080);东莞南方半导体科技有限公司项目(2019B010127001)。

摘　　要：为改善开关器件的工作条件和提高变换器的传输效率,以LC并联谐振全桥直流变换器为研究对象进行变换器设计,利用输入电压、负载电流及谐振元件之间的关系,分析了变换器的工作原理及LC并联谐振的谐振过程;阐述了开关器件的软开关实现条件、电路的应用范围及控制特点,并对变换器参数进行设计;最后搭建Matlab/Simulink仿真平台及容量为5 kW的实验样机,通过仿真与实验验证了所提设计方法的正确性与可行性。In order to improve the working conditions of the switching devices and improve the transmission efficiency of the converter,the LC parallel resonant full bridge direct current converter is taken as the research object to design the converter,the working principle of the converter and the resonance process of the LC parallel resonance are analyzed by using the relationship between the input voltage,load current and the resonance elements,the realization conditions and circuits of the soft switch of the switching devices.Finally,the Matlab/Simulink simulation platform and the experimental prototype with a capacity of 5 kW are built.The correctness and feasibility of the design method are verified by simulation and experiment.

关 键 词：变换器 并联谐振 软开关 

分 类 号：TM46[电气工程—电器]