LCC谐振变换器的电路特性分析  

Analysis of Circuit Characteristics of LCC Resonant Converter

作　　者：张治国[1] 谢运祥[1] 袁兆梅 

机构地区：[1]华南理工大学电力学院,广州510641 [2]福建龙净环保股份有限公司,龙岩364000

出　　处：《电工技术学报》2013年第4期50-57,共8页Transactions of China Electrotechnical Society

基　　金：国家火炬计划项目资助项目(2007GH060026)

摘　　要：为了研究具有电容型滤波器LCC串并联谐振变换器的电路特性,对其进行了建模与分析。首先,建立了两种工作模式下LCC谐振变换器的时域数学模型;然后,在数学模型的基础上研究了LCC谐振变换器的电路特性,推导了谐振槽元件参数的计算表达式,讨论了谐振槽元件参数选择与电路特性之间的关联,指出并联电容与串联电容的比值是决定电路性能的一个重要因数;最后,根据设计要求提供了LCC谐振变换器电路的设计方法,介绍了设计过程,给出了仿真和实验结果。In order to study the circuit characteristics of the capacitive output filter series-parallel resonant converter （LCC）, the modeling and analysis is presented. Firstly, for two operating modes, time-domain mathematical model is obtained respectively. Then, base on the mathematical models, the circuit characteristics of LCC resonant converter is studied, and the computation expressions are deduced for the circuit parameters design, and the relationship between the resonant tank component values choice and the circuit characteristics is discussed. It is pointed out that the parallel-to-series-capacitor ratio is an important factor for the circuit performance. Finally, a design method of the LCC resonant converter is provided according to design requirements, and the design process is introduced. The simulation and experimental results are presented.

关 键 词：串并联谐振 工作模式 电流连续 数学建模 电路特性 

分 类 号：TN624[电子电信—电路与系统]