并联谐振变换器的电路特性分析  

Analysis of Circuit Characteristics of Parallel 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,广东广州510640 [2]福建龙净环保股份有限公司,福建龙岩364000

出　　处：《华南理工大学学报（自然科学版）》2013年第4期33-38,共6页Journal of South China University of Technology(Natural Science Edition)

基　　金：国家火炬计划项目(2007GH060026)

摘　　要：为全面揭示具有电容型滤波器的并联谐振变换器的电路特性,首先,对并联谐振变换器的两种工作模式进行了原理分析,建立了相应的数学模型.然后,讨论了两种工作模式下并联谐振变换器的电路特性,指出在电路等效输出电压小于输入电压时,输入电流线性变化.最后,推导了可用于电路元件参数设计的表达式,提出了满足设计需求的并联谐振变换器谐振元件参数的设计方法.仿真结果表明,文中分析与设计方法是正确的.In order to fully reveal the circuit characteristics of the parallel resonant converter with capacitive output filter, the principle of the two operational modes of the converter is analyzed and the corresponding mathematical models are constructed. Then, the circuit characteristics of the converter in the two operating modes are discussed and a linear variation of the input current is revealed when the equivalent output voltage is less than the input one. Finally, some expressions are deduced to design circuit component parameters, and a design method is proposed to obtain component parameters meeting the application requirements of the parallel resonant converter. Simulated resuits indicate that the above analysis and the proposed design method are both correct.

关 键 词：并联谐振 电路特性 工作模式 电容型输出滤波器 数学建模 

分 类 号：TM131[电气工程—电工理论与新技术]