基于图论的n阶升压式谐振开关电容变换器潜电路分析技术  

Sneak Circuit Analysis in n-Stage Step-up Resonant Switched Capacitor Converters Based on Graphic Theory

作　　者：涂文娟[1] 丘东元[1] 张波[1] 黎剑源[1] 

机构地区：[1]华南理工大学电力学院,广东广州510641

出　　处：《电子学报》2008年第2期271-277,共7页Acta Electronica Sinica

基　　金：国家自然科学基金(No.50507004;60474066)

摘　　要：高阶升压式谐振开关电容变换器的升压阶数增加,拓扑变得更加复杂,其潜在路径隐蔽性更强,因而需要研究一种系统的分析方法.为此本文基于图论提出一种n阶升压式谐振开关电容变换器潜电路分析方法,文中给出了该图论分析法的原理和步骤,并以3阶升压式谐振开关电容变换器为例进行了仿真和实验证明.研究结果表明,该方法简单易行,是一种可供推广的电力电子变换器的潜电路分析方法,为预先发现和消除高阶升压式谐振开关电容变换器中的安全隐患提供了理论依据.With the increasing number of switched capacitor cells,the topology of n-stage step-up resonant switched capacitor converter （RSC） is more complex,so it is hard to observe sneak circuit paths in the converter. In this paper,a general method is proposed to analyze the sneak circuit paths in n-stage step-up RSC converters based on graphic theory. The theorem and steps to obtain sneak paths were explained in detail,and the 3-stage step-up RSC converter was taken as an example to describe how to find out the sneak circuit paths. The proposed sneak circuit analysis method, whose correctness is finally verified by simulation and ex- perimental results,can be extended to other power electronics converters,and is useful for discovering,eliminating or utilizing sneak circuit paths.

关 键 词：谐振开关电容变换器 n阶 升压 潜电路 图论 

分 类 号：TM46[电气工程—电器] O157.6[理学—数学]