一种带有泵升电容的新型高增益升压直流变换器  

A Novel High Step-up Boost Converter with Charge Pump Capacitor

作　　者：屈克庆[1] 梁晓霞[1] 赵晋斌[1] 李芬[1] 

机构地区：[1]上海电力学院电气工程学院,上海市200090

出　　处：《电力系统自动化》2014年第19期102-107,共6页Automation of Electric Power Systems

基　　金：上海市科委浦江计划(12PJ1403900);上海市教委科创重点项目(13ZZ132)

摘　　要：为了满足分布式发电系统中必须把太阳能、燃料电池和蓄电池输入的低压直流转换为高压的要求,在传统型升压直流变换器的基础上,提出了一种基于双电感和泵升电容的新型拓扑结构。该拓扑结构利用电感和电容的并联充电、串联放电特性,较好地实现了低占空比条件下高电压增益的目标。最后,分析了该拓扑结构在3种不同电感条件下的工作原理,并通过仿真验证了上述理论分析的正确性。In order to meet the demands of the distributed generation system for converting low direct current （DC） input voltage from solar,fuel cell and battery to high output voltage,a novel Boost converter topology with a charge pump capacitor and double inductors based on the traditional Boost converter is proposed.The proposed converter realizes the high voltage gain under low duty cycle by charging through the inductors and capacitor in parallel and discharging through the inductors and capacitor in series.The operation principle and steady-state analysis are provided in three different inductance conditions. Finally,the results of the analysis are verified by simulation.

关 键 词：分布式发电系统 直流变换器 泵升电容 低占空比 高电压增益 升压变换器 

分 类 号：TM46[电气工程—电器]