一种用于可再生能源的新型升降压变换器  

A Novel Buck-Boost Converter for Renewable Energy

作　　者：梁鹰杨 区峻豪 石丽梅 LIANG Ying-yang;OU Jun-hao;SHI Li-mei(Guangdong Ocean University,Zhanjiang 524088,China)

机构地区：[1]广东海洋大学,电子与信息工程学院,广东湛江524088

出　　处：《电力电子技术》2024年第6期77-79,84,共4页Power Electronics

基　　金：国家自然科学基金(62272109,62171143)。

摘　　要：针对可再生能源发电装置输出电压波动大、输出电能难以存储的情况,此处提出了一种输入、输出连续的新型升降压变换器,采用开关电感结构,实现了低电感电流纹波、宽电压转换比和低开关管电压应力。此处在连续导通模式(CCM)下对变换器进行了详细的工作原理分析和稳态特性推导。为验证所提变换器的可行性,搭建了一台输入12~80V,输出48V,功率100W的实验样机,在升压模式和降压模式下测得最大效率分别为92.62%,95.78%。In response to the high output voltage fluctuations of renewable energy generators and the difficulty of storing the output power,a novel Buck-Boost converter with continuous input and output and switched-inductor structure is presented to achieve low inductors current ripple,wide voltage conversion ratio and low voltage stress on switches.The operating principle and derivation of steady state characteristics for the converter in continuous conduction mode(CCM)are analyzed.An experimental prototype with 12~80 V input,48 V output and 100 W rated power is built to verify the feasibility of the proposed converter.The maximum efficiency is respectively measured under step-up mode and step-down mode as 92.62%and 95.78%.

关 键 词：变换器 输入、输出连续 可再生能源 

分 类 号：TM46[电气工程—电器]