一种应用于光伏发电的混合式高增益变换器  

A Hybrid High-Gain Inverter for Photovoltaic Power Generation

作　　者：夏德印 张赛 轩建举 杨国杰 XIA Deyin;ZHANG Sai;XUAN Jianju;YANG Guojie(Department of Electrical Engineering,Xuchang Electrical Vocational College,Xuchang He’nan 461000,China;Xuji Power Co.,Ltd.,Xuchang He’nan 461000,China)

机构地区：[1]许昌电气职业学院电气工程系,河南许昌461000 [2]许继电源有限公司,河南许昌461000

出　　处：《电子器件》2023年第5期1386-1392,共7页Chinese Journal of Electron Devices

基　　金：2021年许昌电气职业学院自然科学(科技攻关)项目;2021年河南省职业教育教师教学创新团队项目(教办职成[2021]115号)。

摘　　要：针对光伏电池板等可再生能源呈现的低压特性,提出了一种具有高效率的单开关高升压比DC-DC变换器。所提的高升压比DC-DC变换器使用耦合电感器和电容-二极管技术来实现高电压增益。简言之,该变换器通过改变耦合电感的匝数比,使得不需要在高占空比条件下工作,并可获得高电压增益。此外,通过使用两个无源钳位电路来处理耦合电感器的漏感能量,以减少半导体器件应力,从而提高效率。描述了该变换器在连续和不连续导通模式下的性能和理论方程。最后,搭建了实验样机以验证理论和仿真分析的正确性。In view of the low output voltage characteristics of renewable energy such as photovoltaic panels,a single-switch high boost ratio DC-DC converter with high efficiency is proposed.The proposed high boost ratio DC-DC converter uses coupled inductor and diodecapacitor techniques to achieve high voltage gain.In short,the converter does not need to work under high duty cycle conditions by changing the turns ratio of the coupled inductor,and can obtain high voltage gain.In addition,efficiency is improved by using two passive clamp circuits to handle the leakage inductance energy of the coupled inductor to reduce semiconductor device stress.The performance of the converter under continuous mode and discontinuous mode are described.Finally,an experimental prototype is built to verify the correctness of the theory and simulation analysis.

关 键 词：光伏变换器 高增益 耦合电感 电压应力 

分 类 号：TM464[电气工程—电器]