适用于太阳电池的低应力高增益升压变换器
LOW STRESS HIGH GAIN BOOST CONVERTER FOR SOLAR CELLS
许杰 1马小三1
作者信息
- 1. 安徽工业大学电气与信息工程学院,马鞍山 243032
- 折叠
摘要
在太阳能开发利用过程中,升压变换器能实现较高升压比,但存在开关器件电压应力过高问题.为了降低开关器件电压应力,提出一种低应力高增益升压变换器基本结构,在提高电压增益的同时降低了电压应力.为了更好地适用于多种升压场合,将二次型升压网络、开关电感网络、开关电感电容网络和准Z源网络4种升压单元对其储能电感进行替换,得到一类低应力高增益升压变换器,分析了利用准Z源网络替代的高增益升压变换器工作特性,并与同类型变换器进行对比分析.最后,利用Matlab/Simulink仿真软件和实验样机验证了所提变换器理论分析的正确性和可行性.
Abstract
In the process of solar energy development and utilization,Boost converter can achieve high voltage Boost ratio,but there is a problem of high voltage stress of switching devices.In order to reduce the switching device voltage stress a low stress high gain Boost converter basic structure is proposed,which reduces the voltage stress while increasing the voltage gain.In order to better apply to a variety of boosting situations,four types of boosting units,namely secondary Boost network,switched inductor network,switched inductor-capacitor network and quasi-Z source network,are replaced with their energy storage inductors to obtain a class of low-stress high-gain Boost converter.The operating characteristics of the high-gain Boost converter replaced by using quasi-Z source network are analyzed and compared with the same type of converter.Finally,the correctness and feasibility of the theoretical analysis of the proposed converter are verified by using Matlab/Simulink simulation software and experimental prototypes.
关键词
光伏发电/准Z源/升压单元/高增益/低应力/升压变换器Key words
PV power generation/quasi-Z source/Boost unit/high gain/low stress/Boost converter引用本文复制引用
基金项目
国家自然科学基金(119075023)
特种重载机器人安徽省重点实验室开放基金(TZJQR008-2023)
出版年
2024
NETL
NSTL
维普
万方数据