摘要
提出一种可用于户用光伏发电系统的新型高增益DC-DC变换器拓扑结构。基于交错并联开关电容的拓扑结构构成一个新型的拓扑结构,并对4通道改进拓扑结构的工作原理和稳态进行分析,拟实现低压侧电流应力的进一步降低,高压侧降低电压应力并实现在输入变化较大的范围内对输出电压的调节。最后,通过搭建1个200 W的原理样机验证了上述理论分析的正确性。
A novel high step-up DC-DC converter was proposed which can be used for household photovoltaicpower generation system. Based on the topology of the interleaved parallel switched capacitors topology structure,so as toform a new kind of topology structure,and the working principle and the stesdy-state of the four channel improvedtopolpgy were analysed. This topology aimed to reduce current stress in low-voltage side further,decrease voltage stressin high-voltage side,and to achieve output voltage regulation with a wide range input.Finally,a 200 W prototype isimplementedtoverifythecorrectnessoftheabovedtheoreticalanalysis.
作者
陈培育
闫海云
李国栋
王旭东
薛利坤
CHEN Peiyu;YAN Haiyun;LI Guodong;WANG Xudong;XUE Likun(State Grid Tianjin Electric Power Company,Tianjin 300010,China;School of Electrical Engineering and Automation,Tianjin University,Tianjin 300072,China)
出处
《电气传动》
北大核心
2016年第9期12-15,共4页
Electric Drive
基金
国网总部科技项目<户用光伏发电系统关键技术研究与示范应用>(SGTJDK00DWJS1500098)
关键词
高增益
DC-DC变换器
户用光伏
开关电容
high step-up
DC-DC converter
household photovoltaic
switched capacitors