电力系统及其自动化学报2018，Vol.30Issue(2)：49-53,5.DOI:10.3969/j.issn.1003-8930.2018.02.009
新型单级升降压并网逆变器的研究
Study on Novel Single-stage Boost-Buck Grid-connected Inverter
摘要
Abstract
Considering that the input source of a small distributed generator usually varies widely,a topology configura?tion of a novel single-stage boost-buck flyback inverter composed of three switches is proposed.Through the mathemati?cal modeling of the inverter,its operation principle and current control strategy are illustrated.The difference between discontinuous conduction mode(DCM)and continuous conduction mode(CCM)is compared,and a closed-loop sinu?soidal pulse width modulation(SPWM)strategy is proposed.The inverter can realize standalone load and grid-connect?ed operations,and it has advantages such as least switches,simple control and high efficiency.Finally,simulation and experimental results show that the mathematical analysis of the converter is correct and feasible,and the standalone load and grid-connected operations can be realized.关键词
分布式发电/三开关逆变器/拓朴结构Key words
distributed generation/three-switching inverter/topology configuration分类
信息技术与安全科学引用本文复制引用
潘红英,李宋..新型单级升降压并网逆变器的研究[J].电力系统及其自动化学报,2018,30(2):49-53,5.基金项目
江西省工业支撑计划资助项目(20161BBE50057) （20161BBE50057）
江西省自然科学基金资助项目(20161BAB206157) （20161BAB206157）
江西省教育厅自然科学基金资助项目(GJJ160495) （GJJ160495）
