电测与仪表2016，Vol.53Issue(16)：16-22,7.
一种光伏发电软开关直流升压电路
A photovoltaic power soft switching DC/DC boost circuit
摘要
Abstract
A combined photovoltaic DC -DC boost circuit is improved according to the step -up ratio of traditional boost circuit is not high.Boost circuit and half -bridge circuit are adopted in series combination to achieve boost in-verter circuit in front -end of circuit structure.Isolation transformer can realize two step voltage transformations.An improved three -level configuration is adopted in the secondary side of secondary side phase -shift control.The num-bers of IGBT are increased with an improved circuit.All of the IGBT in circuit achieved soft switching and reduced loss during switch process.In addition, the efficiency of circuit is improved.This circuit has the following characteris-tics: 1.The structure of circuit is simple and clear.2.The gain range of average voltage is higher and provides a high voltage for back -end of inverter.3.The soft switch can be achieved in all IGBT to enhance efficiency.关键词
光伏发电/副边移相控制/软开关/直流升压Key words
photovoltaic power/secondary side phase shift/soft switch/DC -DC boost circuit分类
信息技术与安全科学引用本文复制引用
余运俊,汪硕承,薛云涛,霍佳贺,王欢..一种光伏发电软开关直流升压电路[J].电测与仪表,2016,53(16):16-22,7.基金项目
国家国际科技合作专项（2014DFG72240）；国家自然科学基金（61563034）；国家科技支撑计划（2013BAA01B01）；江西省自然科学基金（20151BAB206051）；江西省科技支撑计划 （）
