首页 | 本学科首页   官方微博 | 高级检索  
     

一种光伏发电软开关直流升压电路
引用本文:余运俊,汪硕承,薛云涛,霍佳贺,苏文斌. 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. DOI: 10.3969/j.issn.1001-1390.2016.16.004
作者姓名:余运俊  汪硕承  薛云涛  霍佳贺  苏文斌
作者单位:南昌大学 信息工程学院,南昌,330031
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(2013BBE50102)
摘    要:针对传统boost电路升压比不高的缺陷,改进了一种组合式光伏发电直流升压电路,该电路结构前端采用boost电路和半桥电路串联组合成的升压逆变电路,用隔离变压器实现两级升压,副边采用副边移相控制的一种改进的三电平结构。改进后电路的开关管数量增加,电路中的开关管均实现软开关,从而减少开关过程中的损耗,电路的效率提高。该电路的特点:(1)电路结构简单明了;(2)平均电压增益较高,为后端的逆变提供一个较高的电压;(3)所有开关管实现软开关功能,效率提高。

关 键 词:光伏发电  副边移相控制  软开关  直流升压
收稿时间:2015-04-13
修稿时间:2015-08-04

A photovoltaic power soft switching DC / DC boost converter
YU Yunjun,WANG Shuocheng,XUE Yuntao,HUO Jiahe and WANG Huan. A photovoltaic power soft switching DC / DC boost converter[J]. Electrical Measurement & Instrumentation, 2016, 53(16): 16-22. DOI: 10.3969/j.issn.1001-1390.2016.16.004
Authors:YU Yunjun  WANG Shuocheng  XUE Yuntao  HUO Jiahe  WANG Huan
Affiliation:College of Information Engineering,Nanchang University,College of Information Engineering,Nanchang University,College of Information Engineering,Nanchang University,College of Information Engineering,Nanchang University,College of Information Engineering,Nanchang University
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.
Keywords:photovoltaic power  secondary side phase shift  soft switch  DC -DC boost circuit
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《电测与仪表》浏览原始摘要信息
点击此处可从《电测与仪表》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号