光伏并网逆变器的分析与研究  

Analysis and Research on Photovoltaic Grid-connected Inverter

作　　者：马幼捷[1] 程德树[1] 陈岚[1] 郭润睿[1] 周雪松[1] 

机构地区：[1]天津理工大学自动化学院,天津300191

出　　处：《电气传动》2009年第4期25-29,共5页Electric Drive

基　　金：国家自然科学基金面上资助(50877053)

摘　　要：光伏阵列产生的是直流电能,需要通过逆变器把直流电转换成交流电才能并到电网。并网逆变器作为光伏阵列与电网的接口装置,起着关键的作用。随着光伏发电系统的发展,并网发电系统中使用的逆变器得到了越来越多的关注。从并网逆变器的技术要求出发,对工作原理、拓扑结构、控制策略等方面进行了详细阐述,比较了不同类型逆变器的优劣及控制效果;并对光伏阵列输出的最大功率点跟踪功能作了简单的介绍。指出了并网逆变器正朝着高效率、智能化、数字化的方向发展。Photovoltaic battery generates direct current, and inverter transforms direct current to alternating current by photovoltaic battery into electricity grid. Grid-connected inverter is a kind of interface device between photovoltaic battery and electricity grid, which plays a crucial role. As the developing of photovoltaic system, the grid inverter has got more and more attention. The technical requirements as starting point, the principle, topology structure and control policy of inverter were mainly illuminated, and compared quality and control effect between different kinds of inverter. It simply introduced function of maximum power point tracking （MPPT） of the photovoltaic battery. In a word, grid-connected inverter will become more high efficiency, intelligent and digital.

关 键 词：并网逆变器 拓扑结构 最大功率点跟踪 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]