单相光伏并网全系统仿真研究  

Single-Phase Photovoltaic Grid-Connected Whole System Simulation Study

作　　者：吴威[1] 张文菁 张吉[3] 陈昆[1] 裴召刚[1] 

机构地区：[1]东南大学电气工程学院,江苏南京210096 [2]江苏省扬州技师学院,江苏扬州225000 [3]泰州供电公司,江苏泰州225300

出　　处：《电工电气》2012年第7期13-15,20,共4页Electrotechnics Electric

摘　　要：介绍了光伏并网发电系统的两级式拓扑结构,分析了引入电网电压前馈的双闭环控制策略,实现直流母线电压稳定以及单位功率因数并网电流。基于Matlab仿真平台,搭建了系统模型。仿真结果表明,BOOST电路较好地实现了最大功率点跟踪技术,直流母线电压保持稳定,并网电流与电网电压保持同频同相。Introduction was made to two-stage topologic structure of single-phase photovoltaic grid-connected generation system. Analysis was made to double-closed loop control for feed-forward grid voltage control. The system realized DC busbar voltage sta- bility and unit power factor grid-connected current. The system model was built based on Matlab simulation platform. Simulation result shows that BOOST circuit has realized max power point tracking technology better, DC busbar voltage keeps stability and grid-connected current and grid voltage keep on same frequency and phase.

关 键 词：光伏并网 双闭环控制 电压前馈 系统仿真 

分 类 号：TM615[电气工程—电力系统及自动化]