Experimental Tests on a Multilevel Converter for Grid-Connected Photovoltaic Systems

被引：0
|
作者：
Grandi, G. [1 ]
Ostojic, D. [1 ]
Rossi, C. [1 ]
机构：
[1] Univ Bologna, Dept Elect Engn, Alma Mater Studiorum, I-40136 Bologna, Italy
来源：
2008 IEEE 11TH WORKSHOP ON CONTROL AND MODELING FOR POWER ELECTRONICS | 2008年
关键词：
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A complete set of experimental tests on a novel conversion scheme for three-phase grid-connected photovoltaic (PV) generation systems is presented in this paper. The proposed scheme is based on two insulated strings of PV panels, each one feeding a standard two-level three-phase voltage source inverter (VSI). The inverters are connected to grid by a three-phase transformer with the open winding configuration on inverters side. The resulting conversion structure acts as a multilevel converter, doubting the power capability of a single VSI with given current rating. An original control method has been introduced to regulate the dc-link voltages of each VSI, allowing the whole converter to inject the PV energy into the grid and to perform as a power active filter.
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收藏
页码：235 / 241
页数：7
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