A New Transformerless Configuration for Grid-Connected Photovoltaic Inverters

被引：5
|
作者：
Rooholahi, Babak [1 ]
Bighash, Esmaeil Zangeneh [2 ]
机构：
[1] Univ Rostock, Fac Comp Sci & Elect Engn, Rostock, Germany
[2] Shahed Univ, Fac Engn, Tehran, Iran
来源：
PROCEEDINGS OF 2019 IEEE PES INNOVATIVE SMART GRID TECHNOLOGIES EUROPE (ISGT-EUROPE) | 2019年
关键词：
Common mode (CM) voltage; Leakage current; Photovoltaic (PV); Tramsformerless inverter; LEAKAGE CURRENT;
D O I：
10.1109/isgteurope.2019.8905528
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Due to high efficiency, low cost and weight, transformerless inverters are widely used to deliver the photovoltaic (PV) energy to the grid. On the other hand, due to VDE standards, the leakage current between the stray capacitance of the PV array and the ground should be limited for the grid connected PV systems. In this case, some transformerless structures have been presented to restrict the leakage current. This paper presents a new transformerless structure for the PV inverters. The proposed structure keeps the common mode voltage constant in all switching periods and will suppress the leakage current. The performance of the proposed structure is verified by both mathematical and simulation (MATLAB/Simulink and PLECS Blockset) results.
引用
收藏
页数：5
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