dual-Mode CoMMon-ground type Inverter applIed to photovoltaIC grId ConneCtIon

被引：0

作者：

Liang G. ^{[1
]}

Han P. ^{[1
]}

Zhao H. ^{[2
]}

Wang F. ^{[3
]}

Cao Y. ^{[4
]}

Tian H. ^{[1
]}

机构：

[1] School of Electrical Engineering, Hebei University of Science and Technology, Shijiazhuang

[2] China Resources Power Tangshan Fengrun Co., LTD, Tangshan

[3] Fuxian Power Supply Branch of State Grid Shaanxi Electric Power Co.，Ltd., Yan’an

[4] Economic and Technological Research Institute of State Grid Hebei Electric Power Co.，Ltd., Shijiazhuang

来源：

Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2024年 / 45卷 / 01期

关键词：

boost-buck; inverters; leakage current; photovoltaic system; transformerless;

D O I：

10.19912/j.0254-0096.tynxb.2022-1460

中图分类号：

学科分类号：

摘要：

Research a novel transformerless dual- mode voltage source inverter（VSI）in which the common ground structure short-circuits the parasitic capacitance and theoretically completely eliminates leakage currents. The inverter consists of a switching- boost-buck（SBB）module integrated with an LC filter network and has a good symmetry of the output waveform. The proposed topology features a wide input voltage range to meet the grid voltage gain，a compact structure，and a simple modulation strategy. Meanwhile，the SBB module allows for soft charging and current stress control within the permissible range. The structural characteristics and operating principle of the inverter are described in detail，a closed-loop controller is designed. The final study results show the feasibility and good performance of the proposed VSI. © 2024 Science Press. All rights reserved.

引用

页码：20 / 24

页数：4

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