Research on leakage current suppression of new three-phase Buck-Boost photovoltaic inverter

被引：0
|
作者：
Wang L. [1 ]
Lin J. [1 ]
Zhu W. [1 ]
Zhang J. [2 ]
Dong Z. [1 ]
机构：
[1] Key Lab of Power Electronics for Energy Conservation and Motor Drive of Hebei Province, Qinhuangdao
[2] Beijing Institute of Strength and Environment, Beijing
来源：
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2022年 / 43卷 / 07期
关键词：
Leakage current; SPWM; Step-up/down; Transformerless PV inverter;
D O I：
10.19912/j.0254-0096.tynxb.2020-1199
中图分类号：
学科分类号：
摘要：
The common mode current is one of the key factors limiting the widespread use of transformerless PV inverters. Thus, A new three-phase Buck-Boost inverter which can be used in solar PV systems is proposed in this paper to solve this problem. This paper firstly introduces the topology of the inverter, analyzing its working principle, deriving the expression of its common- mode voltage at any operating mode. The influence of the Sinusoidal Pulse Width Modulation(SPWM)on common- mode voltage(CMV)existing in this inverter and leakage current are then analyzed. Finally, the above scheme is verified by the simulation and experimental setup. According to the results and data from the experiments, this new inverter is effective and feasible. © 2022, Solar Energy Periodical Office Co., Ltd. All right reserved.
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页码：101 / 108
页数：7
相关论文
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