A reduced leakage current transformerless photovoltaic inverter

被引：27
|
作者：
Tey, Kok Soon [1 ]
Mekhilef, Saad [2 ]
机构：
[1] Univ Malaya, Fac Comp Sci & Informat Technol, Dept Comp Syst & Technol, Kuala Lumpur, Malaysia
[2] Univ Malaya, Dept Elect Engn, Power Elect & Renewable Energy Res Lab PEARL, Kuala Lumpur, Malaysia
来源：
RENEWABLE ENERGY | 2016年 / 86卷
关键词：
HERIC inverter; H5; Topoogy; Leakage current; Photovoltaic inverter; Transformerless inverter; HIGH-EFFICIENCY; SOLAR-ENERGY; SYSTEMS; TOPOLOGY;
D O I：
10.1016/j.renene.2015.09.039
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The transformerless inverters used in the grid connected photovoltaic (PV) system induce leakage current due to the absence of galvanic isolation and unstable common mode voltage. Even though, the leakage current is able to be reduced by using the H5 topology, it is still considered high due to the existence of junction capacitance in the switches during the freewheeling mode. In this paper, a six switches and two diodes single phase transformerless PV inverter with stable common mode voltage and reduced leakage current is proposed. The simulation of the proposed topology is carried out in MATLAB and validated experimentally. The results show that the proposed topology has lower leakage current as compared to the H5 topology. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1103 / 1112
页数：10
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