Open AccessDual‐buck full‐bridge grid‐connected inverter with common‐mode leakage current elimination
Author(s) -
Dai Yunzhong,
Zhuang Shengxian,
Li Wenzhu,
Jiang Luhang
Publication year - 2018
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2017.3958
Subject(s) - inverter , leakage (economics) , common mode signal , grid , dual (grammatical number) , topology (electrical circuits) , control theory (sociology) , electronic engineering , computer science , engineering , voltage , electrical engineering , mathematics , art , geometry , literature , control (management) , digital signal processing , artificial intelligence , analog signal , economics , macroeconomics
The dual‐buck full‐bridge grid‐connected inverter (DFGI) is well known as its no shoot‐through problem, high efficiency and high reliability, but the common‐mode leakage current exists in the positive half cycle. To solve the problems of common‐mode leakage current of the conventional DFGI, a new DFGI topology is proposed. The corresponding modulation strategy is presented. Meanwhile, on the basis of the theoretical analysis, it can eliminate the common‐mode leakage current of conventional DFGI. The experimental results prove the validity of the theoretical analysis.