无变压器光伏系统中三相Z源三电平四桥臂逆变器的漏电流抑制

Leakage current reduction is one of the important issues for transformerless photovoltaic (PV) systems. Many interesting solutions have been reported to reduce the leakage current for three-phase PV inverters. However, most of them are limited to two-level inverters. Moreover, there is a potential risk of the overcurrent phenomenon. In order to solve the problem, a Z-source three-level four-leg in...