Black-box Modeling of Converters in Renewable Energy Systems for EMC Assessment: Overview and Discussion of Available Models

The development of renewable energy systems interfaced with the grid by power electronic converters leads to increasing issues electromagnetic coexistence between and communication lines, as well severe quality issues, such total harmonic distortion at consumer side. Therefore, high-frequency modeling is great importance guide design distribution networks involving sources. Owing system complexity, black-box approaches offer more advantages than traditional circuit modeling, far compatibility (EMC) analysis filter are targets. In this study, different techniques for introduced systematically analyzed. First, general theory explained. Subsequently, three compared in terms accuracy required experimental setup. Finally, possible limitations investigated discussed.