Abstract
In recent year, with increasing concern about global environmental protection, producing natural free energy resources has been a focus of constant attention. Especially, the solar photovoltaic (PV) power energy became widely used over the last decade. As for the grid interactive inverter, higher conversion efficiency is further required. This paper presents a design consideration for current resonant converter, which is equipped for string power conditioner to improve its conversion efficiency. We have developed a higher efficiency prototype power conditioner and 94% as the maximum conversion efficiency was obtained at 3kW output.
