Analysis and implementation of high step-up DC-DC converter for PV based grid application

The high static gain DC-DC converter using a single switch for Photovoltaic (PV) based grid application with improved efficiency is proposed in this article. This proposed topology has been derived from single ended primary inductor converter (SEPIC) by introducing a voltage-doubler circuit for providing high voltage gain with reduced voltage stress across the semiconductor devices. The operating principle, steady state analysis and the design...