High Gain Hybrid DC-DC Converter with Switched Capacitor for Photovoltaic Systems Applications

Abstract

In this paper is proposed a high gain hybrid DC-DC converter applied to photovoltaic systems. The proposed converter is based on boost converter integrated to cells of a switched capacitor with the addition of a small resonant inductor. This proposal has shown advantages such as extended static gain, reduction of voltage stress in the semiconductors and reduction of current peaks in switches. A 200 W prototype has been assembled and the results are presented. A maximum yield of 97.1 % was obtained for a voltage gain of 10.