Nonisolated Boost Converter with New Active Snubber Structure and Energy Recovery Capability

Abstract

The boost converters have become one of the most important part of renewable energy plants. The two parameters of boost converters, high voltage gain and high efficiency, have received more attention. In this paper, a boost converter with high voltage gain and high efficiency was used. The proposed topology is a boost converter with high transmission power and reduced voltage stress on the converter components, especially voltage stress on the main switch of the converter. This boost converter has a high efficiency using a new loss reduction technique called active snubber circuit with energy recovery. The proposed nonisolated topology converter was designed with a power of about 500[Formula: see text]W, an input voltage of 48[Formula: see text]V and an output voltage of 380[Formula: see text]V and efficiency of more than 97%. The simulation results of the proposed converter showed different modes of the boost converter. A laboratory model was constructed and the claims of the proposed boost converter were proved.