High voltage gain DC-DC converter for DC microgrid

Abstract

A group of non-isolated DC-DC high voltage gain converters for Dc micro grid is discussed here. The combination of non-isolated boost interleaved converter helps to obtain high step up gain without operating in a high duty ratio conditions. Through interleaved manner, a continuous current can be drawn from the given input sources. This converter can reduce the input current ripple and current stress which results in the increase the lifetime of the input source and the decrease in conduction losses. These advantages makes this in appealing for renewable applications such as solar systems, microgrid systems etc. Also they can be used to interface the 400-V DC bus in a microgrid system using the low power voltage sources like batteries, photovoltaic (PV) panels, fuel cells, etc.