A Comprehensive Review of Various Isolated DC-DC Converters Topologies Associated with Photovoltaic Applications

Abstract

Abstract: Environmentally friendly renewable energy sources showed substantial development over the most recent couple of years. Compared with other RES, extracting power from solar has become the most beneficial and profitable source because of its environmental friendly nature. In the process of extraction of power, DC-DC converters has given conspicuous interest due to their broad use in various applications. Although a lot of advancements, research work, and continuous tuning of circuits of photovoltaic systems, still remarkable efficiency and stability has not been achieved yet. In this paper, exhaustive research and development of DC-DC converters are identified and studied. It surveys the difficulties associated with implementing new converter topologies in photovoltaic applications. Presented new topologies that have simpler control, less number of components, economical, and suitable for solar applications. Various types of isolated converter are explained such as different bidirectional converters, high step- up converters, zero current switching, high frequency isolated converter, isolated converter with discontinuous input, quasi-Z-source converter, multiport converter, high efficient converter, single-switch converter and single-switch resonant converter. Different types of structure characteristics and operation of the converters are presented. Based on the distinct features, a comparison of the converters has been carried out. From the review, a single converter topology does not fulfill all requirements in the industry. Future scopes of the research trend are suggested. The current survey is to update the research carried out during the time gap.