Contemporary Patterns and Progressions in Topologies of DC-DC Converters with Control Methodology

DC-DC converters have achieved great popularity in recent decades due to their immense penetration in various applications. With this motivation, the authors have conducted a thorough review of recent advancements in various topologies of DC-DC converters. The need for DC power has raised further for certain applications like grid integration of distributed generation (DG), solar photovoltaic (PV), wind power generation (WPG), fuel cells (FC), etc. The investigation of converter topology is performed to achieve the desired objective of a specific application. Like in a PV system, to obtain the inherent capability of a DC-DC converter for operating at the maximum power point (MPP) and thereby electronically extracting the maximum power from the source. Hence, a detailed review of topological advancements on the low to medium-voltage and medium-to-high-power DC-DC converters has been carried out. Moreover, a thorough investigation has been carried out on profuse closed-loop strategies and compared with each other for obtaining the optimum or maximum output performance and thereby obtaining the utmost source utilization. The modern control techniques though have relatively more calculation time but, they tend to reduce the steady-state error that leads to the stabilization of the converter. Lastly, certain applications of the DC-DC converters have been explained to get an overall idea of the usefulness of such power converters.