Prototype development of a full-bridge isolated boost converter for solar photovoltaic systems integration

Abstract

A critical aspect of solar photovoltaic (PV) systems integration is the power electronics interface technologies for DC power conversion. Successful integration of PV systems at all levels requires reliable, low-cost, and efficient interface capabilities. The research work for this paper presents a novel PV architecture and the development of a low voltage full bridge isolated boost converter prototype DC converter design, that is suited for solar PV integration, and provides a foundation for future advances in the areas of operational efficiency, reduced switching losses, and improved conversion ratios that the team plans to investigate. The design topology is established for future development to medium voltage applications, especially with respect to larger PV installations. The prototype converter was successfully designed, constructed, and tested for operation. In addition to the prototype converter development, the work includes a simulation model for design and test verification. The model will be utilized for analysis of future developments aimed at optimization methods and advances to the initial prototype design and to be implemented in a full scale medium voltage PV system.