Resumen

This document describes the modeling, design, simulation and experimental validation of a bidirectional DC / DC converter dedicated to the interconnection between ELVDC (48V) and LVDC (240V) buses in a hybrid micro network. The converter has a nominal power of 250W and operates at a constant switching frequency of 25 kHz. The operation of the converter is described for three modes required in the application: Buck Mode, Boost Mode and Power Transfer Mode. The results obtained are satisfactory in terms of efficiency, which takes values greater than 85% in the operating range and has a maximum of 94% in Boost Mode. The research assistance from which this report is derived is part of the “Smart hybrid microred pilot plant for agricultural automation and electrical autonomy applications in sustainable rural housing MIREDHI - LAB” project, which seeks to implement and integrate generation systems, Power conversion, control and monitoring of a smart hybrid microred pilot plant.