This paper presents a comprehensive overview of DC-DC converter structures used in microgrids and presents a new classification for converters. . "DC microgrids in buildings and data centers. " Telecommunications Energy Conference (INTELEC), IEEE, 2011. Why DC microgrids? Tim Martinson, “380 VDC for Data Center Applications Update: There's More to the Story than Efficiency Improvements” Universal Electric Corp (2011) Shah, K. These systems can vary greatly in size and power, from small islands with several motors on a shared DC bus up to large-scale applications, such as entire factories or data centers with combined loads. . HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci-entific research documents, whether they are pub-lished or not. L'archive ouverte. . Abstract: DC microgrids have emerged as a promising solution in modern power systems due to their simpler structure, lower cost, higher reliability, and superior power quality compared to AC microgrids. Their control systems are also less complex, making them well-suited for integrating renewable. . When compared with the classical AC transmission systems, the DC networks are considered more efficient and reliable, not having any issues regarding the reactive power and frequency control and synchronization. Converters are critical components in the operation of DG microgrids as they ensure proper load sharing and harmonized interconnections between different units of DC microgrid.