DC Microgrid Technology: Study on DC Microgrid Bus Configurations and Architectures for Rural Electrification and a Proposed DC Microgrid Architecture

Abstract-The country’s growing population puts additional pressure on power grids for electricity. The integration of Distributed Energy Resources (DER) has emerged as a viable approach to address issues related to energy scarcity, power reliability, and electricity price volatility. Since the mid-2000s, integration of DERs with the grid has become an important area of research. In particular, the high cost of infrastructure and insufficient power generation make it impossible to electrify rural areas using national power grids. Due to its benefits and flexibility, low voltage, low power solar PV DC microgrids have received a lot of interest in recent years. Because of their efficient distribution, these DC microgrids are increasingly being installed in rural locations. Therefore, it is becoming essential to plan appropriate architectures for rural electrification based on load alignment and location. This paper provides a detailed examination of the many DC Microgri distribution topologies that have been published in the literature. A suitable architecture was suggested based on a comparison of several designs to provide more reliable and minimal line loss electricity to those living in rural areas. The researchers can select or create suitable DC Microgrid architecture and control strategies to deliver higher power standards thanks to this comparison investigation.