An overview of DC Microgrid with DC distribution system for DC loads

DC Microgrid (MG) with DC distribution system is an attractive technology over the last decade due to its inherent compatibility with renewable energy sources (RESs), DC loads, and storage devices. The worldwide growing concern on global warming and reduction of fossil fuel has raised the need for clean and eco-friendly RESs for electricity generation through the MG concept. DC MG can be linked to the main electrical grid or can act in isolation. Hence it is an effective system for isolated and rural areas, and it is accessible from small buildings up to huge plants. This paper reports an overview of the latest possible techniques and challenges in standardization, control approaches, protection issues associated with DC MG and DC distribution system. This paper also highlights the importance of DC MG for DC loads.