A NIMĒṢA dc Microgrid is a power network that allows a large amount of solar energy using distributed photovoltaic generation units along with storage devices and traditional electric power systems were designed to provide AC power, via high-voltage AC (HVAC) transmission lines and low voltage distribution lines to households and commercial consumers. Nowadays, all the consumer equipment and DG units are packed with power electronics devices. These devices (such as computers, fluorescent lights, variable speed drives, households, industrial appliances, and equipment) need the DC power for their operation. Because of this, all these DC devices require conversion of the available AC power into DC for use, and the majority of these conversion stages typically utilize inefficient rectifiers. Moreover, the power from DG units must be converted into AC to tie with the existing AC electric network.

In the case of DC MG configurations, low voltage DC links are based on bipolar configurations where the loads can be connected either across the positive polarity and the ground or between the two polarities. The LVDC distribution network facilitates the interconnection of more number of DG units. Measuring instruments like advanced metering infrastructures (AMIs), demand energy management (DEMs) and protection systems can also be integrated into the power converters. To achieve this, many researchers stressed the emphasis on the DC MGs applications such as power supply for the critical loads in commercial buildings, electronics factories, and hospitals. It is concluded that the DC MGs have attractive features in terms of simple configuration, low system cost, and the overall improved efficiency because few power converters are needed to be compared to the AC MGs