Review of Research-Based on Control and Stability Analysis of DC Microgrids

DC microgrid is an effective means to promote the consumption of new energy and alleviate energy crises and environmental problems. Distributed energy sources such as photovoltaics and wind have received a lot of attention because of their advantages of cleanliness and inexhaustible. Compared with the direct connection of distributed energy to the large power grid, the stability and control strategy of the microgrid can effectively improve the utilization rate of distributed energy resources. In this paper, we review the control strategies of DC microgrids, the methods of microgrid stability analysis, and sort out the common instability mechanisms in DC microgrids. Studying the stability of DC microgrid and its control mode has certain significance for distributed energy to ensure the stability and reliability of DC microgrid power supply.