Modeling the dynamics of a DC distribution grid integrated of renewable energy sources

DC power has recently become a potential option and made a vital contribution to the growth of future power systems. On the other hand, DC power is more advantageous than AC power in terms of integrating of renewable energy sources into distribution power networks. Transients in a DC network are different from AC networks´ due to a greater consumption sides as well as a greater participation of electronics converters at generator sides. While the steady state analysis of DC distribution networks becomes more and more comprehensive, dynamic analysis of distribution DC grids is under-investigated. This paper describes a model of a DC network comprising distributed energy resources, battery energy storage systems (BESSs), and loads to produce a general formulation which is subsequently simulated and validated.