The paper models an interactive model and fundamental signal analysis and then examines the role of battery energy storage systems (BESS) in DC microgrid applications involving two separable systems, namely, the voltage-controlled (V-BESS) and current-controlled (C-BESS) systems. The researchers came up with configurable models that compute data with efficiency they resemble real BESS systems. The approaches to the system are integrated and real-time approach to control which is able to facilitate modular grid applications. In this study small signal analysis is coupled with participation factors, to determine the stability of the system, dynamic performance and sensitivity of the parameters around converter gain and load resistance. The results have been tested using software-in-the-loop (SIL) simulation testing in OPAL-RT 5707XH hardware. Final results include higher system reliability and stability base, optimum method of design implementation and control. The work includes essential technical data on the operation of the battery energy storage system in micro grids with DC power systems in terms of energy balance and stability under varying operating conditions
