Virtual Inertia - Based Distributed Consensus Control of Bi Directional Converter for Battery Energy Storage System in DC Microgrids

This paper introduces a Virtual Inertia - based Distributed Consensus (VI-DC) Control strategy for the bi directional converter integrating Battery Energy Storage Systems (BESS) for the proposed DC Microgrid, addressing critical challenges such as voltage stability, power sharing accuracy, and dynamic response under fluctuating generation and load conditions. By incorporating virtual inertia into a distributed consensus framework, the approach mitigates voltage transients and enhances system stability by dampening rapid fluctuations. The distributed average consensus frame work ensures accurate current sharing among distributed generation units (DGs) and BESS, maintaining voltage regulation across the DC bus. Integrating BESS with virtual inertia further strengthens DC bus resilience, enabling the system to adjust dynamic disturbances and sudden change in load. Compared to conventional droop based inertia strategies, VI - DCC improves transient response, reduces voltage deviations, and enhances power sharing coordination among the DGs. Detailed simulation studies on the proposed topology were carried out in MATLAB/Simulink platform and the outcome indicates the effectiveness of the proposed control strategy.