Application of Battery Storage System to Improve Transient Responses in a Distribution Grid

This paper investigates the impact of using battery energy storage systems (BES) on the voltage and frequency profiles in the low-voltage distribution grid. The BES is controlled using a virtual synchronous machine (VSM) approach. The increased penetration of renewable energy resources in distribution networks can create voltage and frequency stability issues due to their intermittent nature and lack of rotational inertia. The integration of BES systems in distribution grids can improve the transient performance by mitigating both voltage and frequency fluctuations. The impact of using VSM-based BES systems in distribution grids with high-inertia resources such as synchronous generators and converter-based resources such as solar photovoltaic generation are studied. The effectiveness of the VSM approach is validated by simulation results.