Analysis of impact for PV-BES strategies in low-voltage distribution system

This paper proposes a new approach for interconnecting Distributed Energy Resources (DERs) in low-voltage distribution networks, focusing on integrating photovoltaic (PV) generation systems and Battery Energy Storage (BES). To optimize the integration of DERs into distribution energy systems, distinct voltage profiles of customer's nodes and energy losses along the grid have been analyzed. The applied methodology utilizes the load flow study module of the PSS/E software, in conjunction with developed Python algorithms to study several studies over 24-h periods. The main parameters analyzed include: the number of clients with a connected PV system, customer-installed power, and load profiles of all clients connected to the same source. Furthermore, two battery energy storage strategies have been examined: centralized energy storage and distributed energy storage. An independent voltage control has been implemented to assess the benefits of PV systems. The obtained results contribute to ongoing efforts toward more sustainable and efficient distribution energy systems and provide valuable insights to overcome barriers to DER penetration in low-voltage distribution networks.