Coordination of smart inverter-enabled distributed energy resources for optimal PV-BESS integration and voltage stability in modern power distribution networks: A systematic review and bibliometric analysis
Olufunke Abolaji Balogun, Yanxia Sun, Peter Anuoluwapo Gbadega
Abstract
• Voltage regulation is an essential element of power system operation, ensuring that voltage levels across different points in the distribution network remain within permissible limits to maintain grid stability, protect equipment, and fulfill customer demands. • The integration of DERs in electrical power systems necessitates compliance with certain grid codes and standards to guarantee dependable and secure operation. The performance standards and technical specifications that DERs must fulfill to connect to the grid are outlined in these standards and codes. • Smart inverters, also known as grid-support inverters or advanced inverters, play a pivotal role in modernizing distribution systems and enabling the seamless integration of distributed energy resources (DERs) into the grid. • Bibliometric analysis is employed to quantify the research landscape, highlighting key publications, citations, publications per country, and collaborative networks. Integrating photovoltaic (PV) and battery energy storage systems (BESS) in modern power distribution networks presents opportunities and challenges, particularly in maintaining voltage stability and optimizing energy resources. This systematic review and bibliometric analysis investigates the coordination of smart inverter-enabled distributed energy resources (DERs) for enhancing PV-BESS integration and ensuring voltage stability. The study synthesizes recent advancements in smart inverter technologies, which provide grid support functions such as Volt/VAr control, and their applications in DER coordination. A comprehensive review of the literature is conducted to identify prevailing trends, research gaps, and emerging techniques in the field. Bibliometric analysis is employed to quantify the research landscape, highlighting key publications, citations, publications per country, and collaborative networks. The findings reveal that smart inverters play a crucial role in mitigating voltage violations and improving the hosting capacity of PV systems in distribution networks. Furthermore, optimal inverter settings, strategic placement of PV-BESS, and advanced control algorithms are identified as critical factors for effective DER integration. The study concludes by proposing future research directions, including the exploration of smart inverter interactions with legacy grid management systems and the development of robust algorithms for dynamic and adaptive DER coordination. This review serves as a valuable resource for researchers and practitioners aiming to enhance the stability and efficiency of power distribution networks through advanced DER management strategies.