Comprehensive Review on the Design and Implementation of Single-Phase Bi-Directional Ev Chargers for Efficient V2g And G2v Operations

Integrating electric vehicles (EVs) with the power grid opens the doors to a new level of energy management through Vehicle-to-Grid (V2G) and Grid-to-Vehicle (G2V) operation. These applications call for the development of reliable and efficient bidirectional chargers, facilitating the energy flow to and from the grid and letting EVs operate as distributed energy resources. A significant addition of such systems will be the single-phase bidirectional chargers, common in homes or small commercial setups, that provide localized assistance in grid stability, load balancing, and integration of variable renewable energy sources. The review deals with the design, control strategies, and operational challenges of single-phase bidirectional chargers, with special emphasis on their application for V2G and G2V functions. Topologies of the power electronics, safety and insulation requirements, and communication protocols critical to the smooth operation of V2G and G2V are discussed. Control algorithms for active power flow management and battery management systems are important in achieving energy transfer efficiency and prolonging battery life. In this review, current technologies are discussed to highlight the main challenges in terms of thermal management, grid interfacing, and cost-effectiveness. It will pinpoint future research directions, primarily in the fields of improvements in semiconductor technologies and artificial intelligence-based control methods that are capable of further enhancing charger performance and scalability. The final results again suggest single-phase bidirectional chargers are keen contributors to a thriving sustainable energy landscape by fortifying grid resilience and consumption growth in renewables.