Performance Evaluation of PI and Fuzzy Logic Controllers for a Bidirectional Buck-Boost DC/DC Converter in V2G and G2V Applications

This paper presents a comparative analysis of a linear proportional-integral controller and a nonlinear fuzzy logic controller for a bidirectional buck-boost converter in onboard chargers for vehicle-to-grid and grid-to-vehicle applications. The study examines the robustness of both control strategies under voltage variations and assesses their dynamic response to setpoint changes. Simulation results highlight the advantages and limitations of each controller in terms of stability, transient behavior, and adaptability to varying operating conditions. The findings provide insights into selecting the most effective control approach for enhancing the performance and reliability of bidirectional power conversion in electric vehicle charging systems.