Efficient and Reliable Fast Charging Station for Electric Vehicles: Integrating PV System and Optimized Control

In this study, an innovative electric vehicle (EV) charging station that integrates multiple energy sources for efficient EV charging is introduced. It combines photovoltaic (PV) panels, a battery storage system, and grid connectivity to ensure reliable and sustainable charging. The PV panels act as the primary source of clean and renewable energy, prioritizing PV energy for EV charging to reduce grid reliance and promote eco-friendly charging. A modified bidirectional Zeta-KY converter is utilized to maintain a constant output voltage, with a chaotic dragonfly optimized PI controller for precise regulation. During periods of insufficient PV power, the bidirectional converter steps down grid power for EV charging. The flow of grid power to the EV station's battery is managed by a dynamic power source management algorithm for uninterrupted power availability. The efficacy of the design is demonstrated through comprehensive simulation and experimental outcomes. The suggested converter outperforms other counterparts, achieving peak efficiencies of 97% in boost mode and 96.8% in buck mode. A comparative analysis of controllers reveals that the Chaotic Dragonfly optimized PI controller excels with a low settling time of 0.10 sec, zero overshoot, rapid rise time, and a low steady-state error of 0.1%.