PV and Wind Energy Based EV charging station in MATLAB
Introduction:
We will explore a simulation model developed for a PV and wind energy system-based Electric Vehicle (EV) charging station using Matlab. This model incorporates a unique approach involving a wind energy conversion system, PV power generation, and EV battery charging. The system includes a battery that serves as a swappable energy storage unit for EVs, enhancing flexibility and efficiency.
System Components:
Wind Energy Conversion System:
Wind Turbine
Permanent Magnet Generator
Rectifier
Boost Converter
PV Power Generation:
PV Panels (2000 volts)
Boost Converter controlled by Perturb and Observe (P&O) Maximum Power Point Tracking (MPPT)
EV Battery:
Battery connected to the DC bus
Swappable for efficient EV charging
Code Implementation:
The model includes a code segment for the Wind MPPT (Maximum Power Point Tracking) using the Perturb and Observe (P&O) method. The P&O algorithm adjusts the duty cycle of the boost converter to maximize power output from the wind turbine. The PV system is equipped with a boost converter controlled by a P&O MPPT algorithm to optimize power generation. The EV battery charging process is illustrated, emphasizing the swappable nature of the battery for efficient charging.
Simulation Parameters:
The simulation includes variations in irradiation levels and wind speeds to assess the system's response under different conditions. Wind speed changes from 12 to 10.8 meters per second after one second, and irradiation levels vary from 1000 to 500 watts per square meter.
Results and Analysis:
The simulation results include graphs depicting power generation from wind and PV sources, charging power for the EV battery, charging current, and State of Charge (SOC) of the battery. The charging station demonstrates its capability to adapt to changing environmental conditions and efficiently charge EV batteries.
Conclusion:
The simulation model successfully showcases a PV and wind energy system-based EV charging station with swappable batteries. The integration of wind and solar power sources enhances the station's reliability and sustainability. The model's flexibility allows for the addition of multiple batteries for simultaneous charging, offering a practical solution for real-time EV charging needs.