Solar PV Grid Based EV Charging Station in MATLAB
Introduction:
Welcome to LM Solution! In this simulation model walkthrough, we will explore the development of a solar photovoltaic (PV) grid-based EV (Electric Vehicle) charging station using MATLAB. This simulation model integrates various sectors, including power, control, and measurement, to showcase the functionality of a solar-powered charging station.
Simulation Model Overview:
The simulation model comprises three main sectors:
Power Sector:
PV System:Â The solar PV array generates power under varying irradiation conditions.
EV Battery System:Â An Electric Vehicle (EV) battery is charged using the generated solar power.
Grid System:Â The grid provides additional power to the EV battery if needed.
Control System Sector:
Different control logics are implemented for the PV system, EV battery system, and grid inverter system.
Measurement Sector:
Parameters such as PV power, battery voltage/current/power, grid voltage/current/power, and overall power are measured.
Key Components and Specifications:
1. Solar PV System:
PV Array Rating: 2000 Watts
Configuration: Multiple panels in parallel and series
PV Panel Specifications: 250 Watts, operating around 245-246 volts
2. EV Battery System:
Battery Rating: 240 volts, 40 Ah
Initial State of Charge: 50%
Bidirectional Converter for Charging: Designed for 2000 Watts
3. Grid System:
Grid Voltage: 230 volts, 50 Hz
Single-Phase Converter connected to DC Bus via L-Filter
4. Control Logic:
PV System Control: Incremental Conductance MPPT (Maximum Power Point Tracking)
EV Battery System Control: Voltage control method
Grid Inverter System Control: Current control method
5. Simulation Results:
The simulation results demonstrate the system's behavior under changing irradiation conditions. The PV power extraction varies accordingly, influencing the grid power supply to charge the EV battery.
Conclusion:
This simulation provides insights into the operation of a solar PV grid-based EV charging station. The control logics ensure efficient power extraction from the PV array, optimal charging of the EV battery, and grid power utilization when necessary.