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Solar PV Grid Based EV Charging Station in MATLAB

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:

  1. Power Sector:

  • PV System: The solar PV array generates power under varying irradiation conditions.

  • EV Battery System: An Electric Vehicle (EV) battery is charged using the generated solar power.

  • Grid System: The grid provides additional power to the EV battery if needed.

  1. Control System Sector:

  • Different control logics are implemented for the PV system, EV battery system, and grid inverter system.

  1. 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.


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