MATLAB Implementation of Single Stage Three Phase Grid-connected PV Systems
Step-by-step implementation of a state-of-the-art grid-connected photovoltaic (PV) system. We will design a 100 kilowatt (kW) grid-connected PV system, detailing the entire process from setting up the PV array to connecting the inverter.
Simulation and Tuning
Simulation Setup:
Implement the PV array, MPPT algorithm, and inverter control in a simulation tool.
Set sample time and solver configuration.
Tuning the PID Controller:
Use a PID tuner to identify the plant and tune the PID controller parameters.
Simulate the model and adjust parameters to minimize oscillations and harmonics.
Results and Analysis
Power Output:
Verify that the system generates close to 100 kW under standard test conditions (STC).
Current and Voltage Quality:
Ensure that the output current and voltage are within acceptable harmonic distortion levels.
Measure the total harmonic distortion (THD) to ensure it is below 5%.
Dynamic Response:
Test the system's response to changes in irradiation levels to ensure stability and reliability.
Conclusion
This step-by-step implementation guide provides a comprehensive approach to designing and simulating a 100 kW grid-connected PV system. By following these steps, you can ensure efficient power generation and high-quality output suitable for grid integration.
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