Design and simulation of a 10 MW photovoltaic power plant using MATLAB and Simulink

The paper deals with the components design and the simulation of a photovoltaic power generation system using MATLAB and Simulink software. The power plant is composed of photovoltaic panels connected in series and parallel strings, a DC-DC boost converter and a three-phase inverter which connects to a 0.4 kV three-phase low voltage grid and a 20 kV medium voltage grid by means of a step-up transformer. The DC-DC boost converter uses a MPPT controller and the inverter uses a control method based on d-q theory with a PI current regulator. Some cases for which the dynamic behavior of the configured photovoltaic system presents interest are simulated. They address the solar irradiance and temperature change.