LabVIEW/MATLAB based simulator for grid connected PV system

In this study, LabVIEW and MATLAB/Simulink programs has used together to develop a simulator of grid connected photovoltaic system which has the maximum power point tracking ability. System consists of a photovoltaic module model, a DC/DC boost converter, a voltage source inverter, a maximum power point tracking algorithm and current controller. The photovoltaic panel and maximum power point tracking algorithm are modeled in LabVIEW and a string with ten serial connected modules is used as photovoltaic supply. The two-stage converter composed of a DC / DC and a voltage source inverter and inverter control structure have modeled in MATLAB/Simulink. These components of the system have communicated by using the simulation interface toolkit. PV panel has set according to the datasheets and has been tested by using maximum power point tracking algorithm for different irradiation and temperature conditions. Maximum power point and the instantaneous operating points have been stated on the current-voltage and power-voltage graphs plotted during the operation. This prepared simulator is sufficient for the pre-assessment about the amount of energy to be produced for the geographical planned to invest as well as it can be used for educational purposes.