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Simulation of photovoltaic grid connected inverter in case of grid-failure

In this paper, a behavioural model of photovoltaic grid connected system is presented and
simulated. The photovoltaic generator and a single phase inverter are modelled both by the well
known one diode model and a current controlled voltage source respectively. The indirect current
control method has been applied to achieve the inverter current control in order to feed a sinusoidal
current waveform to the ac grid. Finally, normal and faulty conditions of the photovoltaic
generation, especially in the case of grid failure, were simulated and commented.


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