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