Optmization of a photovoltaic system connected toelectric power grid

An important aspect related to the photovoltaic system connected to the electric grid is that it can exercise the double function of active power generator and reactive power compensator. Since it is a type of random generation, dependent on environmental conditions, it can supply reactive power to the electrical grid when there is little or no solar radiation. These are important during demand peak hours, when the main grid needs higher amount of reactive power. Although the photovoltaic system does not generate active power in such period of time, it can supply reactive power up to its maximum. Thus, within this context, this work aims to analyze a control proposed to adjust the power supplied by a photovoltaic system to the electric grid at any sunstroke condition. The results show that, when the system is idle, usually at peak hours, without generating active power, a capacitor-like operation can be performed.