  In this paper, the behavior of a photovoltaic (PV) system, with maximum power
point tracking (MPPT) connected to three-phased grid has been investigated. A
voltage source inverter (VSI) has been used to connect the photovoltaic system
to the grid. The control strategy applied to control inverter switches is based
on voltage mode method. Strategy of this project is that during sunlight the
system sends active power to the grid and at the same time compensates the
reactive power of the load. In case there is no sunlight, the inverter only
compensates the reactive of the load. So the photovoltaic system is operated
the whole day. In this paper the behavior of the photovoltaic system to provide
active power and compensate reactive power of the load is investigated. The
time domain simulation is performed using PSCAD/EMTDC software.
