An Overview of the PV System

solar power is the conversion of sunlight into electricity, either directly using photovoltaics (PV) or indirectly using concentrated solar power (CSP). The concentrated solar power system uses lens or mirrors and tracking systems to focus a large area of sunlight into a small beam. The process of conversion of light into electric current by the photovoltaics is known as the photovoltaic effect. Solar photovoltaic arrays are subjected to partial shading and rapid fluctuations of shading, in most of the portable applications. By partially shaded cells, the residual energy generated, either cannot be collected if the diode is bypassed, or impedes collection of power from the remaining fully illuminated cells, if the diode is not bypassed. The PV system is capable of maximizing the power generated by every PV cells in the PV panel. This system comprises of an array of parallel connected PV cells, a low-input voltage step up power converter and a simple bandwidth MPPT (Maximum Power Point Tracking) tracker. The MPPT operation is to adjust photovoltaic interfaces, so that the operating characteristics of the load and the photovoltaic array match at the maximum power point, no matter what the stand-alone or grid connected photovoltaic applications are.