Pv Curve Of Solar Panel
The fill factor abbreviated ff is a parameter which characterizes the non linear electrical behavior of the solar cell.
Pv curve of solar panel. There is a point on the knee of the i v curve where the maximum power output is located and this point is called the maximum power point mpp. However it is scaled based on the number of cells connected in series and in parallel. When n is the number of cells connected in series and m is the number of cells connected in parallel and i sc and v oc are values for individual cells the below i v curve is produced. The graph is called an i v curve and it refers to the module s output relationship between current i and voltage v under prevailing conditions of sunlight and temperature.
Photovoltaic cells have a complex relationship iv curve between their operating environment and the maximum power they can produce. Working of a solar cell. For the generation of electricity by the cell it must absorb the energy of the photon. How to design and install a solar pv system.
For a module or array of pv cells the shape of the i v curve does not change. The curve looks like a seated person s leg. Maximum power point and rated power of solar pv panel. The current voltage i v curve for a pv cell shows that the current is essentially constant over a range of output voltages for a specified amount of incident light energy.
The voltage and current at this maximum power point are designated as vmp and imp. The absorption depends on the energy of the photon and the band gap energy of the solar semiconductor material and it is expressed in electron volt ev.