Pv Curve Of Solar Panel

The curve looks like a seated person s leg.

Pv curve of solar panel.

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. Working of a solar cell. Maximum power point and rated power of solar pv panel.

Photovoltaic cells have a complex relationship iv curve between their operating environment and the maximum power they can produce. 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. 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 fill factor abbreviated ff is a parameter which characterizes the non linear electrical behavior of the solar cell.

For the generation of electricity by the cell it must absorb the energy of the photon. 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. The voltage and current at this maximum power point are designated as vmp and imp. Every model of solar panel has unique performance characteristics which can be graphically represented in a chart.

The sunlight is a group of photons having a finite amount of energy. For a module or array of pv cells the shape of the i v curve does not change.