The Intensity Dependency of the Series Resistance and other Parameters of a Photovoltaic Silicon Solar Cell in Relation to its Performance

M.K.El-Adawi; M.M.El-Nahass; A.S.Farid; S.A.Shalaby; N.A.Hegab

Volume : IX, Issue : IV, April - 2019

The Intensity Dependency of the Series Resistance and other Parameters of a Photovoltaic Silicon Solar Cell in Relation to its Performance

M. K. El Adawi, M. M. El Nahass, A. S. Farid, S. A. Shalaby, N. A. Hegab

Abstract :

Measurements of global solar irradiance on a horizontal surface is made and compared with a published prediction model .The parameters of an amorphous silicon solar cell are extracted from a set of irradiated current–voltage characteristic curves. I–V characteristic curves obtained at different illumination levels. Two points–single I–V curve (EL–Adawi) method is considered to estimate the series resistance of the cell .The heat balance equation is solved to determine the cell temperature. The functional temperature and intensity level dependency of the cell parameters are revealed. Computations to reveal the variation of the cell efficiency along the solar day as an illustrative example is also given. It is revealed that the parameters and the efficiency are temperature dependent and vary with the intensity of solar insulation with different rates. Cooling condition to get higher efficiency is recommended