ESTIMATION OF PARAMETERS FOR A MODEL OF POLYCRYSTALLINE SOLAR CELLS

Abstract

In many countries of the world the main factor for increasing energy potential and saving environment is applying non-conventional energy. Renewable energy is mostly connected with solar radiation. Above all, mastering solar energy depends on technological advancement. Main goal of scientists is to increase efficiency of photoelectric converting system and decreasing its cost. The parameters are required to be correctly computed from solar cell characteristic or a set of experimental data for control of the photovoltaic (PV) system. However, experimental data or accurate characteristic data (i.e. current-voltage or I-V curve) of a PV module may not be readily available. The present paper describes calculations of solar cell parameters, based on polycrystalline silicon, using experimental and theoretical approaches. Finding appropriate circuit model parameters of solar cells is crucial for performance evaluation, control, efficiency computations and maximum power point tracking of solar PV systems. Based on the conducted review, some suggestions are provided.