DIYALA JOURNAL OF ENGINEERING SCIENCES

Abstract

Baghdad is the capital city of Iraq and located at 33° 20’ 19" North latitude and 44° 23’38" East longititude. In this paper, a MATLAB model is investigated to simulate the characteristics output of a photovoltaic solar module with respect to changes in operating temperature and solar irradiance. The model is able to predict the output current and output voltage, as well as the output power. The results show that the current, voltage and output power of PV-collector increase by 80%, 17.5%, and 85.5%, respectively when the solar irradiance increases from 200 to 1000 W/m2, but the current almost unchanged and the voltage and output power decrease by 9% and 18.5% respectively when the operating temperature changes from 25 oC to 45 oC.