COMPARATIVE ANALYSIS BETWEEN ACTUAL AND ESTIMATED MEASUREMENTS FOR SOLAR SYSTEM ACCORDING TO TIKRIT CLIMATE CONDITIONS

The aim of this research is to investigate the extent to which the HOMER program can be used to determine the best working conditions through which the highest level of solar power output can be obtained in the Tikrit area by analyzing and comparing the measurement results of the solar system installed on the surface of he laboratory building at the University of Tikrit with simulation results made by the HOMER program. The system consists of three solar panels made of three different types of semiconductors, pyrometers to determine the intensity of solar radiation, and electronic and electromechanical parts of the movement and control. The axis motors moves the panels in azimuth range from - 90° (east) to + 90° (west) and the elevation between 0° (horizontal) to 90° (vertical). Voltage ,current and power of photovoltaic system ,as well as the solar radiation level were measured for each position and each plate. Data measured using the MATLAB simulation program for the period from June 1 to August 29, 2016 were analysed according to the weather conditions of the city of Tikrit located along the longitude 44° east and latitude 34° north. The results of the comparison between the real measurements and the simulation results indicate that they are identical with some diffraction.