PERFORMANCE ANALYSIS of DIFFERENT SOLAR TRACKING SYSTEMS for OFF-GRID PHOTOVOLTAIC POWER SYSTEM in BİLECİK, TURKEY USING PVSYST SOFTWARE

Abstract

It is planned to install an off-grid photovoltaic system of 550Wp to meet the energy needs of the energy measurement laboratory at Bilecik Şeyh Edebali University in Bilecik, Turkey. In this study, the performance of different solar tracking systems in the off-grid photovoltaic system that will be installed in Bilecik, was compared. Monthly available solar energy, E_missing, y_a, y_r, y_f, 〖 P〗_r, 〖 l〗_a and 〖 l〗_s were compared in analysis of different solar tracking systems. The analyzed solar tracking systems are fixed tilted, seasonal tilted, horizontal axis, vertical axis and double axis. PVsyst 7.2 is widely used simulation software for analyzing the efficiency of photovoltaic systems and optimizing system design. Monthly average irradiation and panel temperature data used for analysis are obtained from PVsyst database. The minimum available energy and the maximum missing energy in the fixed tilted tracking with tilt angle of 40° and an azimuth angle of 0°, are 764.77 kWh/y and 93.36 kWh/y respectively. The maximum available solar energy and the minimum lost energy in the double axis tracking system are 1049.9 kWh/y and 57.03 kWh/y in July respectively. The highest average monthly performance ratio is 0.778 for the fixed axis system and the lowest is 0.558 for the double axis system. The results of this study show the performance analysis of the off-grid photovoltaic systems power generation, and can serve for the successful development of the photovoltaic system in real application situation.

Keywords

• Solar tracking systems
• Off-grid PV system
• PVsyst software
• Performance analysis

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