The simulation results will be used as a reference to compare the performance of both models under a dusty weather and also for comparing their performances by using the solar module simulator in our future work. One-diode equivalent circuit is employed in order to investigate I-V and P-V characteristics of a typical 54 W and 100W solar modules. The results are extracted and simulated using the Matlab software. The results of the PV characteristics curves are compared to the curves provided by Kyocera PV and Solara PV model datasheets. The model is able to simulate both the I-V characteristics curves and the P-V characteristics curves and it is used to study different parameters variations that can affect on the PV array performance including operating temperature and solar irradiance level. This paper presents a mathematical model for solar Photovoltaic (PV) cells and compares their performance to an existing model in renewable energy research center (RERC) at the University of Anbar-Iraq. Finally, the results showed that there was less power loss from the crystalline modules as compared to the thin film modules from angles other than the optimum one. In addition, all technologies produced maximum power at a tilt angle of 20° optimal. To distinguish between the technologies, it was deduced that thin film modules operate more efficiently than crystalline modules under shading condition. Moreover, it was observed that non-uniform shading of solar cells cause significant power output degradation in comparison to uniform shading. For partial shading, the results showed that the output current is more affected than the voltage under the surrounding conditions which were irradiance and temperature. All the data from the I-V tracer and the sensor were acquired using National Instrument myDAQ and the LabVIEW platform was used for display. The temperature was measured using the LM35 sensor. The voltage was measured through the direct connection method and the current was measured using a Hall-Effect current sensor. The three parameters which were measured during the tests were: current, voltage and temperature. During the second test the impact on the output power of the three PV technologies was determined using varying tilts. Various shading scenarios were utilized to represent distinct shading conditions. PV technologies: Polycrystalline, Amorphous Silicon and Copper Indium Selenide were used on small scale to perform the experiments. This paper aims to present the experimental performance of three different PV technologies under the effect of partial shading and varying tilt angles using a MOSFET based current-voltage (I-V) tracing method. Accordingly, the efficiency of the system should be assessed under various conditions to minimize energy wastage. Photovoltaics is widely used in industries as well as in households.
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