الفهرس 
Issue of leakage currentOnly 14 pages are availabe for public view
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Abstract
With the reduction of available fossil fuels, the research in the area of renewable energy systems has been exponentially innovated in order to provide effective solar power solutions. The main objective of this thesis is increasing the efficiency and reduce the Levelized Cost Of the Electricity (LCOE) of the output power for the PV inverters. This goal has been achieved by determining the optimum inclination angle of photovoice panels during summer and winter and defined the optimum values of LCL output filter of PV inverter. Furthermore, provided a comparison between the three types of PV panels.
A case study was developed based on a real PV system which installed in Heliopolis University for Sustainable Development (HUSD). This system consists of three different modules (Mono-crystalline, Poly-crystalline, and Thin film), where each type is connected to an inverter with output power 1.5 KW. The adjusting results revealed that the suitable inclination angle for both summer and winter seasons is 30o for the three investigated PV modules. Additionally, the Thin Film PV panels found to be the most efficient PV type among the installed modules. Grid-connected inverters were utilized with LCL output filter to attenuate the switching harmonics generated from Pulse- width modulations (PWM).
The optimum design of LCL filter was calculated to minimize the LCOEO using the Genetic Algorithm (GA) and the Water Cycle Algorithm (WCA) techniques. The comparison between these techniques indicates that the WCA has minimized the LCOE by 9% - 45% than the GA during a one-year test, while the two years test shows a reduction by 5% to 26.6%. The experiments results discovered that the inverter which connected to Monocrystalline modules is probably the best replacement for each all types of inverters in case of emergency failure.