الفهرس 
ContentsOnly 14 pages are availabe for public view
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Abstract
The electricity that is produced from solar arrays depends on weather conditions, it is important to search for improve the power output which is affected by this condition where Concentration Photovoltaic (CPV) system provides, an effective way to increase the efficiency of traditional PV systems. This is because the Concentration Photovoltaic (CPV) provides two advantages that is low-cost electrical power generation and reducing semiconducting PV material used when uses less surface area. This is achieved by use optic devices such as Fresnel lens, parabolic troughs dishes, V-trough mirrors, which give the concentration ratio, lead to increased radiation and temperature. In case of high concentration ratio, the system is producing both electric and thermal energy and recovering thermal energy at high temperature by forced cooling system that uses water, for example this is known as Hybrid Concentrated Photovoltaic/Thermal System (CPV/T). This thesis presents a model and simulation of CPV at low concentration ratio compared with the traditional PV without cooling system. Also presents a modeling and simulation of CPV/T systems. It uses the MATLAB program to build the CPV/T. It includes modeling of the reflective optics with parabolic mirror concentrator and the triple-junction cells (InGaP/InGas/Ge) assembled with a dual axis tracker. An active cooling system of the photovoltaic cells is considered. The model adopts a mathematical approach in order to simulate and investigate the cell characterization curves including module electric and thermal efficiency, thermal and electric energy provided by cell and module, and cooling fluid temperatures. The model works for different time levels (daily) in terms of direct normal irradiance measured practically.