الفهرس 
Chapter 1 IntroductionOnly 14 pages are availabe for public view
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Abstract
Renewable energy systems are the new development that is leading the world. Despite the high costs of equipment for these systems, they can be covered by the clean energy generated from them, which is considered environmentally friendly. It is considered a lower cost when compared to diesel generators that run on fossil fuels and pollute the environment. Especially in areas that do not depend on electric power sources, as well as in agricultural areas that need irrigation equipment. Solar photovoltaic energy systems are considered one of the best electrical energy generating systems that enjoy high solar energy throughout the year. These systems are distinguished by their ability to store energy at times that determine the load. Ordinary storage batteries used in cars are the best storage batteries for the high depth of discharge that characterizes them. The maximum electrical energy generated by photovoltaic solar cells can be obtained by studying the electrical performance characteristics. The maximum generated electrical energy can be obtained by using a highly efficient guiding system for the solar cell system used. Thus, it is possible to work out a guiding strategy for the photovoltaic solar cell system with high efficiency. Egypt is one of the countries that enjoys high solar energy throughout the year. The most important solar power plants established in Egypt is the solar energy system installed in the city of Aswan. The presented study, selected photovoltaic solar panels available in the Egyptian market, the maximum output power of which is 435 watts. The electrical performance of the photovoltaic system was studied and analyzed during the summer and at a temperature of 35 degrees Celsius. The main objective of studying this system is to benefit from the electrical energy derived from it from operating the loads in the solar energy plant, Faculty of Engineering - Mansoura University. Through the presented study, two methods were used to design photovoltaic solar energy systems. The total cost of the solar photovoltaic system was evaluated. And from the presented thesis, an innovative method for DC inverters was proposed, which raises the generated voltage to the required voltage. This method is characterized by that it does not require a high cost and is distinguished from traditional lift transformers by not having high input currents. Thus, we find that the input to the coil is the same as the current feeding the load. We find that the process of charging the files is carried out by connecting the files in parallel with the source through a unified file for each file. As for the discharge, the coils are connected in series to feed the load.