الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Electric Energy Storage (EES) system is poised to become an important element of the electricity infrastructure of the future. Regarding to the market needs, in on-grid areas, EES is expected to solve electrical grid problems – such as excessive power fluctuation and undependable power supply – which are associated with the use of large amounts of renewable energy. In the off-grid domain, electric vehicles with batteries are the most promising technology to replace fossil fuels by electricity from renewable sources, moreover it helps in supplying isolated villages in rural areas.
The thesis studies the modeling and performance analysis of three types of EES systems, the first is Superconducting Magnetic Energy Storage (SMES). The features of SMES include relatively high-power density, fast time response, very quick full discharge time, high cycle efficiency, and long lifetime. Multi-stage design is proposed to indicate the SMES system performance and its effect on the system efficiency. The second model is Compressed Air Energy Storage (CAES) system. It is a long-lifetime modular system. It can store high amount of energy with low regeneration cost. The thesis concludes also an experimental work for modeling and implementation of a small scale CAES integrated with a PV system, moreover a case study on an isolated off grid village is studied to apply the prototype modeling on a large-scale size. The final model is Li-ion battery model, it is a high-density storage device, it is used in grid stability and UPS applications. Thesis presented four models of Li-ion battery systems, moreover a hybrid system of PV and Li-ion battery is designed to supply the isolated village. A comparative study of the three techniques of EES is proposed to indicate which one is suitable for the appropriated application. The modeling is built up using Matlab Simulink Software and the CAES prototype is carried out experimentally. The thesis is proposed to support the national grid by many EES devices, moreover it helps to supply the rural villages from renewable sources reliably.