الفهرس 
Chapter 1: INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
As conventional energy sources near to be fully consumed soon, the interest in generating electricity from renewable energy sources increases rapidly. One of the most used methods is the photo voltaic “PV” system. To connect AC loads to a PV system, an inverter should be used to convert the DC output coming from the PV system to AC matching the load requirements. Modified sine wave “MSW” inverter is the most used type because of its low cost. The problem of using MSW inverters is the high “THD” ratio in its output. This high THD ratio affects on loads performance. On the other hand, the load types affect the MSW inverter performance. The object of this thesis is to: Study the effect of different load types on the MSW inverter performance. Reduce the THD ratio level in the MSW inverter output by using different types of harmonic filters. Different PV system types are classified. Various PV system component types are explained. Inverter designing principles are discussed. Harmonics breeders are illustrated. Harmonic effects on loads performance are discussed. Harmonic treatment methods are explained. Simulation of the PV system is described using MATLAB/SIMULINK. Simulation models for PV array, charge controller, battery and inverter are presented. The experimental PV system setup is implemented. Various load types are connected to both theoretical and experimental systems. Both theoretical and experimental waveforms are presented. A comparison between theoretical and experimental system THD ratios is made. Various harmonic filters classification methods are discussed. A comparison between all harmonic filter types is presented. Different low pass filter types are connected to the simulation system. All theoretical waveforms when connecting different filter types to the simulation model are presented. A comparison between THD ratios for the theoretical system when connecting different filter types to it is illustrated. Finally, recommendations for load types which can work correctly with MSW inverters are presented.