الفهرس 
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Abstract
This thesis introduces a complete study and investigation of Photovoltaic
Power System, PVPS interconnected with Wind Turbine Generator,
WTG. Firstly the optimum design of WTG/PV/BS Hybrid Electric Power
System (HEPS) has been determined. Secondly, two interconnection
strategies have been proposed. The first strategy is to interface PVPS with
WTG through a DC Bus-Bar. The second strategy is to interface them
through an AC Bus-Bar. The effect of each interconnected strategy on the
reliability has been analyzed in detailed. On the other hand the influence
of each strategy on the total harmonic distortion has been investigated.
This study has been done by using a new proposed computerized
methodology and simulation. A case study taken to apply these proposed
methodology. This design including the optimum design and performance
of WTG/PV/BS HEPS, which used to feed a load demand. The cost and
reliability have been investigated under different conditions of
Photovoltaic penetration level (PELV) and WTG penetration level
(PELw), for WTG/PV/BS HEPS. Then the most economical WTG/PV/BS
HEPS has been determined. Also the thesis presents the design of a
Power Conditioning Unit (PCU) to interface the Photovoltaic Power
System with a Wind Turbine Generator System as a Hybrid Electric
power System. The proposed PCU based on 6-pulse three-phase inverter
using Sinusoidal-Pulse-Width-Modulation (SPWM) and Space-Vector-
Pulse-Width-Modulation (SVPWM). On the other hand this thesis
introduces a proposed converter designed to be used as an interface
between WTG and Photovoltaic system at DC Bus-Bar.