الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
The wind energy conversion system (WECS) concept has been introduced into this thesis. Fossil and nuclear power plants have lately been supplanted by wind turbines as a practical substitute for generating electrical energy due to their finite reserves and unfavorable environmental effects. To maximize power extraction, the major goal of this thesis is to introduce advanced control strategies for variable speed wind turbines.
The wind turbine that is being suggested is one with a horizontal axis. Fixed-speed wind turbines (FSWT) and variable-speed wind turbines (VSWT) are the two main forms of wind turbines. Fixed-speed generators are more commonly found in wind turbines since they are less expensive and provide the flexibility to connect directly to the grid at a particular frequency. Because of fixed-speed generators were used, wind turbines must run at a specific speed. The system’s simplicity is one of FSWT’s advantages. However, it has the drawback of limiting rotor speed, which prevents the turbine from operating at maximum efficiency at all wind speeds. A variable wind speed turbine produces more energy at low wind speeds than a constant wind speed turbine because it is designed to run at a rotor speed proportionate to the wind speed below its rated wind speed. Since then, the wind turbine industry has switched to variable-speed wind turbines that can produce the most electricity below their rated capacity by synchronizing the speed of their blade tips with the wind’s current velocity to maximize their aerodynamic efficiency.