الفهرس 
Introduction &Literature SurveyOnly 14 pages are availabe for public view
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Abstract
Nowadays, all countries are challenged with environmental disaster known as global warming that threaten our well-being and existence in addition to the Lack in reserve stocks of non-renewable energies such as oil, natural gas, coal … etc. Therefore, great efforts are exerted to generate electrical power from renewable sources of energy. Among the available renewable energy sources, wind power is now the world’s fastest growing energy source and it has become one of the most rapidly expanding industries. It has also advantageous over traditional methods of energy generation in the sense that it is getting cheaper and cheaper to produce energy. Wind Energy may soon be the economical way to produce energy on large and small scales.
This thesis provides a comprehensive study of grid-tie wind energy conversion system using permanent magnet synchronous generator (PMSG). The proposed type of wind energy conversion system (WECS) is based on generating electrical power with minimum harmonics and minimum power loss. This can be achieved by using maximum power point control techniques for controlling the variable generated power of the WECS using direct AC/AC power converter instead of conventional indirect converters based AC-DC-AC converter. Also, this technique achieves the maximum injected power from the turbine for different variable wind speeds. Matrix converter is controlled by space vector pulse width modulation, which enables excellent transient response, while sinusoidal current waveforms are dominant. This is targeted to enhance the load voltage profile and to reduce the overall power loss in the electrical distribution networks.
IV
A direct matrix converter prototype is constructed for experimental verifications of the results. As a first step in experimental works, filter types are investigated and a three-phase input LC filter is constructed to eliminate the high frequency current components. Then, direct matrix converter power circuitry and gate driver circuitry are designed and constructed. To control the matrix switches, the control algorithm is implemented using a DSPACE hardware system. This digital control system controls the matrix converter switches to produce the required PWM pattern to synthesize the load input current and output voltage vectors, as well. Finally, the simulation results are tested and supported by laboratory experiments involving an R-L load.