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Innovative PID-GA MPPT Controller for Extraction of Maximum Power From Variable Wind Turbine DOI:10.15199/48.2019.08.26

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The growing demand of energy and the successive oil shocks since the 70s have demonstrated the economic and geopolitical risks of energy production based on the exploitation of fossil fuels, whose reserves are unevenly distributed and exhaustible. Renewable energy is the energy comes from natural resources such solar energy, wind, rain, tides, geothermal heat and various forms of biomass .These resources are renewable and can be naturally replenished continuously [1-3]. Therefore, development of new forms of energy sources must take a huge consideration as solution in order to cover the future demands and the huge disturbances. Wind energy source is regarded as one of the most important renewable energy source; it can be used today in many applications [4]. Due to previous, many countries have made great progress in wind power technology such as Denmark which produces 40% of its electricity from wind, and at least 83 other countries around the world are using wind power to supply their electricity grids. The global wind power capacity expanded 16% to 369,553 MW. As shown in fig.1.Although several advantages of wind turbine, its random nature of wind and nonlinear characteristic (Power-speed) are the main drawbacks. Therefore, the wind turbine system must be designed to operate at their maximum power for different conditions. So over the last few decades, considerable progress has been made in the MPPT techniques and consequently many Maximum Power Point Tracking (MPPT) methods have been developed [6-10 ]. Fig.1. Global wind power cumulative capacity [5] The doubly feed induction generator is widely used in variable speed wind turbine systems owing to their ability to maximize wind power extraction and to their capability to fulfill the basic technical requirements set by the system operators and contribute to power system security [11-12]. Usually, a DFIG wind turbine is shown in Figure 2. Fig.2. Wind Turbine System A lo[...]

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