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Modeling & Control of a Variable Velocity Wind Turbine Connected to a Doubly Fed Induction Generator (DFIG)


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DOI: https://doi.org/10.15866/ireme.v12i6.15410

Abstract


In order to reduce the use of fossil fuels and nuclear energy in the generation of electrical power, many countries are turning to renewable energies. The latest ones are promising and they have no negative impact on the environment. One of these renewable energies, wind power, is clean and it is among the best alternatives for the preservation of the environment. The work presented herein is devoted to a modeling and a simulation of a wind turbine system, with Matlab/Simulink, using a horizontal axis and a variable speed aero-generator, connected to a Dual Fed Induction Generator (DFIG). The principal objective of this study is to develop a numerical tool to control the wind turbine system for the best energy efficiency. In this view, two methods of control have been discussed: the Pitch control, which monitors and limits the aerodynamic power for high winds and the vector control based on the orientation of the stator flux of the generator, which controls the active and the reactive power between the machine and the grid. The results obtained show the relevance of optimizing energy transfer in the wind system. In addition, these results also show that the use of controls greatly contributes to improve the overall energy efficiency of the wind turbine system used.
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Keywords


Wind System; DFIG; Control; Renewable Energy; Wind Power

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References


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