Evaluation of the Inertial Response of Variable Speed Wind Turbines Based on DFIG using Backstepping for a Frequency Control

In this paper, we are interested in the study of a DFIG based WECS controlled by the Backstepping as well as its participation in the grid frequency adjustment. The variable speed wind turbine based on DFIG can't participate in frequency setting when a fault occurs due to the decoupling between the rotation speed and the grid frequency. This decoupling is due to the grid side converter and the rotor side converter. , we propose In this paper to study the participation of this type of turbine in the frequency adjustment using the synthetic inertial strategy based on the kinetic energy of the rotating masses of the conversion system. We will begin by studying the impact of a frequency drop on the DFIG characteristics controlled by the Backstepping. Then we will implement the synthetic inertia controller allowing the DFIG to act in frequency default. Finally, we will end with the simulation of the different parts using the Matlab / Simulink environment.