Evaluation of Adaptive Backstepping Control Applied to DFIG Wind System Used on the Real Wind Profile of the Dakhla-Morocco City

Abstract

The conception of a control strategy of Doubly-Fed Induction Generator (DFIG) for providing a high quality of energy, without harmonic accumulations, to the electric network is a real challenge because of the no-linearity of the system and the variable wind speed. In this work, two commands based on two technics have been developed and then tested in order to control the system and the grid powers, respectively. Note that the main purpose of the control laws is to optimize the extraction of the wind energy in a real context and to push the DFIG working properly with the best performance in both static and dynamic modes. Therefore, the dynamic model turbine has been presented in this paper, also the FOC (Field Oriented Control) and the adaptive Backstepping commands are highlighted. Matlab/Simulink simulations analysis, with real parameters of the turbine and real wind profile of Dakhla-Morocco city, confirm the high accuracy of the adaptive Backstepping command, based on the Lyapunov stability technique, with a total harmonic distortion THD ~0.16%.