Behavior improvement of wind turbines with DFIG by a new fractional-order control strategy during steady state and fault conditions

This paper is concerned with the analysis and improvement of the output behavior of wind turbines with DFIG by using a new fractional-order control strategy. A doubly fed induction generator, an ac/dc/ac back to back power electronic converter, a fractional-order and a classic control system for comparison have been considered for the wind turbine. The system has been studied for both steady state and fault conditions. A reactive power compensator has also been used during the grid fault for more analysis of the behavior. Conclusions have been drawn at the end of the paper for output parameters of the wind turbine using MATLAB/Simulink. Results show a better operation when using fractional-order control system.