Studying, Simulating and comparing Control Methods of Doubly Fed Induction Generator

The electrical energy generation from wind is done by several models of wind turbines with different generators, including wind turbines with doubly fed induction generators (DFIG). Due to its features and benefits, this type of wind turbine is mostly used and manufacturers have tended to the production of this type of turbine. In recent years, various control techniques as a definitive control solution for AC induction drives have been proposed. For this reason, in this paper, two control techniques are studied to control the doubly fed induction generator and the potential benefits of direct power control and fuzzy strategies are expressed. In this regard, the latest technologies in drivers of the doubly fed induction machine have been reported. In addition to controlling meet the main goals and according to the conditions, proper control model is selected. In this paper, both control methods, the direct power control and improved direct power control with fuzzy logics, are implemented based on stator flux oriented control requirements. Nevertheless the simulation is developed in Matlab/Simulink using accurate generator parameters.

doubly-fed induction generator; back to back converterng; direct power control; Fuzzy control.