Abstract:
This paper refers to modeling, simulation and analysis of doubly fed induction generator for wind turbines. This paper presents the modelling of DFIG based WT system and the simulation results performed for the system developed in Simulink environment of MATLAB . A gird connected wind energy generation model is developed and simulated for normal operation and for some faults in the grid. the analysis, modeling, and control of the doubly-fed induction generator (DFIG) for wind turbines. The variable speed wind turbine generator with doubly-fed induction generator (DFIG) is today widely used concept. control system of the doubly-fed induction generator wind turbine with focus on the control strategies and on active power reference value choice Different rotor current control methods are investigated with the objective of eliminating the influence of the back electromotive force (EMF), which is that of, in control terminology, a load disturbance, on the rotor current.

Keywords: Doubly-fed induction generator, wind turbine, wind energy, current control, voltage sag, power quality, simulation, MATLAB