Dynamic Analysis of Current Loops in a Wind Turbine based on Doubly fed Induction Generator

Modeling and dynamic analysis of current loop actions for doubly fed induction generators (DFIG) is presented in this paper. The stator of a variable speed DFIG WT is connected directly to the grid and the rotor through the back to back converter. To reduce the complexity, each subsystem is modeled individually to get a wind turbine model. The maximum power is extracted using the Maximum Power Point Tracker (MPPT) design and for the decoupled control of active and reactive power, the PWM method is used. The grid side converter (GSC) controls the DC bus voltage by applying a vector control approach. This paper aims to validate the theoretical model using MATLAB/Simulink software.