Modeling, Algorithm Control And Simulation Of Variable-Speed Doubly-Fed Induction Generator In Grid Connected Operation

The paper presents the modeling, computer simulation's results of a grid connected to a doubly fed induction generator (DFIG) at variable speed (higher, lower and synchronous speed) and give to the grid only active power. The stator windings machine is directly connected to the grid, the rotor winding machine is connected to the grid via slip-rings to a three-phase converter and made in the form of two back-to-back inverter and DC-link. The problems of synthesis of control systems that implement the principle of vector control are considered. A model of these control systems in the program MATLAB/Simulink is created. The models developed and results obtained provide information and method control for the development of DFIG generating systems.