Um estudo das características dinâmicas elétrica e mecânica de um gerador de indução duplamente alimentado acoplado à rede elétrica

This work is carried out a detailed study of the electrical and mechanical behavior of a doubly fed induction machine that operates as wind generator (DFIG), when it is faced with disturbances from both the grid as wind variations. The dynamic analysis becomes closer to the wind turbine connection to a three-phase electrical network containing several bars. The wind turbine has a classical control system, commonly found in the literature, which is to use PI controllers. From the junction of the control system, the power grid model and the turbine model, serial information will be analyzed. The way the system is designed makes possible, simply, changes of parameters and characteristics of the systems, making it possible to perform simulation of many different wind turbines. By the representation adopted of the electrical grid, it was possible to simulate different types of disturbances, enabling a detailed analysis of the system response in front of the disturbances