Doubly Fed Induction Machine in The Wind Mill for Wind Power Generation

The paper prescribes that wound rotor induction machine may have the stator and rotor winding connected to separate ac sources having different frequencies. They are said to be doubly fed machines used to capture wind energy from wind flow through driving of the wind turbines for electric power generation whereas sub-synchronous operation is more efficient than supper synchronous speed of Induction machine for wind power harvesting and generation. So, proportional operational principle of this asynchronous generator integrates with wind power generation as objective of the paper