Decoupled power control of wind turbine based on doubly-fed induction generator

Wind turbine based on doubly-fed induction generator is widely employed in exploitation and development of wind energy, because it provides favorable performances such as variable speed operation, maximal energy product tracking and flexible control of real power and reactive power. Decoupled control of real power and reactive power is essential to power plants and power systems. A novel control strategy is presented to achieve decoupled control of the wind turbine, based on nonlinear inverse system method and neural network. With this control scheme, the system is fully decoupled to two pseudo linear subsystems by inverse system method, while the control is not dependent on system parameters so that it is robust to system disturbances.