Patent ID: 9541063
Date: 2017-01-10
CPC Classifications: F03D,G05B,H02J,H02M,H02P,Y02E

Claim:
1. A wind turbine comprising: a first converter connected between an electric generator of the wind turbine and a DC link, a second converter connected between the DC link and an output of the wind turbine connected to or connectable to a utility grid, and a wind turbine controller to control at least one of an output current of the wind turbine, an output voltage of the wind turbine, a reactive output power of the wind turbine, an output voltage of the DC link and an output current of the DC link, wherein the wind turbine further comprises a communication device to receive a control signal comprising information about a number of active wind turbines in a wind park which influences an impedance of the utility grid to change a bandwidth of the wind turbine controller in accordance with the control signal to maintain stability of the wind turbine controller; and wherein the wind turbine controller having a current controller and a voltage controller wherein a proportional gain parameter and an integral gain parameter of a closed loop gain of the current controller being a function of an inductance and resistance both of which are a function of the number of active wind turbines.