Wind turbine with pitch controller

Wind turbine with at least one rotor blade, the blade pitch is adjustable via a Bladeinstellwinkel controller, and with a generator-inverter unit, wherein the at least one electrical variable is adjustable via an inverter controller, the wind turbine has a drive train, at the front end of a rotor with the at least one rotor blade is arranged and which opens into the generator-inverter unit, wherein A first speed detecting unit is disposed on the driveline near the front end and a second speed detecting unit is disposed on the driveline near the generator inverter unit, wherein • the measured speed nred the first speed detection unit on the Blateinstellwinkel controller and the measured speed of the second speed detection unit to the inverter controller is applied in each case as input variables for the controller.