Horizontal axis wind turbine

Wind turbine control system and apparatus

Blade control system

Yaw assembly for a rotatable system and method of assembling the same

Method and apparatus for controlling acoustic emissions of a wind turbine

System and method for controlling wind turbine actuation

Systems and methods for testing a wind turbine pitch control system

Method and system for controlling a wind turbine

Method and apparatus for controlling the tip speed of a blade of a wind turbine

Wind energy plant with a central control device and a control unit in the rotor and method for the operation of such a wind energy plant

Method and system for operating a wind turbine generator

Adaptive adjustment of the blade pitch angle of a wind turbine

System and method for controlling a wind turbine during loss of grid power and changing wind conditions

Method for operating a wind turbine, a wind turbine and use of the method

Method and apparatus for measuring air flow condition at a wind turbine blade

System and method for trip event data acquisition and wind turbine incorporating same

Method and system for determining an imbalance of a wind turbine rotor

Systems and methods involving wind turbine towers for power applications

Wind plant and method of initiating braking actions in different operating modes

Variable tip speed ratio tracking control for wind turbines

Wind energy plant with pitch controller

Method for the operation of a wind energy plant

Method of maintaining wind turbine components operational and a turbine comprising components suitable for operational maintenace

Speed controlled pitch system

Methods for controlling a wind turbine connected to the utility grid, wind turbine and wind park

Wind turbine, wind turbine controller and method for controlling a wind turbine

Blade pitch driving apparatus for wind driven generator

Apparatus and method for reducing asymmetric rotor loads in wind turbines during shutdown

Method for the operation of a wind energy plant

Method of controlling a wind energy system and wind speed sensor free wind energy system

METHOD OF CONTROLLING A WINDMILL, ESPECIALLY IN STAND-ALONE OPERATION AND A WINDMILL

Method of controlling the pitch velocity of a wind turbine blade and control system therefore

Power loss reduction in turbulent wind for a wind turbine using localized sensing and control

Methods and apparatus to facilitate lubrication of components

Wind turbine and operating method thereof

Variable speed wind power generation system

Method for controlling a wind turbine and corresponding wind turbine

Electric power generation system

Windpark turbine control system and method for wind condition estimation and performance optimization

Method and apparatus for reducing rotor blade deflections, loads, and/or peak rotational speed

System and method for compensating for rotor imbalance in a wind turbine

Vertical axis wind turbine having vertical rotor apparatus

Ultracapacitor pitch energy module

Ultracapacitor pitch energy module

Methods and systems for helicopter rotor blade balancing