Method for controlling a wind farm under turbulent wind conditions

A method for controlling wind turbines of a wind farm comprising a plurality of wind turbines, the wind farm being positioned at a site which includes one or more turbulence generating structures, the method comprising:

• detecting a wind direction at the site of the wind farm;
• identifying one or more upstream wind turbines and one or more downstream wind turbines, based on the detected wind direction, where each of the upstream wind turbines is arranged in front of one or more of the downstream wind turbines, as seen in the wind direction;
• detecting that turbulent wind conditions are occurring, based on measurements performed by the wind turbines of the wind farm;
• in response to determining that the turbulent wind conditions are occurring, switching a first control scheme to a second control scheme, wherein implementing the first control scheme comprises controlling at least one of the one or more downstream wind turbines based on measurements performed by at least one of the one or more upstream wind turbines, and wherein implementing the second control scheme comprises:
• controlling at least one of the upstream wind turbines based on measurements performed by at least one wind turbine which is a downstream wind turbine relative to the upstream wind turbine, wherein controlling at least one of the upstream wind turbines comprises:
• derating the upstream wind turbine in the case that a wind speed measured by the at least one downstream wind turbine exceeds a predefined first threshold value;
• and
• stopping the upstream wind turbine in the case that a wind speed measured by the at least one downstream wind turbine exceeds a predefined second threshold value.

A method for controlling wind turbines of a wind farm comprising a plurality of wind turbines, the wind farm being positioned at a site which includes one or more turbulence generating structures, the method comprising:

• detecting a wind direction at the site of the wind farm;
• identifying one or more upstream wind turbines and one or more downstream wind turbines, based on the detected wind direction, where each of the upstream wind turbines is arranged in front of one or more of the downstream wind turbines, as seen in the wind direction;
• detecting that turbulent wind conditions are occurring, based on measurements performed by the wind turbines of the wind farm;
• and
• in response to the one or more turbulence generating structures generating additional turbulence so as to have an effect that variations in incoming wind reach one of the one or more downstream wind turbines before reaching one of the one or more upstream wind turbines, as seen in a direction of the incoming wind, controlling at least one of the upstream wind turbines based on measurements performed by at least one wind turbine which is a downstream wind turbine relative to the upstream wind turbine.