Abstract: A method and system of controlling operation of wind turbines is provided, the method including (a) receiving a parameter value which is based on at least one sensor signal, (b) determining a difference between the received parameter value and a predetermined value, (c) comparing the difference with a threshold value, and (d) if the difference is below the threshold value, operating the wind turbines in a first mode of operation, (e) if the difference is not below the threshold value, incrementing an alert counter, comparing the alert counter with an alert threshold value, operating the wind turbines in a second mode of operation if the alert counter is smaller than the alert threshold value or if the alert counter exceeds the second threshold value and the difference is decreasing, triggering an alarm if the alert counter exceeds the alert threshold value and the difference is not decreasing.

Abstract: A method of controlling the operation of a wind turbine is provided, wherein a control scheme is determined for the wind turbine, wherein the control scheme specifies for a future period of time at least a first operating period in which the wind turbine is operated to provide an output of electrical power to a power grid and at least one shutdown period in which the wind turbine is shut down, the shutdown period being arranged temporally after the first operating period. The wind turbine is operated in accordance with the control scheme. Determining the control scheme includes the obtaining of input data, wherein obtaining input data comprises at least monitoring operation of the wind turbine to obtain monitoring data related to the integrity of the wind turbine, and obtaining weather data indicating weather conditions, and the forecasting of two or more operating parameters.

Abstract: A method and system of controlling operation of wind turbines is provided, the method including (a) receiving a parameter value which is based on at least one sensor signal, (b) determining a difference between the received parameter value and a predetermined value, (c) comparing the difference with a threshold value, and (d) if the difference is below the threshold value, operating the wind turbines in a first mode of operation, (e) if the difference is not below the threshold value, incrementing an alert counter, comparing the alert counter with an alert threshold value, operating the wind turbines in a second mode of operation if the alert counter is smaller than the alert threshold value or if the alert counter exceeds the second threshold value and the difference is decreasing, triggering an alarm if the alert counter exceeds the alert threshold value and the difference is not decreasing.