Abstract: The invention relates to a fire extinguishing system comprising an extinguishing agent supply, a distribution system at least one spray head and at least one valve mounted between the distribution system and the at least one spray head, characterized in that the at least one valve comprises an automated actuator. The invention further relates to a method of fighting a fire using this system, comprising the following steps: a) Detecting a temperature image or a smoke image by means of the sensor or a set of sensors, b) deciding if a fire is present or a normal situation occurs, c) if in the decision in b) a fire is registered, that the extinguishing agent supply is turned on, and d) on the basis of the location and the severity of that fire, one or more spray heads are actuated by means of the automated actuators connected to the valves of the spray heads.

Abstract: The invention relates to a sprinkler test device comprising: a chamber configured to fit around a sprinkler head mounted in a sprinkler system; a drain conduit for guiding extinguishing agent to a disposal or collection container; a temperature regulator for regulating the temperature in the chamber. The invention further relates to a method for testing a sprinkler system, comprising the following steps, to be executed in any suitable order; providing a sprinkler test device as described herein above; positioning the chamber of the sprinkler test device around a first sprinkler head of a sprinkler system to be tested; and regulating the temperature around the sprinkler head for testing purposes.

Abstract: The invention relates to a fire extinguishing system comprising an extinguishing agent supply, a distribution system at least one spray head and at least one valve mounted between the distribution system and the at least one spray head, characterized in that the at least one valve comprises an automated actuator. The invention further relates to a method of fighting a fire using this system, comprising the following steps: a) Detecting a temperature image or a smoke image by means of the sensor or a set of sensors, b) deciding if a fire is present or a normal situation occurs, c) if in the decision in b) a fire is registered, that the extinguishing agent supply is turned on, and d) on the basis of the location and the severity of that fire, one or more spray heads are actuated by means of the automated actuators connected to the valves of the spray heads.

Abstract: The present subject matter is directed to a system and method for operating a wind turbine. The method includes determining an actual operating time for one or more wind turbine components at multiple power levels; determining a corresponding wind condition for each of the operating times at each power level; estimating a loading condition acting on the one or more wind turbine components at the multiple power levels and the corresponding wind conditions; estimating an accumulated fatigue life consumption of the one or more wind turbine components based at least partially on the operating times and the estimated loading conditions; and, operating the wind turbine based on the accumulated fatigue life consumption.

Abstract: A method for operating a wind turbine is described. The wind turbine includes a tower having a tower axis, and a nacelle being rotatable about the tower axis. The method includes providing a data set of one or more operational parameters of the wind turbine. The one or more operational parameters depend on the angular position of the nacelle with respect to the tower axis. The method further includes determining an angular position of the nacelle with respect to the tower axis; selecting one or more operational parameters from the data set of one or more operational parameters of the wind turbine depending on the determined angular position of the nacelle; and applying the one or more selected operational parameters to the wind turbine. Further, another method of operating a wind turbine and a wind turbine are described.

Abstract: The present subject matter is directed to a system and method for operating a wind turbine. The method includes determining an actual operating time for one or more wind turbine components at multiple power levels; determining a corresponding wind condition for each of the operating times at each power level; estimating a loading condition acting on the one or more wind turbine components at the multiple power levels and the corresponding wind conditions; estimating an accumulated fatigue life consumption of the one or more wind turbine components based at least partially on the operating times and the estimated loading conditions; and, operating the wind turbine based on the accumulated fatigue life consumption.

Abstract: A method for operating a wind turbine is described. The wind turbine includes a tower having a tower axis, and a nacelle being rotatable about the tower axis. The method includes providing a data set of one or more operational parameters of the wind turbine. The one or more operational parameters depend on the angular position of the nacelle with respect to the tower axis. The method further includes determining an angular position of the nacelle with respect to the tower axis; selecting one or more operational parameters from the data set of one or more operational parameters of the wind turbine depending on the determined angular position of the nacelle; and applying the one or more selected operational parameters to the wind turbine. Further, another method of operating a wind turbine and a wind turbine are described.

Abstract: A method for operating a wind turbine having at least one blade includes determining an ambient air operating envelope and controlling a power output of the wind turbine at least partially based on the determined ambient air operating envelope. Determining an ambient air operating envelope includes measuring at least one of an ambient air temperature, an ambient air pressure, an ambient air humidity, and wind turbine power output. The method also includes comparing at least one of a measured ambient air temperature, a measured ambient air humidity and a measured ambient air pressure to predetermined ambient air temperature, pressure and humidity values. The method further includes referencing the predetermined ambient air temperature, pressure and humidity values to at least one operational parameter of the wind turbine. The method also includes determining if an existing wind turbine power output is within a range associated with the determined ambient air operating envelope.

Abstract: A system for mitigating wake losses in a windfarm is disclosed. The system may include a first horizontal axis wind turbine configured to rotate in a first direction and a second horizontal axis wind turbine positioned adjacent to the first horizontal axis wind turbine. The second horizontal axis wind turbine configured to rotate in a second direction, wherein the first direction is opposite the second direction.

Abstract: A method for controlling a wind energy system is provided wherein the method comprises determining the effective wind speed taking into account the load on the rotor blades of said wind energy system exerted by the wind is provided. A computer-readable medium is provided that provides instructions which when executed by a computing platform cause the computing platform to perform operations wherein the operations include the method according to embodiments described herein. Further, a wind energy system having a calculation unit adapted for calculating the effective wind speed by taking into account the load on the rotor blades of said wind energy system exerted by the wind is provided. Further, a wind speed sensor free wind energy system having a generator for generating electric energy and a controller for shutting down and/or starting the electric energy generation in dependence of the wind speed is provided.

Abstract: A method for controlling a wind energy system is provided wherein the method comprises determining the effective wind speed taking into account the load on the rotor blades of said wind energy system exerted by the wind is provided. A computer-readable medium is provided that provides instructions which when executed by a computing platform cause the computing platform to perform operations wherein the operations include the method according to embodiments described herein. Further, a wind energy system having a calculation unit adapted for calculating the effective wind speed by taking into account the load on the rotor blades of said wind energy system exerted by the wind is provided. Further, a wind speed sensor free wind energy system having a generator for generating electric energy and a controller for shutting down and/or starting the electric energy generation in dependence of the wind speed is provided.

Abstract: A method for operating an off-shore wind turbine and a wind-turbine is provided. The off-shore wind turbine is at least temporarily situated in water and includes a rotor with at least one rotor blade and a pitch drive system coupled to the at least one rotor blade. The pitch drive system is adapted for pitching the at least one rotor blade, wherein the wind turbine further includes a wind turbine control. The method includes determining at least one of a water condition; in dependence of the outcome of the determining, defining peak shaver settings; and pitching the at least one rotor blade according to the peak shaver settings. Furthermore, the wind turbine has a sensor adapted for measuring one of the water current-speed, the water current direction and the water level at or close to the wind turbine.

Abstract: A method for controlling a wind energy system is provided wherein the method comprises determining the effective wind speed taking into account the load on the rotor blades of said wind energy system exerted by the wind is provided. A computer-readable medium is provided that provides instructions which when executed by a computing platform cause the computing platform to perform operations wherein the operations include the method according to embodiments described herein. Further, a wind energy system having a calculation unit adapted for calculating the effective wind speed by taking into account the load on the rotor blades of said wind energy system exerted by the wind is provided. Further, a wind speed sensor free wind energy system having a generator for generating electric energy and a controller for shutting down and/or starting the electric energy generation in dependence of the wind speed is provided.

Abstract: A method for operating an off-shore wind turbine and a wind-turbine is provided. The off-shore wind turbine is at least temporarily situated in water and includes a rotor with at least one rotor blade and a pitch drive system coupled to the at least one rotor blade. The pitch drive system is adapted for pitching the at least one rotor blade, wherein the wind turbine further includes a wind turbine control. The method includes determining at least one of a water condition; in dependence of the outcome of the determining, defining peak shaver settings; and pitching the at least one rotor blade according to the peak shaver settings. Furthermore, the wind turbine has a sensor adapted for measuring one of the water current speed, the water current direction and the water level at or close to the wind turbine.

Abstract: A method for optimizing the operation of a wind turbine is provided, the method comprising the steps of: (a) adjusting at least one control parameter of said wind turbine to a predetermined starting value; (b) measuring at least one response variable of said wind turbine and at least one further variable indicative of an ambient condition of the wind turbine; (c) repeating step (b) N times, wherein N is a predetermined integer, wherein said at least one control parameter is varied at each repetition; (d) determining a measured relation between the at least one control parameter with respect to the at least one response variable and the at least one further variable indicative of an ambient condition; (e) determining an optimized value of said at least one control parameter with respect to said response variable from said measured relation; (f) adjusting a set point of said at least one control parameter to said optimized value.

Abstract: A method for re-calibrating an anemometer of a wind turbine is provided, the method comprising the steps of obtaining pairs of measured values of wind speed and a wind-speed dependent turbine variable; comparing said measured value pairs to pairs of wind speed and the turbine variable obtained from an expected turbine variable curve of the wind turbine to determine a difference between a measured wind speed value and an expected wind speed value for a given turbine variable value; and adjusting a calibration function of said anemometer on the basis of said determined difference.

Abstract: A method for controlling a wind energy system is provided wherein the method comprises determining the effective wind speed taking into account the load on the rotor blades of said wind energy system exerted by the wind is provided. A computer-readable medium is provided that provides instructions which when executed by a computing platform cause the computing platform to perform operations wherein the operations include the method according to embodiments described herein. Further, a wind energy system having a calculation unit adapted for calculating the effective wind speed by taking into account the load on the rotor blades of said wind energy system exerted by the wind is provided. Further, a wind speed sensor free wind energy system having a generator for generating electric energy and a controller for shutting down and/or starting the electric energy generation in dependence of the wind speed is provided.

Abstract: A method for re-calibrating an anemometer of a wind turbine is provided, the method comprising the steps of obtaining pairs of measured values of wind speed and a wind-speed dependent turbine variable; comparing said measured value pairs to pairs of wind speed and the turbine variable obtained from an expected turbine variable curve of the wind turbine to determine a difference between a measured wind speed value and an expected wind speed value for a given turbine variable value; and adjusting a calibration function of said anemometer on the basis of said determined difference.

Abstract: A method for operating a wind turbine having at least one blade includes determining an ambient air operating envelope and controlling a power output of the wind turbine at least partially based on the determined ambient air operating envelope. Determining an ambient air operating envelope includes measuring at least one of an ambient air temperature, an ambient air pressure, an ambient air humidity, and wind turbine power output. The method also includes comparing at least one of a measured ambient air temperature, a measured ambient air humidity and a measured ambient air pressure to predetermined ambient air temperature, pressure and humidity values. The method further includes referencing the predetermined ambient air temperature, pressure and humidity values to at least one operational parameter of the wind turbine. The method also includes determining if an existing wind turbine power output is within a range associated with the determined ambient air operating envelope.

Abstract: A method for optimizing the operation of a wind turbine is provided, the method comprising the steps of: (a) adjusting at least one control parameter of said wind turbine to a predetermined starting value; (b) measuring at least one response variable of said wind turbine and at least one further variable indicative of an ambient condition of the wind turbine; (c) repeating step (b) N times, wherein N is a predetermined integer, wherein said at least one control parameter is varied at each repetition; (d) determining a measured relation between the at least one control parameter with respect to the at least one response variable and the at least one further variable indicative of an ambient condition; (e) determining an optimized value of said at least one control parameter with respect to said response variable from said measured relation; (f) adjusting a set point of said at least one control parameter to said optimized value.