Vestas Wind Systems A/s

Nilfisk A/s

Danfoss Drives A/s

Danfoss A/s

Carnegie Robotics, LLC

Claus Thybo

Jacob Deleuran Grunnet

Johnny Nielsen

Jes Rasmussen

Jesper Sandberg Thomsen

David LaRose

Poul Brandt Christensen

Rasmus Pedersen

David Larose

The invention provides an autonomous surface treatment vehicle, e.g. a floor cleaner, with an autonomy system navigating according to a map, a scanning sensor to detect a position of an obstacle within a scanning zone and generate a detection signal. A safety system is arranged to generate a safety stop in case the detection signal indicates an obstacle within a safety zone. The safety system can enter a special mode of operation, e.g. upon request from the autonomy system, where a special safety zone selection algorithm selects the safety zone e.g. from a special set of pre-determined safety zones. Especially, such special mode can provide safety zones with a relaxed speed limit in combination with a restricted direction limit, so as to provide a faster driving near a wall or similar known obstacle.

Autonomous surface treatment vehicle with fast wall mode

An apparatus for monitoring an ambient environment of a wind turbine is described. The apparatus comprises a cooling system comprising first and second heat exchangers, and a fluid circuit arranged to enable coolant to flow between the first and second heat exchangers. The apparatus further comprises a processor configured to: monitor one or more operational parameters of the cooling system; determine an efficiency of the cooling system based on the monitored one or more operational parameters; and calculate a liquid water content of the ambient environment based on the measured efficiency of the cooling system.

Apparatus and methods for monitoring the ambient environment of wind turbines

According to an embodiment of the present invention there is provided an apparatus for controlling a sub-system of a wind turbine. The apparatus comprises a cooling system comprising first and second heat exchangers, and a fluid circuit arranged to enable a coolant to flow between the first and second heat exchangers; and a processor. The processor is configured to: monitor one or more operational parameters of the cooling system; determine an icing risk based on the one or more operational parameters; and generate a control signal for output to the wind turbine sub-system in dependence on the determined icing risk.

Apparatus and methods for determining icing risk in wind turbines

A method for controlling a wind turbine is disclosed, the wind turbine comprising a set of wind turbine blades (), each wind turbine blade () being provided with at least one air deflector () being movable between an activated position in which it protrudes from a surface of the wind turbine blade () and a de-activated position. The occurrence of an event causing a change in operational conditions is registered, and a new operating state for the wind turbine is determined, the new operating state meeting requirements of the changed operational conditions. The air deflectors () of the wind turbine blades () and pitch angles of the wind turbines blades () are controlled in order to reach the new operating state for the wind turbine, and in such a manner that the control of the pitch angles of the wind turbine blades () is performed while taking information regarding the control of the air deflectors () into account.

Method for controlling air deflectors and pitch angles of wind turbine blades

The present disclosure relates to a control system for a wind turbine that is configured to: obtain a 3-dimensional image of at least a portion of a wind turbine blade; recognise a target feature of the wind turbine blade in the obtained image and identify the position of the target feature; and monitor the state of the wind turbine blade and/or control operation of at least one blade in dependence on the identified position of the feature.

Control system for a wind turbine

The present disclosure relates to a system for determining at least one blade state parameter of a wind turbine blade, wherein the system is configured to: obtain blade data relating to the wind turbine blade from a sensor system associated with the wind turbine blade; compare at least one reference model of at least a portion of the wind turbine blade with the blade data; identify a reference model in dependence on the comparison; and determine at least one blade state parameter in dependence on the identified reference model. The blade data may take the form of an image, for example a 3-dimensional measurement such as a point cloud representing at least a portion of the blade.

System for monitoring a wind turbine blade

A method for monitoring a rotational angle sensor on an electrical machine. It is desired to provide a method that enables fault detection at both high speeds and low speeds of the rotor. The electrical power of the machine is measured and a power value is estimated using the output signal of the rotational angle sensor, a residual being formed from the measured power and the estimated power and the time curve of the residual being monitored.

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Åbyhøj, Denmark

Claus Thybo