Vestas Wind Systems A/s

David Steele

Keld Hammerum

Lars Rohrmann Andersen

Jens Steen Krogh

Tobias Gybel Hovgaard

Paw Rosenvard

Kristian Kiib

Martin Møller Sørensen

Karl Axel Pétursson

Kenneth Tougaard Simonsen

Jesper Holm

Henrik Møller Ravn

Arne Gormsen

Peter Delgado Grove

Peter Gjellerup Schiønning

Rolf Kiilerich Andersen

Martin Møller SØRENSEN

A control network for a wind turbine system, the wind turbine system comprising multiple rotor-nacelle assemblies mounted on a support structure, the control network comprising: a respective local network associated with each rotor-nacelle assembly, each local network comprising multiple nodes; a central network that is connected to each local network, the central network comprising multiple nodes; and a synchronization device that synchronizes data transmission throughout the control network.

Network for multi-rotor wind turbine arrangement

A method of providing safety configuration parameters for a wind turbine is provided. The method comprises receiving a safety configuration file at a location of the wind turbine, and comparing a turbine ID associated with the safety configuration file to a turbine ID of the wind turbine stored at the location of the wind turbine. A tamper check is performed on the safety configuration file to determine if data in the safety configuration file has been modified. If the turbine ID associated with the safety configuration file matches the turbine ID of the wind turbine, and if the tamper check determines that the data has not been modified, a safety configuration parameter associated with a safety system of the wind turbine is extracted from the file and stored.

Providing safety configuration parameters for a wind turbine

A wind turbine comprising: a tower; a first arm extending from the tower; a first rotor-nacelle assembly disposed on the first arm; a first movement sensor disposed on the first arm or on the first rotor-nacelle assembly and arranged to generate first movement data based on movement of the first arm or of the first rotor-nacelle assembly; a second arm extending from the tower; a second rotor-nacelle assembly disposed on the second arm; a second movement sensor disposed on the second arm or on the second rotor-nacelle assembly and arranged to generate second movement data based on movement of the second arm or of the second rotor-nacelle assembly; and a control system coupled to the first and the second movement sensors and arranged to receive and to process the first and second movement data; wherein the control system is arranged to determine an oscillation characteristic of the wind turbine from the first and the second movement data.

Wind turbine oscillation detection

The wind turbine comprises at least one controller arranged to control a function of the wind turbine, and a data storage unit arranged to store controller specific data for the at least one controller, where the data storage unit is associated with the at least one controller to enable communication of the controller specific data between the data storage unit and the at least one controller. The method comprises detecting a connection between a programming enabling key and a connection interface dependent on a presence of the programming enabling key in proximity of the connection interface, initiating a programming mode wherein a control unit is enabled to receive controller specific data or wind turbine specific data from which the controller specific data can be determined, and obtaining the controller specific data or the wind turbine specific data via a manual action or via a trusted data source.

Configuration of wind turbine controllers

Embodiments herein describe validating an emergency stop signal before activating a brake within a wind turbine. The emergency stop signal is received from a control node of a plurality of control nodes distributed throughout the wind turbine, and the emergency stop signal indicates that the wind turbine should be shut down. The wind turbine is shut down by transmitting a shutdown signal to the plurality of control nodes. Upon determining there is no indication a person is present within the wind turbine, the emergency stop signal is validated. Additionally, upon determining the emergency stop signal is valid, a brake within the wind turbine is activated to bring the rotor to a stop.

Protection of a brake in a wind turbine

A wind turbine generator controller is described. The controller comprises switching circuitry, for selectively activating and deactivating one or more transducer circuits, and overcurrent detection circuitry, for detecting an overcurrent state in relation to one or more of the transducer circuits. The switching circuitry is responsive to the detection on an overcurrent state to selectively deactivate one or more of the transducer circuits.

Wind turbine generator controller and method

The present invention relates to control of wind turbines based on predicted operational trajectories. A control system for a wind turbine is described where a main controller calculating one or more predicted operational trajectories and a safety controller validates at least one of the one or more predicted operational trajectories. The control system controls the wind turbine with the predicted control trajectory if the validation is valid, and controls the wind turbine with a safe-mode control trajectory if the validation is invalid. In an embodiment, the main controller is implemented as a receding horizon controller, e.g. in the form of a model predictive controller (MPC).

Control of a wind turbine based on operational trajectory validation

To safely operate a wind turbine, a control system may determine a current state of the wind turbine and identify whether the state is within an operational envelope. Based on measured sensor data, the control system may calculate the current state of the turbine in a multi-dimensional space where each axis of the multi-dimensional space correlates to one of the measured parameters. The boundary of the operational envelope may define a region of the multi-dimensional space where the wind turbine is behaving in a safe manner. A safety system may determine if the state determined by the control system is accurate. If so, the safety system determines whether the current state is within the operational envelope. If the state is outside the envelope, the wind turbine may switch to a safe state during which the turbine may be decoupled from the utility grid or the rotor is stopped.

Safety system for a wind turbine

The present invention relates to methods, apparatus and computer program products for controlling a wind turbine that comprises a nacelle and one or more turbine blades to reduce or prevent edgewise vibrations building up on the one or more turbine blades. It is identifiedwhether the nacelle is unable to yaw to an upwind position and initiating a corrective actionto prevent edgewise vibrations building up on the one or more turbine blades if the nacelle is unable to yaw to an upwind position.

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Skanderborg, Denmark

David Steele