A wind turbine blade comprising: an aerodynamic shell body with a suction side shell part and a pressure side shell part that extends in a longitudinal direction between a root and a tip and in a transverse direction between a leading edge and a trailing edge, and an electro-thermal system for mitigating ice formation on the wind turbine blade, the electro-thermal system comprising: a heating layer comprising electrically conductive fibres arranged to extend substantially in a longitudinal section of the aerodynamic shell body, wherein the electrically conductive fibres of the heating layer are configured for, upon receiving electrical power from a power cable, supplying resistive heating to an exterior side of the wind turbine blade so as to mitigate ice formation on the wind turbine blade; a metallic lightning protection layer arranged exteriorly to and overlapping the heating layer; and a down conductor being electrically connected to the metallic lightning protection layer so as to conduct a lightning strike current from the metallic lightning protection layer to the first end of the down conductor; wherein the heating layer and the metallic lightning protection layer are embedded in and co-infused with the aerodynamic shell body.

An auxiliary power supply arrangement of a wind turbine is provided, including a standby power supply configured to cover the average power requirements of auxiliary devices of the wind turbine; and an energy storage unit, which energy storage unit is configured to cover transient power requirements of the auxiliary devices and/or to supplement the standby power supply in covering the transient power requirements of the auxiliary devices. Also provided is a wind turbine including such an auxiliary power supply arrangement adapted to supply power to auxiliary devices of the wind turbine during an off-grid state of the wind turbine; and a method of operating such a wind turbine.

A wind turbine blade including two electrically conductive spar caps, two lightning down conductor arrangements, and a further electrical conductor, wherein the spar caps and the lightning down conductor arrangements extend along a spanwise direction of the blade at least between a root-side end portion and a tip-side end portion of the blade, wherein each of the spar caps is electrically connected to only one of the lightning down conductor arrangements within a section of the blade between the root-side end portion and the tip-side end portion, wherein the further electrical conductor is electrically connected within the section to only one of the spar caps and/or to only one of the lightning down conductor arrangements at one or more connection positions is provided.

A pitch energy module comprising one or more ultracapacitors storing electrical energy for a wind turbine emergency pitch energy event. The pitch energy module replaces at least one battery within a battery housing of a wind turbine and interfaces with the existing battery wiring harness to communicate with a control system of the wind turbine. The pitch energy module is installed without further modification to the battery housing or the battery wiring harness.

An offshore wind turbine with anti-accumulation of aquatic organisms, comprising: a base with an interior space, the base being made of conductive material; a tower incorporated above the base; a nacelle, connected to the tower; a plurality of blades, each interconnected with the nacelle; and a power supply system electrically connected to the base and disposed within the interior space, the power supply system being used to provide electrical energy to the base to energize the surface of the base to form an electric field.

The present application discloses a supercomputing center system, which includes a wind-powered vessel, and a damping device, at least one supercomputing device, a control device, and a wind power generation device that are arranged on the hull of the wind-powered vessel. The damping device is configured to maintain the stability of the hull; the supercomputing device is configured to perform operations; the control device controls the wind power generation device to generate power and adjusts the angles of the damping device based on real-time sea condition information; and the wind power generation device supplies power to the supercomputing device, the damping device, and the control device.

According to an embodiment, the system for a wind turbine includes a first component and a second component. The first component and the second component are arranged rotatable relative to each other with the help of a bearing. The system further includes a first electrical device coupled to the first component and a second electrical device coupled to the second component. Moreover, the system includes an electrical connection between the first electrical device and the second electrical device as well as a filter element coupled to the electrical connection. The filter element is configured to at least partially attenuate high-frequency electrical signals in the electrical connection.

A system and method are provided for controlling a wind farm during low wind speeds. Accordingly, the farm controller designates at least one of the plurality of wind turbines of the wind farm as a designated turbine. The designated turbine is operating in a full auxiliary mode when the speed of the wind acting on the wind farm is below a wind speed threshold. The remaining wind turbines are operated in a reduced auxiliary mode. The reduced auxiliary mode includes the disabling of at least one of pitching and yawing of the remaining wind turbines. When a power output for the designated wind turbine exceeds a power threshold, the farm controller directs at least one group of the remaining wind turbines to transition from the reduced auxiliary mode to the full auxiliary mode. During certain grid conditions, the transition between auxiliary modes may be delayed.

A method of controlling an operation of energy storage systems of a wind park is provided. The wind park includes a plurality of energy storage systems each of which is associated with a wind turbine comprised by the wind park. Further, each of the plural energy storage systems is configured to be operable to provide electrical energy to an auxiliary system of the associated wind turbine. The method includes obtaining for each of the energy storage systems storage system state information indicating an availability of the energy storage system to store and/or provide electrical energy and operating the plural energy storage systems as a combined energy storage system based on the obtained storage system state information. The method further includes controlling the providing of electrical energy from the combined energy storage system and/or the storing of electrical energy in the combined energy storage system.

A method of controlling a wind turbine is provided including a generator system, an energy storage system and auxiliary equipment, the method including, in particular during a low wind condition: controlling the generator system in order to provide power from the generator system to the auxiliary equipment, in particular such that a rotor speed does not decrease; controlling the energy storage system in order to provide power from the energy storage system to the auxiliary equipment, if required to meet a power requirement of the auxiliary equipment; in particular keeping the wind turbine in operation.