A method for controlling loads of a wind turbine includes receiving sensor signals from one or more sensors being indicative of a movement of a nacelle of the wind turbine from a reference point. More particularly, the movement corresponds, at least, to a tilt and/or a displacement of the wind turbine tower and/or nacelle. The method also includes generating a deflection profile of the tower along its overall length from a bottom end to a top end thereof based on the sensor signals. Further, the method includes determining at least one of a thrust or a tower load of the wind turbine from the deflection profile. In addition, the method includes implementing a control action for the wind turbine based on the thrust and/or the tower load.

The already patented Madson Wind Turbine System (MWTS) embodies a wind turbine system for the collection of wind energy, compression of air (air or gas) in multi-stages to high pressure, for High PressureCompressed Air Energy Storage (HP-CAES), decompression of air in multi-stages, cooling of hot compressed air, harvesting of compression heat for heating cold decompressed air to increase volume & air flow for more efficient generation of electricity. This new invention constitutes a significant improvement of MWTS thru improved: ability to resist typhoons, cyclones & hurricanes, harvesting & directing hub area wind to the propellers, streamlining of wind for more efficient use by downstream wind turbines, harvesting of compression heat to heat decompressed cold air, simplification of equipment & construction by reducing the number of or combining the function of components, such as, the functions of transfer & regulator valves in previous inventions for lower capital & maintenance costs & greater efficiency; the introduction of new beneficial components, such as, uncloggable transfer valves; the avoidance of hazards, such as, bird strikes & nuisances, such as, flutter, pulse & vertigo and other improvements for the generation, storage and dispatch of electricity. This improvement also includes an HP-CAES Reserve Tank, constructed with Bolted Joints, such that it can be assembled quickly & cheaply without welding, de-stressing & spherical or thick plates; the elimination of, at least, one (1) built-in derrick and the development of self-regulating controls for feathering the propellers adapted to a Fan Wind Turbines instead of the conventional long aspect ratio sails (propellers).

A wind turbine is disclosed. The wind turbine may include a discoidal chassis and at least one vane disposed on the discoidal chassis. The discoidal chassis can rotate about a central axis. The discoidal chassis has a first outermost surface with a pitch angle between the central axis and another axis orthogonal to the central axis. The vane is disposed on the first outermost surface. The vane has a concave surface to assist in rotation of the discoidal chassis about the central axis by harnessing wind energy.

Provided is a trailing edge assembly of a wind turbine rotor blade, which includes a mounting portion; a flap portion flexibly connected to the mounting portion so that a flap angle subtended between the mounting portion and the flap portion can be altered; a volume adjustable chamber arranged between the mounting portion and the flap portion and realised to alter its volume between a minimum volume associated with a minimum flap angle and a maximum volume associated with a maximum flap angle; and at least one tube to face into an airflow passing over the airfoil region of the rotor blade, and an inner orifice arranged to face into the interior of the volume adjustable chamber such that an airflow between the outer orifice and the inner orifice alters the volume of the volume adjustable chamber. Embodiments of the invention further describe a wind turbine rotor blade.

Provided is a method for transmitting controlling control variables from a windfarm controller to units including at least one wind power installation at least one energy store. The method include determining first and second controlling control variable components by the windfarm controller, outputting the first controlling control variable component in a first data packet, outputting the second controlling control variable component in a second data packet, receiving the first and second data packets by a first unit, and determining a controlling control variable from the first and second controlling control variable components. The first data packet has a receiver address which is assigned to the first unit and to at least one further unit, and the second data packet has a receiver address which is assigned to at least the first unit. Provided is a windfarm controller, a wind power installation and a windfarm configured to perform the method.

A method, computer program product, and wind power plant are disclosed for controlling power production of the wind power plant comprising a plurality of wind turbine generators. The method comprises defining, based on received wind information, a wind wake zone comprising one or more first wind turbine generators of the plurality of wind turbine generators. The method further comprises increasing a reactive power production of at least one of the one or more first wind turbine generators of the wind wake zone.

A method controlling a wind turbine to avoid tonal noise production is provided. The method comprises acquiring noise data representing noise produced by a wind turbine and acquiring data from a plurality of vibration sensors positioned at different locations about the wind turbine. The method further comprises identifying a region of interest in the noise data, the region of interest being a candidate for containing tonal noise generated by the wind turbine, and identifying a vibration sensor, the data for which correlates with the noise data in the region of interest. The method further comprises determining a threshold vibration level for the identified vibration sensor, the threshold being based on the vibration level detected by the identified vibration sensor in the region of interest, and adjusting one or more wind turbine operating parameters in response to the vibration level detected by the identified vibration sensor exceeding the threshold.

A method for controlling a wind power plant including a plurality of wind turbines that provide output power through a transmission line arrangement, wherein each wind turbine in the wind power plant has a nominal power limit setting. The method comprises determining spare capacity on the transmission line arrangement; and configuring one or more of the wind turbines in dependence on the determined spare capacity, such that said wind turbines are operable to exceed their respective nominal power limit setting in order to exploit the spare capacity on the transmission line arrangement. Aspects of the invention also relate to a power plant controller configured to implement the method.

A measuring arrangement for a wind power installation for determining a thrust force of the rotor. A measuring device detects a first bending moment of the tower at a first height and a second bending moment of the tower at a second height, which is different from the first height. The first and second bending moments are in this case made up in each case of a natural moment component, a pitching moment component and a thrust force component. A thrust force determining unit determines a thrust force of the rotor based on a comparison of the at least first and second bending moments, so that the natural moment component and the pitching moment component cancel one another out.

A wind turbine with a tower and a nacelle with a nacelle housing is provided. The nacelle is placed on the tower. Further provided is a cooling flap, which is configured to close an opening in or on the area of the wind turbine to be cooled. At least one temperature-dependent passive actuator is configured to activate and open the cooling flap as a function of temperature, so as to enable a heat compensation in the area to be cooled by means of the opening. The temperature-dependent passive actuator can change its shape and/or its length without any external electrical energy as a function of temperature.