Disclosed are techniques for recovering power from remote vehicles near a landing surface. Air turbulence from a remote vehicle near a landing surface is detected and measured. When the air turbulence exceeds a threshold, a subset of landing surface components corresponding to sections of the landing surface with attached wind power generators are determined for wind power generation from the detected air turbulence. The wind power generators of the subset of landing surface components are exposed from their protective coverings, and the subset of landing surface components are reoriented towards the source of the air turbulence, tracking the remote vehicle generating the air turbulence. Power generated by the wind power generators can be stored and used to recharge remote vehicles that land at the landing surface.

The invention relates to a method for determining the energy production to be expected for a wind power installation for a forecast time period, which may be an expected annual energy production. The installation has installation components. In the method, at least one of the installation components is selected as a thermally relevant component and chronologically distributed wind speed values are specified for the forecast time period. An expected power output level of the installation is determined for one of the wind speed values. In the power output level determining step, a component temperature which is assigned to this wind speed value is taken into account by the at least one thermally relevant component. The expected power output level of the installation, which is determined for the wind speed value, is used to determine the energy production of the installation which is to be expected for the forecast time period.

The invention relates to a method for determining power set points of a power plant comprising a plurality of power generating units with at least one wind turbine generator. The determination of the power set points are based on a prioritization of the power generating units, where the power generating units are prioritized with respect to individual power levels or fatigue levels obtained for the power generating units. The prioritization is adjusted so that the adjusted prioritization depends both on the power and fatigue levels.

A method of controlling, by inertia emulation, electric power generators provided with rotational inertia and connected to the electricity grid with electric power converters includes the steps of measuring grid frequency and/or frequency over-time variation over a rated frequency value; providing a threshold value for, and comparing, the grid frequency or frequency over-time variation; and converting part of the kinetic energy of the generator rotor into electric power to provide additional supporting power to the variation of the grid frequency, wherein the additional supporting power is calculated as a function of the frequency and/or the frequency over-time variation and of a predetermined variable inertia coefficient, the additional power is supplied until the grid frequency variation is restored, and/or the injected power has fallen below a preset limit value, and the coefficient of inertia is calculated by emulating the inertial behavior of synchronous machines, and as a function of rotation velocity.

Provided is a method of determining a wind parameter value for use in a wind turbine control system, the method including (a) receiving a plurality of wind measurement signals, wherein each wind measurement signal is provided by a respective wind sensor among a plurality of wind sensors, (b) determining a set of statistical values based on the wind measurement signals, (c) calculating a weighting factor for each wind measurement signal based on the set of statistical values, and (d) calculating the wind parameter value as a weighted sum by applying the calculated weighting factors to the corresponding wind measurement signals. Further, a corresponding system and a wind turbine with such a system are provided.

The invention relates to the field of energy, in particular to devices converting wind energy into electricity. The wind energy conversion method into electrical energy consisting in that the wind energy is converted by means of receivers mounted on the casing of moving wind energy conversion modules, moving linearly along the guide belt, into movement energy of wind energy conversion modules and electric energy by means of electrical energy generating device, mounted on the casing. Wherein there is performing continuous control, depending on the external conditions of the total area of all wind energy receivers guided to the guide belt. In particular embodiments, there is performing continuous control, depending on the external conditions of setting angles of the wind energy receivers relative to the wind energy conversion modules, the movement speeds of the wind energy conversion modules, the aerodynamic profile, and the area of each wind energy receiver, for which it is preferable to use wings with a composite aerodynamic profile, including the main profile, and at least one tilt flap. Also the system for the method embodiment is claimed.

A system and method are provided for controlling a wind turbine. Accordingly, a controller of the wind turbine detects an oscillation in the power output of the wind turbine during a recovery from a transient event. In response to detecting the oscillation, a portion of the power output during a peak phase of the oscillation is stored in an energy storage device. A portion of the stored power is then discharged during a valley phase of the oscillation in order to reduce an amplitude of the oscillation of the power output that is delivered to the power grid.

A generative sensing system includes a plurality of fairings attached to a carrier via a plurality of mechanical links and further associated with a plurality of actuators in communication with a computing system and a memory in communication with the computing system storing a plurality of fairing groups. The computer system is configured to receive and input from a sensor and adjust the fairing groups to capture an agent flow which is transduced to a voltage and transferred to an electrical energy storage and/or distribution system.

A generative sensing system includes a plurality of fairings attached to a carrier via a plurality of mechanical links and further associated with a plurality of actuators in communication with a computing system and a memory in communication with the computing system storing a plurality of fairing groups. The computer system is configured to receive and input from a sensor and adjust the fairing groups to capture an agent flow which is transduced to a voltage and transferred to an electrical energy storage and/or distribution system.

A method and a device for detecting an active power of a wind turbine. The method includes: acquiring a current rotation speed of a rotor of a wind turbine and a current outputted active power; determining an effective wind speed of the wind turbine; determining a maximum active power capable to be captured by the wind turbine at the current rotation speed; determining a maximum active power capable to be outputted by the wind turbine, and determining a release power at which the wind turbine is capable to release a rotation kinetic energy of the wind turbine for a predetermined time at the current rotation speed; and determining the available active power of the wind turbine, based on the maximum active power capable to be outputted, the release power, and the current outputted active power.