Wind turbine with electric power bundling device, method for operating wind farm and method for installing wind turbine

Abstract

The invention relates to a wind turbine with a power bundling arrangement, a central power installation for a wind farm, a wind farm, a method for operating a wind farm and a method for installing a wind turbine. The invention relates to a wind turbine (1) having an electric power bundling device (8), the electric power bundling device (8) comprising at least one receiving antenna (9) for receiving electromagnetic radiation (10) and converting the received electromagnetic radiation (10) into an electric current (11), and the wind turbine comprises one or more electrical devices (12) electrically connected to the at least one receiving antenna (9) for supplying the electrical current (11) from the receiving antenna (9) to the one or more electrical devices (12). One or more electrical devices of the wind turbine may be supplied with power through the power bunch even if a generator of the wind turbine does not generate power. In particular, cable connections of the wind turbine and large storage units for storing electrical energy at the wind turbine are not necessary.

Description

Technical Field

[0001] The invention relates to a wind turbine with a power bundling device, a central power facility for a wind farm, a wind farm, a method for operating a wind farm and a method for installing a wind turbine. Background Art

[0002] Wind turbines convert the kinetic energy of wind into electrical energy. Providing infrastructure (such as cables) for transmitting the energy generated by wind turbines from wind collection sites to central stations and / or power grids is expensive. In particular, in the case of offshore wind farms with a large number of wind turbines, it is a time-consuming and expensive endeavor to electrically connect all wind turbines to shore. Recently, the concept of decentralized hydrogen production on external platforms of offshore wind turbines has been studied (e.g., EP 4067534 A1). With a hydrogen generation device at the wind turbine, the generated electrical energy can be directly converted into hydrogen. Such a wind turbine can be configured to transport electrical energy as well as hydrogen or only hydrogen. In the latter case, no cables are required for transmitting the electricity generated by the wind turbines. Summary of the invention

[0003] It is an object of the present invention to provide an improved wind turbine, an improved central power facility for a wind park, an improved wind park, an improved method for operating a wind park and an improved method for installing a wind turbine.

[0004] According to a first aspect, a wind turbine having a power bundling arrangement is provided. The power bundling arrangement comprises at least one receiving antenna for receiving electromagnetic radiation and converting the received electromagnetic radiation into an electric current. Furthermore, the wind turbine comprises one or more electrical devices electrically connected to the at least one receiving antenna to supply the electric current from the receiving antenna to the one or more electrical devices.

[0005] Thus, even in situations where the generator of the wind turbine does not generate electricity, one or more electrical devices (e.g., auxiliary devices) of the wind turbine may be supplied with electricity. Situations where the generator of the wind turbine does not generate electricity include calms where there is not enough wind to drive the rotor of the wind turbine, defects in the wind turbine, and intentional shutdown of the rotor due to a storm or required maintenance work.

[0006] The one or more electrical devices of the wind turbine include, for example, one or more auxiliary devices of the wind turbine, which are required to continue to operate even when the generator of the wind turbine is not generating electricity. Such auxiliary devices include, for example, one or more control devices, one or more safety-related devices, one or more heating devices, one or more cooling devices, one or more pumps and / or one or more lubrication devices.

[0007] Furthermore, the one or more electrical devices of the wind turbine may additionally or alternatively include devices of the wind turbine necessary, for example, in an emergency and / or to restart the generation of electricity by the wind turbine. Such devices include, for example, one or more pitch drives and / or yaw drives of the wind turbine.

[0008] A further advantage of supplying power to one or more electrical devices of a wind turbine by power bundling is that neither cables connecting the wind turbine to a remote power source nor a large storage unit for storing electrical energy at the wind turbine is necessary. In particular, a large storage unit for storing electrical energy with sufficient capacity is not required at the wind turbine to supply power to one or more electrical devices of the wind turbine during the entire period of time when the generator of the wind turbine is not generating power.

[0009] By not requiring the cables connecting the wind turbine to a remote power source and the large storage unit for storing electrical energy at the wind turbine, the installation and operation of the wind turbine is simplified. This is particularly important when installing and operating a wind farm with a large number of individual wind turbines, such as an offshore wind farm. Furthermore, power bundling has great benefits for offshore wind turbines installed at deep water depths and / or at a great distance from the shore, for example by means of floating foundations.

[0010] A wind turbine is a device that converts the kinetic energy of wind into electrical energy. A wind turbine includes a rotor having an axle and one or more blades, each blade being connected to the axle. The rotor is configured to be driven to rotate by the wind. The wind turbine also includes a nacelle that houses a generator. The generator is configured to convert the rotational energy into electrical energy. The wind turbine also includes a tower, a nacelle at the top of the tower. The tower of the wind turbine is mechanically connected to a foundation fixed to the ground or the seabed.

[0011] The wind turbine is, for example, an offshore wind turbine. Offshore includes marine environments as well as lakes and other surface waters. The foundation of an offshore wind turbine includes, for example, a monopile, a tripod and / or a floating foundation.

[0012] The wind turbine may also be an onshore wind turbine. The foundation of an onshore wind turbine comprises, for example, a concrete foundation.

[0013] The wind turbine is for example part of a wind park comprising a plurality of wind turbines.

[0014] The power bundling device of the wind turbine is configured to receive power in the form of electromagnetic radiation from a power source arranged remotely from the wind turbine. In particular, the at least one receiving antenna of the wind turbine is configured to receive electromagnetic radiation from at least one transmitting antenna arranged remotely from the wind turbine. Furthermore, the at least one receiving antenna of the wind turbine is configured to receive electromagnetic radiation carrying sufficient power to power one or more electrical devices of the wind turbine.

[0015] The at least one transmitting antenna arranged remote from the wind turbine is for example arranged at a distance of 500 meters or more, 1 km or more, 5 km or more and / or 10 km or more from the wind turbine.

[0016] The at least one receiving antenna is in particular configured to receive electromagnetic radiation and convert it into an electric current. For example, the receiving antenna can be configured to receive electromagnetic radiation and convert it into an alternating current (AC power). In addition, the at least one receiving antenna can optionally include at least one rectifier for converting the alternating current into a direct current (DC power). The receiving antenna is, for example, a so-called silicon rectifying diode antenna.

[0017] The at least one receiving antenna is, for example, configured to receive electromagnetic radiation having a radio frequency. The at least one receiving antenna is, for example, configured to receive electromagnetic radiation in a frequency range of 500 MHz or greater, 1 GHz or greater, 3 GHz or greater, 5 GHz or greater, 7 GHz or greater, 10 GHz or greater, and / or 20 GHz or greater.

[0018] The rated received power of the at least one receiving antenna has, for example, a sufficiently large value (minimum value) for supplying power to one or more electrical devices of the wind turbine. The rated received power of the at least one receiving antenna is, for example, 50 kW or more, 100 kW or more, and / or 500 kW or more (minimum rated received power).

[0019] In addition or instead of the minimum rated received power, the rated received power of the at least one receiving antenna has, for example, a maximum value suitable for configuring the at least one receiving antenna as a medium size. The rated received power of the at least one receiving antenna is, for example, 2 MW or less, 1 MW or less, 500 kW or less, 100 kW or less, 50 kW or less and / or 10 kW or less.

[0020] In case the power bundling device of the wind turbine comprises a plurality of receiving antennas, the rated minimum received power and the rated maximum received power are, for example, the received power of each of the plurality of receiving antennas or the received power of the plurality of receiving antennas combined.

[0021] One or more electrical devices are electrically connected to the at least one receiving antenna, for example by means of one or more cables.

[0022] Optionally, the one or more electrical devices are electrically connected to the at least one receiving antenna, for example via one or more DC / AC converters, so as to convert the DC current supplied by the at least one receiving antenna (e.g., a silicon rectifying diode antenna) into AC current for supplying AC current to the one or more electrical devices.

[0023] The at least one receiving antenna is, for example, arranged (e.g., attached) at a structure of the wind turbine. One, a plurality or all of the at least one receiving antenna are, for example, arranged (e.g., attached) at a tower of the wind turbine, a nacelle of the wind turbine and / or one or more external platforms of the wind turbine.

[0024] The wind turbine may further comprise a data transmission unit, for example, for wireless data transmission with a remote facility, such as a central power facility of the wind farm.

[0025] The data transfer unit includes, for example, a transmitting and receiving unit for transmitting and receiving radio frequency signals.

[0026] With the data transmission unit, the wind turbine can, for example, send a signal to the central control unit of the wind farm when the wind turbine is idle. The signal sent to the central control unit is, for example, a power request signal. The wind turbine being "idle" may include a situation in which the wind turbine has no energy generation. "Idle" may further include a charge state of a storage unit for storing electrical energy of the wind turbine and / or an estimated duration of not having enough wind to generate electrical energy being greater than a predetermined duration threshold (e.g., based on a weather forecast).

[0027] In embodiments of all aspects described herein, a "request to stop" signal may also be transmitted, for example, from a wind turbine (e.g., each wind turbine of a wind farm) to a central control unit of the wind farm. The "request to stop" signal is, for example, a signal requesting to stop transmitting electrical energy to the wind turbine by power bundling. The stop request signal may be sent, for example, in various situations: in an emergency, when the battery of the wind turbine is fully charged and / or the wind turbine is operational again and / or when the wind conditions are again sufficient for electrical energy generation by the wind turbine.

[0028] According to an embodiment of the first aspect, a wind turbine comprises a generator for generating electricity and a hydrogen production device for converting the generated electricity into hydrogen.

[0029] By having a hydrogen production device at the wind turbine, the electrical energy generated by the wind turbine can be directly and completely converted into green hydrogen. Therefore, a cable connection for transmitting the electrical energy generated from the wind turbine to the grid is not necessary ("island mode").

[0030] The proposed power bundling device is particularly advantageous for such wind turbines with hydrogen production devices but no cable connection to other facilities (island mode). Specifically, power bundling can provide the necessary power for one or more electrical devices of the wind turbine when the wind turbine is not generating electrical energy (idle mode).

[0031] The hydrogen production device is configured, for example, to produce hydrogen by converting water into hydrogen with the aid of electricity generated by a generator of a wind turbine. Thus, water is separated into hydrogen and oxygen by an electrolysis process.

[0032] The hydrogen generation device includes, for example, one or more electrolysis units for generating hydrogen, one or more compressor units for compressing the generated hydrogen, one or more cooling units for cooling components of the hydrogen generation device, a water supply device for supplying water to the hydrogen generation device, a water intake device for taking water from the sea and / or surface water reservoirs and supplying the water to the hydrogen generation device, and / or one or more desalination units for desalinating seawater.

[0033] The wind turbine comprises, for example, one or more external platforms, wherein the hydrogen production device is arranged on the one or more external platforms. Furthermore, the one or more external platforms are, for example, arranged outside a tower or outside a nacelle of the wind turbine.

[0034] The produced hydrogen is transported to other facilities, for example by connecting the wind turbine to another facility via a hydrogen pipeline.

[0035] According to further embodiments of the first aspect, the one or more electrical devices comprise one or more electrical loads and / or one or more electrical storage units.

[0036] In case that the one or more electrical devices include one or more electrical loads, the at least one receiving antenna is, for example, directly electrically connected to the one or more electrical loads.

[0037] The one or more electrical loads include, for example, one or more of said auxiliary devices of a wind turbine, which are required to continue to operate even when the generator of the wind turbine is not generating electricity. Furthermore, the one or more electrical loads may additionally or alternatively include, for example, said devices of a wind turbine that are necessary in an emergency and / or in order to restart electricity generation of the wind turbine.

[0038] In case the one or more electrical devices comprise one or more electrical storage units, the at least one receiving antenna is for example directly electrically connected to the one or more electrical storage units.

[0039] Furthermore, the one or more electrical storage units are, for example, electrically connected to the one or more loads.

[0040] The electrical connection of the at least one receiving antenna to the one or more electrical storage units allows the collection and storage of electrical energy transmitted from a remote location to the wind turbine by power bundling. The stored electrical energy can then be supplied to the one or more loads.

[0041] Specifically, the one or more electricity storage units have a small storage capacity, for example, 3000 kWh or less, 1000 kWh or less, 500 kWh or less, and / or 200 kWh or less.

[0042] According to further embodiments of the first aspect, the power bundling arrangement comprises one or more actuators for orienting the at least one receiving antenna towards a transmitting antenna arranged remote from the wind turbine.

[0043] Thus, the at least one receiving antenna may be directed towards a transmitting antenna arranged far from the wind turbine.Furthermore, the at least one receiving antenna may be selectively directed towards a specific transmitting antenna among several transmitting antennas arranged far from the wind turbine.

[0044] The one or more actuators are configured, for example, to change the azimuth angle of the at least one receiving antenna. The one or more actuators may also be configured, for example, additionally to change the elevation angle of the at least one receiving antenna.

[0045] According to a further embodiment of the first aspect, the power bundling arrangement comprises at least one transmitting antenna for transmitting electromagnetic radiation to a receiving antenna arranged remotely from the wind turbine.

[0046] By means of the at least one transmitting antenna the wind turbine is able to transmit electrical power (generated by the wind turbine and / or received by means of its receiving antenna) to another facility arranged remotely from the wind turbine.

[0047] For example, the wind turbine may be part of a wind farm (e.g., an offshore wind farm). In this case, the at least one transmitting antenna may be used to transmit power to another wind turbine of the wind farm. The other wind turbine of the wind farm may, for example, not currently generate power (idle wind turbine). Furthermore, the power transmitted by the wind turbine to the other idle wind turbine may be used to supply power to one or more electrical devices of the other wind turbine.

[0048] In this example, the wind turbine can act as a power source and transmit the power generated by the wind turbine to another idle wind turbine. Alternatively, the wind turbine can act as a relay station and relay the power received by its receiving antenna to another idle wind turbine.

[0049] In an embodiment of the first aspect, the power bundling arrangement comprises one or more further actuators for directing the at least one transmitting antenna towards a receiving antenna arranged remotely from the wind turbine.

[0050] Thus, the at least one transmitting antenna may be directed towards a receiving antenna arranged remotely from the wind turbine.Furthermore, the at least one transmitting antenna may be selectively directed towards a specific receiving antenna among several available receiving antennas arranged remotely from the wind turbine.

[0051] The one or more further actuators are configured, for example, to change the azimuth angle of the at least one transmitting antenna. The one or more further actuators may also be configured, for example, additionally to change the elevation angle of the at least one transmitting antenna.

[0052] According to further embodiments of the first aspect, the rated transmit power of the at least one transmit antenna is 2 MW or less, 1 MW or less, 500 kW or less, 100 kW or less, 50 kW or less and / or 10 kW or less.

[0053] The at least one transmitting antenna with the rated transmission power can be used to supply power to another idle wind turbine, so that important electrical equipment of the other idle wind turbine can continue to operate. In this embodiment, the wind turbine can be used as a power source or a relay station.

[0054] As used herein, the "rated transmit power" and / or the "rated receive power" of a transmit antenna and / or a receive antenna, respectively, means, for example, the total electromagnetic energy flow received and / or transmitted, respectively, via the described antenna.

[0055] According to further embodiments of the first aspect, the rated transmit power of the at least one transmit antenna is 3 MW or more, 5 MW or more, 10 MW or more, 15 MW or more and / or 20 MW or more.

[0056] The at least one transmitting antenna having said rated transmitting power may be used for transmitting the electrical energy generated by the generator of the wind turbine to another (onshore or offshore) facility and / or to a power grid.

[0057] According to a second aspect, a central power facility for a wind farm is provided. The central power facility comprises:

[0058] A central power source for providing electricity, and

[0059] The central power bundling device comprises at least one transmitting antenna for generating electromagnetic radiation according to the provided power and transmitting the electromagnetic radiation to receiving antennas of wind turbines of the wind farm.

[0060] With a central power facility having a central power bundling device, the wind turbines of a wind farm can be supplied with power via the power bundling from the central power facility. Therefore, cables connecting the wind turbines to the central power source are unnecessary. Furthermore, large storage units for storing electrical energy at the wind turbines are also not required.

[0061] The wind farm is, for example, an offshore wind farm. However, the wind farm may also be, for example, an onshore wind farm.

[0062] The central power facility may be, for example, an offshore facility. The offshore facility may include an offshore substation having one or more platforms. The offshore facility may also include a foundation such as a monopile driven into the seabed or a floating foundation anchored to the seabed. Alternatively, the central power facility may also be, for example, an onshore facility.

[0063] A central electric power facility, including at least one transmitting antenna thereof, such as a receiving antenna configured to transmit electromagnetic radiation to a plurality of wind turbines of a wind farm.

[0064] The central power source is electrically connected to an onshore facility and / or an electrical grid (eg a national grid), for example by means of one or more cables.

[0065] The central power source comprises, for example, a grid connection to a large (eg, national) power grid and / or a large storage unit for storing electrical energy.

[0066] The large storage unit of the central power supply of the central power facility has, for example, a storage capacity for storing 400 kWh or more, 1 MWh or more, 10 MWh or more and / or 50 MWh or more of electrical energy, so that the wind turbines of the wind farm can be supplied with electrical energy via the power bundle from the central power facility.

[0067] In the case where the electricity generated by wind turbines is transmitted to a central power facility by power bundling, the storage capacity of the large storage unit of the central power source has, for example, the following values: 10MWh or more, 20MWh or more, 50MWh or more, 100MWh or more and / or 300MWh or more.

[0068] According to an embodiment of the second aspect, a central power facility comprises a central control unit configured to determine a power supply scheme to supply power to idle wind turbines of a wind farm by power bundling, wherein the power supply scheme comprises instructions for transmitting electromagnetic radiation from at least one transmitting antenna of the central power facility and / or from at least one transmitting antenna of another wind turbine of the wind farm serving as a power source to the idle wind turbines directly or via one or more further wind turbines of the wind farm serving as relay stations.

[0069] By determining the power supply scheme, idle wind turbines of a wind farm can be supplied with power in an efficient manner.

[0070] An idle wind turbine of a wind farm, in particular, is a wind turbine of a wind farm that is not currently generating electricity.

[0071] The central power bundling device comprises, for example, one or more actuators for orienting at least one transmitting antenna towards receiving antennas of wind turbines of the wind farm. The one or more further actuators are, for example, configured to change the azimuth angle of the at least one transmitting antenna. The one or more further actuators may, for example, additionally be configured to change the elevation angle of the at least one transmitting antenna.

[0072] According to a further embodiment of the second aspect, the central power facility comprises at least one receiving antenna having the following receiving power for receiving power from a power bundling device of a wind turbine of a wind farm: a receiving power of 3 MW or greater, 5 MW or greater, 10 MW or greater, 15 MW or greater and / or 20 MW or greater.

[0073] Thus, a central electric utility may be used to transmit electrical energy generated by remote wind turbines through the central electric utility's power bundle.

[0074] According to a third aspect, a wind farm is provided. The wind farm comprises a plurality of wind turbines as described above and / or one or more central power facilities as described above.

[0075] Thus, power bundling for supplying power to idle wind turbines of a wind farm and / or for transmitting energy generated by wind turbines of a wind farm to a central power facility may be applied to large wind farms comprising a large number of individual wind turbines and one or more central power facilities.

[0076] According to a fourth aspect, a method for operating a wind farm is provided. The wind farm comprises a plurality of wind turbines as described above and one or more central power facilities as described above. In addition, the method comprises the following steps:

[0077] receiving, by a central control unit of a central electric utility, a data signal indicating that wind turbines of a wind farm are idle,

[0078] determining, by the central control unit, a power supply scheme for supplying power to the idle wind turbines through power bundling, and

[0079] Electromagnetic radiation is transmitted from the at least one transmitting antenna of the central power facility and / or from at least one transmitting antenna of another wind turbine of the wind farm acting as power source to the idle wind turbine directly or via one or more further wind turbines of the wind farm acting as relay stations.

[0080] Thus, idle wind turbines of the wind farm can be supplied with electric power. Thus, it can be ensured that important electrical equipment of the idle wind turbine (eg auxiliary equipment and / or equipment required for restarting the wind turbine) continues to operate.

[0081] Furthermore, by determining a power supply scheme for supplying power to idle wind turbines through power bundling, power available in a wind farm may be efficiently distributed to idle wind turbines of the wind farm.

[0082] According to an embodiment of the fourth aspect, determining the power supply scheme includes:

[0083] determining a first line of sight between the at least one transmitting antenna of the central power facility and the at least one receiving antenna of the idle wind turbine,

[0084] determining a second line of sight between the at least one transmitting antenna of the other wind turbine acting as a power source and the at least one receiving antenna of the idle wind turbine, and / or

[0085] One or more third lines of sight are determined between respective receiving antennas and transmitting antennas of each member of the supply chain, including a central power facility or another wind turbine acting as a power source, one or more additional wind turbines of a wind farm acting as relay stations, and idle wind turbines.

[0086] By determining the first, second and / or third line of sight, possible and / or effective power bundling paths may be determined, possibly including one or more relay stations.

[0087] The method includes, for example, determining whether there are one or more obstacles along the first, second and / or third sight lines. In addition, the method includes, for example, selecting one, more or all members of the supply chain based on the determined sight lines without obstacles.

[0088] According to a further embodiment of the fourth aspect, the method comprises:

[0089] orienting the at least one transmitting antenna of the central power facility and the at least one receiving antenna of the idle wind turbine according to the determined first line of sight,

[0090] directing the at least one transmitting antenna of the other wind turbine acting as a power source and the at least one receiving antenna of the idle wind turbine according to the determined second line of sight, and / or

[0091] Based on the determined multiple third lines of sight, the at least one transmitting antenna of the central power facility or the at least one transmitting antenna of another wind turbine serving as a power source, the at least one transmitting antenna and the at least one receiving antenna of each of one or more additional wind turbines of the wind farm serving as a relay station, and / or the at least one receiving antenna of an idle wind turbine are oriented.

[0092] According to a fifth aspect, a method for installing a wind turbine is provided. The method comprises the following steps:

[0093] Setting up wind turbines at wind harvesting sites,

[0094] arranging at least one receiving antenna at the structure of the wind turbine for power bundling,

[0095] transmitting electrical power to the wind turbine by power bundling, wherein electromagnetic radiation is transmitted from at least one transmitting antenna arranged remote from the wind turbine to at least one receiving antenna of the wind turbine and converted into an electric current,

[0096] supplying the current from the receiving antenna to one or more electrical devices of the wind turbine,

[0097] providing a cable connection from a remote location to said wind turbine, and

[0098] The at least one receiving antenna is removed from the structure of the wind turbine.

[0099] By means of the method for installing a wind turbine according to the fifth aspect, at least one receiving antenna for power bundling can be temporarily arranged at the structure of the wind turbine. Thus, the at least one receiving antenna for power bundling can be temporarily used to supply power to one or more electrical devices of the wind turbine during the installation of the wind turbine. Once a cable is provided for connecting the wind turbine to a remote location (e.g. a central facility of a wind farm and / or a power grid), one or more electrical devices of the wind turbine can be supplied with power by using the cable (where necessary (e.g. when the wind turbine is idle)). The temporarily arranged at least one receiving antenna can then be removed again from the structure of the wind turbine.

[0100] The respective entities (e.g. the central control unit and the wind turbine control unit) may be implemented in hardware and / or software. If the entity is implemented in hardware, it may be embodied as a device (such as a computer) or a processor or part of a system (e.g. a computer system). If the entity is implemented in software, it may be embodied as a computer program product, a function, a routine, a program code or an executable object.

[0101] According to a fifth aspect, at least one transmitting antenna arranged remote from the wind turbine is arranged, for example, at the central power facility described above. In the case of the fifth aspect, the central power facility may be, for example, an onshore or offshore facility including a vessel.

[0102] According to a further aspect, the invention relates to a computer program product comprising a program code for executing the method steps of determining a power supply scheme as described above when said program code is run on at least one computer.

[0103] A computer program product (such as a computer program component) may be embodied as a memory card, USB stick, CD-ROM, DVD or as a file that may be downloaded from a server in a network. For example, such a file may be provided by transmitting a file comprising a computer program product from a wireless communication network.

[0104] Embodiments and features described with reference to the first aspect of the invention apply mutatis mutandis to the other aspects of the invention, and vice versa.

[0105] Further possible implementations or alternative solutions of the present invention also include combinations of features described above or below with respect to the embodiments (not explicitly mentioned herein). A person skilled in the art may also add individual or isolated aspects and features to the most basic form of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0106] Further embodiments, features and advantages of the present invention will become apparent from the following description and dependent claims, taken in conjunction with the accompanying drawings, in which:

[0107] Figure 1 shows a perspective view of a wind turbine and a remote central power plant according to an embodiment;

[0108] Figure 2 Shows Figure 1 Another embodiment of a wind turbine;

[0109] Figure 3 Shows Figure 1 Another embodiment of the central power device;

[0110] Figure 4 The diagram shows the Figure 1 Different options for arranging rectifier antennas and transmitting antennas at structural components of a wind turbine;

[0111] Figure 5 shows a wind farm with a plurality of wind turbines and a central power plant according to an embodiment;

[0112] Figure 6 A flow chart illustrating a method for operating a wind farm according to an embodiment is shown;

[0113] Figure 7 shows a flow chart illustrating a method for installing a wind turbine according to an embodiment; and

[0114] Figure 8 Shows Figure 7 There are two different installation states for the method.

[0115] In the drawings, like reference numbers indicate similar or functionally equivalent elements unless expressly stated otherwise. DETAILED DESCRIPTION

[0116] Figure 1 A wind turbine 1 according to an embodiment is shown.

[0117] The wind turbine 1 comprises a rotor 2 connected to a generator 3 ( Figure 2 ). A nacelle 4 is arranged at an upper end of a tower 5 of the wind turbine 1 . The rotor 2 comprises, for example, three rotor blades 6 . Each of the rotor blades 6 is connected to a hub 7 of the rotor 2 .

[0118] The wind turbine 1 further comprises a power bundling device 8. The power bundling device 8 comprises at least one receiving antenna 9 for receiving electromagnetic radiation 10 and converting the received electromagnetic radiation 10 into an electric current 11. For example, the receiving antenna 9 converts the received electromagnetic radiation 10 into an alternating current AC. For example, the receiving antenna 9 comprises one or more rectifiers configured to convert the alternating current AC into a direct current 11. In this case, the receiving antenna 9 may also be referred to as a "silicon rectifying diode antenna". In the following, the receiving antenna 9 (and other receiving antennas) is described as a silicon rectifying diode antenna 9, but is not limited thereto.

[0119] The wind turbine 1 comprises one or more electrical devices 12 electrically connected to at least one silicon rectifier diode antenna 9. For example, the electrical connection 13 of the one or more electrical devices 12 and the at least one silicon rectifier diode antenna 9 is established by means of one or more cables 14. Thus, the one or more electrical devices 12 can be supplied with direct current 11 from the silicon rectifier diode antenna 9. In particular, even in a situation where the generator 3 of the wind turbine 1 does not generate electricity (idle wind turbine, for example, when there is not enough wind blowing), the one or more electrical devices 12 of the wind turbine 1 can be supplied with electricity 11.

[0120] For example, the one or more electrical devices 12 include one or more loads 15, such as one or more auxiliary devices of the wind turbine 1 (e.g., control devices, cooling devices, etc.), which are required to continue to operate even when the generator 3 of the wind turbine 1 is not generating electricity. In addition, the one or more loads 15 may additionally or alternatively include devices necessary in an emergency and / or to restart the generation of electricity by the wind turbine (e.g., pitch drive, yaw drive).

[0121] The power bundling device 8 of the wind turbine 1 is configured to receive power 16 in the form of electromagnetic radiation 10 from a power source 17 arranged remotely from the wind turbine 1. In particular, the at least one rectenna 9 of the wind turbine 1 is configured to receive the electromagnetic radiation 10 from at least one transmitting antenna 18 arranged remotely from the wind turbine 1. Furthermore, the at least one rectenna 9 of the wind turbine 1 is configured to receive the electromagnetic radiation 10 carrying a sufficient amount of power 16 for powering one or more electrical devices 12 of the wind turbine 1.

[0122] As an example, Figure 1 The wind turbine 1 shown in is part of a wind farm 19 , for example an offshore wind farm.

[0123] exist Figure 1, a central power facility 20 of a wind farm 19 is illustrated. The central power facility 20 comprises a central power source 17 for providing power 21. The central power source 17 may include one or more power storage units and / or a grid connection. In addition, the central power facility 20 comprises a central power bundling device 22, which comprises at least one transmitting antenna 18. The at least one transmitting antenna 18 is electrically connected to the central power source 17 (e.g., using a cable 23).

[0124] Specifically, the at least one transmitting antenna 18 is configured to generate electromagnetic radiation 10 from the provided power 21. The at least one transmitting antenna 18 is also configured to transmit the generated electromagnetic radiation 10 to the wind turbines (e.g., Figure 1 1 ). Detailed description of the invention A rectifier diode antenna 9 of a wind turbine 1 ) is shown in FIG.

[0125] For example, the central power facility 20 of the wind farm 19 includes one or more structural elements 24 and / or housings 25. The at least one transmitting antenna 18 and / or other components (e.g., other antennas) of the central power bundling device 22 can be attached to one or more structural elements 24 and / or housings 25 of the central power facility 20. In addition, the central power source 17 (e.g., one or more storage units of the central power source 17 and / or the grid connection of the central power source 17) and / or other equipment of the central power facility 20 can be accommodated in one or more housings 25 of the central power facility 20.

[0126] In the case of an offshore wind farm 19 , the central power facility 20 may be located either offshore or onshore.

[0127] Figure 2 Shows Figure 1 Several optional elements of the wind turbine 1 are provided.

[0128] For example, one or more electrical devices 12 of the wind turbine 1 (supplied with power via the silicon rectifier diode antenna 9 by means of power bundling) may include one or more electrical storage units 26 (instead of one or more electrical loads 15). In addition, the at least one silicon rectifier diode antenna 9 is electrically connected 13, 14 to the one or more electrical storage units 26. The wind turbine 1 also includes one or more loads 15' (e.g., auxiliary devices) electrically connected (reference numeral 27) to the one or more electrical storage units 26.

[0129] The electrical energy 16 ( Figure 1 ) can be collected and temporarily stored at the wind turbine 1. The stored electrical energy can then be supplied to the one or more loads 15.

[0130] like Figure 2 As shown in FIG. 1 , the power bundling device 8 may optionally include one or more actuators 28 for directing at least one rectifier antenna 9 toward a remotely arranged transmitting antenna 18 ( Figure 1 ). Specifically, the one or more actuators 28 are configured to change the azimuth angle α of the at least one silicon rectifier antenna 9. The one or more actuators 28 may also be additionally configured to change the elevation angle β (elevation angle β) of the at least one silicon rectifier antenna 9.

[0131] The wind turbine 1 (ie its power bundling device 8) may optionally include at least one transmitting antenna 29 ( Figure 2 ) for emitting electromagnetic radiation 30 to a rectifier antenna 31 ( Figure 3 For example, the at least one transmitting antenna 29 of the wind turbine 1 is used to transmit electromagnetic radiation 30 to the central power facility 20 ′ ( Figure 3 ) of the silicon rectifier antenna 31 or to the wind farm 19'( Figure 5 ) of another wind turbine 1a of the silicon rectifying diode antenna 9a.

[0132] In a first variant, the at least one transmitting antenna 29 ( Figure 2 ) is used, for example, to supply power to another idle wind turbine 1a of the wind farm 19', so that important electrical equipment of the other idle wind turbine 1a (similar to Figure 1 In this first variant, the wind turbine 1 is used as a power source (see Figure 5 43 in the figure) or a relay station (see Figure 5 44 in the figure). In a first variant, the rated transmission power of the at least one transmitting antenna 29 is, for example, 2 MW or less, 1 MW or less, 500 kW or less, 100 kW or less, 50 kW or less and / or 10 kW or less.

[0133] In a second variant, at least one transmitting antenna 29 ( Figure 2 ) is used, for example, to transmit the electrical energy generated by the generator 3 of the wind turbine 1 to another (onshore or offshore) facility 20' and / or a power grid (e.g. a national grid). In a second variant, the rated transmission power of the at least one transmitting antenna 29 is, for example, 3 MW or more, 5 MW or more, 10 MW or more, 15 MW or more and / or 20 MW or less.

[0134] At least one transmitting antenna 29 ( Figure 2) may include (similar to the at least one silicon rectifier diode antenna 9) one or more actuators 32 for causing the at least one transmitting antenna 29 to be directed toward the remotely arranged silicon rectifier diode antenna 31, 9a ( Figure 3 , 5 ).

[0135] The wind turbine 1 may also optionally comprise a data transmission unit 33 ( Figure 2 ) is used for wireless data transmission 34 with a remote facility (eg, a central power facility 20, 20'). With the aid of the data transmission unit 33, a signal 35 can be sent to, for example, a data transmission unit 36 ​​( Figure 3 ). For example, in the case where the wind turbine 1 is idle, a signal 35 including a request for power may be sent to the central power facility 20'.

[0136] The wind turbine 1 further comprises, for example, a control unit 37 ( Figure 2 ) for determining the idle state based on data received from one or more components of the wind turbine 1 (eg the generator 3). The control unit 37 may also be configured for generating a power request signal 35.

[0137] like Figure 2 , the wind turbine 1 may optionally comprise a hydrogen generation device 38 for generating hydrogen by means of the electricity generated by the generator 3. The hydrogen generation device 38 may be arranged at an outer platform 39 of the tower 5 of the wind turbine 1, or may be arranged at another structural component of the wind turbine 1.

[0138] By having a hydrogen generation device 38 at the wind turbine 1, the electrical energy generated by the generator 3 can be directly and completely transformed into green hydrogen. Therefore, a cable connection for transmitting the electrical energy generated by the generator 3 of the wind turbine 1 to another facility or a power grid can be completely omitted ("island mode"). The power bundling device 8 is particularly advantageous in the case where such a wind turbine 1 with a hydrogen generation device 38 temporarily does not generate electrical energy (idle mode, for example due to low wind). The reason is that during the idle state of the wind turbine 1, the power necessary for one or more electrical devices 12 of the wind turbine 1 can be provided by power bundling.

[0139] Figure 4 The diagram shows a method for arranging at least one rectifier antenna 9 and / or at least one transmitting antenna 29 ( Figure 2). For example, one, more or all of the at least one silicon rectifier diode antenna 9, 109 and the at least one transmitting antenna 29, 129 may be arranged (e.g., attached) at the tower 5 of the wind turbine 1. In addition, one, more or all of the at least one silicon rectifier diode antenna 9 and the at least one transmitting antenna 29 may be arranged at a first height H1 of the tower 5, which is less than the shadowing height H1 of the wind turbine 1. S . Shielding height H S is the height to which the rotor blades 6 extend during rotation. In addition, one, more or all of the at least one silicon rectifier antenna 109 and the at least one transmitting antenna 129 can be arranged, for example, at a height H2 of the tower 5, which is greater than the shadowing height H S In this case, power bundling using at least one rectifier antenna 109 may be performed as the nacelle 4 and rotor 2 rotate by means of a yaw bearing (not shown) of the wind turbine 1 until they do not interfere with the line of sight to the at least one transmitting antenna 18 (e.g. Figure 5 The shielding height H S The first height H1 and the second height H2 are both heights with respect to the height direction H of the erected wind turbine 1 .

[0140] In addition, if Figure 4 As shown in FIG. 1 , one, more or all of the at least one silicon rectifier antenna 209, 309 and the at least one transmitting antenna 229, 329 can be arranged, for example, at an external platform 39', 39" of the tower 5. The platform 39', 39" is, for example, a platform 39 ( Figure 2 ) or another platform of the wind turbine 1.

[0141] In addition, if Figure 4 As shown in FIG. 4 , one, more or all of the at least one rectifier antenna 409 and the at least one transmitting antenna 429 may be arranged, for example, at the nacelle 4 (eg, on top of the nacelle housing).

[0142] Figure 3 An embodiment of a central power facility 20 ′ is shown. The central power facility 20 ′ comprises a central power beam arrangement 22 having at least one transmit antenna 18 and optionally at least one rectenna 31 .

[0143] The central power facility 20' may further include a central control unit 40. The central control unit 40 is connected to the data transmission unit 36 ​​wirelessly or by wire 41, for example. The central control unit 40 is configured to receive a signal 35 ( Figure 2), the signal 35 indicates that the wind turbine 1 is idle. The signal 35 may include a power request signal.

[0144] The central control unit 40 is, for example, configured to determine a power supply scheme for supplying power 16 ( Figure 1 ).

[0145] The power supply scheme comprises, for example, a method for transmitting electromagnetic radiation 10 from at least one transmitting antenna 18 of a central power facility 20, 20' directly or indirectly (i.e. indirectly via one or more further wind turbines 1d of a wind farm 19, 19' acting as a relay station 44, Figure 5 ) is transmitted to the idle wind turbine 1.

[0146] Alternatively, another wind turbine 1b ( Figure 5 ) can be used as power source 43. In this case, the power supply scheme comprises, for example, instructions for transmitting electromagnetic radiation 10 from at least one transmitting antenna 29b of another wind turbine 1b of the wind farm 19' used as power source 43 directly or indirectly (i.e. via a relay station, see above) to the idle wind turbine 1.

[0147] The wind turbine 1 comprises at least one transmitting antenna 29 ( Figure 2 ) and the central power facility 20' includes at least one silicon rectifier diode antenna 31, the electric energy generated by the generator 3 of the wind turbine 1 can be transmitted from the wind turbine 1 to the central power facility 20' by means of power bundling. In this case, the transmission power of the at least one transmitting antenna 29 of the wind turbine 1 and the receiving power of the at least one silicon rectifier diode antenna 31 of the central power facility 20' are, for example, 3MW or more, 5MW or more, 10MW or more, 15MW or more and / or 20MW or more.

[0148] In the following, reference Figure 6 A method for operating a wind park 19 , 19 ′ is described.

[0149] Wind farm 19, 19'( Figure 1 , 5 ) comprises a plurality of wind turbines 1a, 1b, 1c, 1d, each wind turbine having Figure 1 , 2 , 4, one, more or all of the above-described features of the wind turbine 1. The wind farm 19, 19' also includes one or more central power facilities 20, 20', each central power facility having Figure 1 and 3One, more or all of the above-described features of the central power facility 20, 20' shown in FIG.

[0150] In a first step S1 of the method, the central control unit 40 ( Figure 3 ) receives an indication of the wind turbine 1a of the wind farm 19, 19' ( Figure 5 )The data signal 35 is in idle state.

[0151] In a second step S2 of the method, the central control unit 40 ( Figure 3 ) determines a power supply scheme for supplying power to the idle wind turbine 1a ( Figure 5 ) Supply power 16( Figure 1 ).

[0152] For example, in step S2 a first line of sight A is determined between at least one transmitting antenna 18 of the central power facility 20, 20' and at least one rectenna 9a of the idle wind turbine 1a.

[0153] The central control unit 40 can also determine whether there is an obstacle 42 along the first line of sight A. For example, Figure 5 The wind turbine 1 c in may be an obstacle along the first line of sight A. Additionally or alternatively, the central control unit 40 may determine whether a length L1 of the first line of sight A is less than or equal to a predetermined threshold length for power bundling by the at least one transmitting antenna 18 .

[0154] If the central control unit 40 determines that there is an obstacle 42 along the first line of sight A and / or the length L1 of the first line of sight A is greater than a predetermined threshold length, another wind turbine 1b of the wind farm 19, 19' may be used as a power source 43 and / or one or more other wind turbines 1d may be used as relay stations 44.

[0155] For example, in step S2 a second line of sight B is determined between at least one transmitting antenna 29b of another wind turbine 1b acting as a power source 43 and at least one rectenna 9a of an idle wind turbine 1a.

[0156] Additionally or alternatively, one or more third lines of sight C1, C2 (or C1', C2') are determined between the respective rectennas 9d, 9a and the transmitting antennas 18, 29d, 29a of each member of the supply chain 45. The supply chain 45 may include a central power facility 20, 20' or another wind turbine 1b, 1c acting as a power source 43, one or more additional wind turbines 1b, 1d of a wind farm 19, 19' acting as a relay station 44, and an idle wind turbine 1a.

[0157] In a third step S3 of the method, the respective transmitting antenna(s) and the respective rectenna(s) are oriented according to the determined first, second and / or third lines of sight A, B, C1, C2, C1', C2'.

[0158] For example, in step S3 , at least one transmitting antenna 18 of the central power facility 20 , 20 ′ and at least one rectifier antenna 9 a of the idle wind turbine 1 a are oriented according to the determined first line of sight a.

[0159] Alternatively or instead, at least one transmitting antenna 29b of another wind turbine 1 b acting as power source 43 and at least one rectenna 9a of the idle wind turbine 1 a are oriented according to the determined second line of sight B.

[0160] Alternatively or instead, the following are oriented according to the determined multiple third lines of sight C1, C2, C1', C2': at least one transmitting antenna 18 of the central power facility 20, 20' or at least one transmitting antenna 29b, 29c of another wind turbine 1b, 1c serving as a power source 43, at least one rectifier antenna 9b, 9d and at least one transmitting antenna 29b, 29d of each of one or more additional wind turbines 1b, 1d of the wind farm 19, 19' serving as a relay station 44, and at least one rectifier antenna 9a of an idle wind turbine 1a.

[0161] Step S3 is optional. In particular, a wind farm 19, 19' with a predetermined fixed direction of the corresponding rectenna(s) and transmitting antenna(s) may be provided.

[0162] In a fourth step S4 of the method, the electromagnetic radiation 10 ( Figure 1 ) is transmitted from at least one transmitting antenna 18 of a central power facility 20, 20' and / or from at least one transmitting antenna 29b, 29c of another wind turbine 1b, 1c of a wind farm 19, 19' acting as a power source 43 directly or via one or more further wind turbines 1b, 1d of a wind farm 19, 19' acting as a relay station 44 to an idle wind turbine 1a.

[0163] By determining a power supply scheme for supplying power to idle wind turbines 1a of wind farms 19, 19' through power bundling as described above, power available in wind farms 19, 19' may be efficiently distributed to idle wind turbines 1a of wind farms 19, 19'.

[0164] In the following, reference Figure 7 and Figure 8A method for installing a wind turbine 1 ' is described.

[0165] In a first step S1 ′ of the method, a wind turbine 1 ′ is erected at a wind collection site S.

[0166] In a second step S2' of the method, at least one rectenna 9' for power bundling is arranged at the structure 5' (eg the tower 5') of the wind turbine 1'.

[0167] In a third step S3' of the method, power 16' is transmitted to the wind turbine 1' by power bundling. Specifically, electromagnetic radiation 10' is transmitted from at least one transmitting antenna 18 ( Figure 1 ) is transmitted to at least one rectifier antenna 9' of the wind turbine 1' and the electromagnetic radiation 10' is converted into direct current 11'.

[0168] In a fourth step S4' of the method, direct current 11' from the rectenna 9' is supplied to one or more electrical devices 12' of the wind turbine 1'. The one or more electrical devices 12' are electrically connected 13' to at least one rectenna 9'.

[0169] Thus, during installation of the wind turbine 1 ', at least one rectenna 9' for power bundling is temporarily used to supply power to one or more electrical devices 12' of the wind turbine 1 '.

[0170] In a fifth step S5' of the method, a cable connection 46 is provided from a remote location (e.g., a central onshore or offshore facility and / or a power grid of a wind farm 19, 19') to the wind turbine 1'. The cable connection 46 is configured for transmitting electrical energy generated by the generator 3' of the wind turbine 1' to the central facility and / or the power grid. When the wind turbine 1' is idle, the cable connection 46 can be used to supply power to one or more electrical devices 12' of the wind turbine 1'.

[0171] In a sixth step S6 ′ of the method, the at least one rectenna 9 ′ is removed from the structure 5 ′ of the wind turbine 1 ′.

[0172] In particular, once the cable connection 46 to the wind turbine 1' has been established, one or more electrical devices 12' of the wind turbine 1' can be supplied with power by using the cable connection 46 (if necessary (e.g. when the wind turbine 1' is idle)). The temporarily arranged at least one silicon rectifier antenna 9' can then be removed from the structure 5' of the wind turbine 1' again, as shown in FIG. Figure 8 shown on the right.

[0173] Although the invention has been described in terms of preferred embodiments, it will be apparent to those skilled in the art that modifications may be made to all embodiments.

Claims

1. A wind turbine (1) having a power bundling device (8), wherein The power bundling device (8) comprises at least one receiving antenna (9) for receiving electromagnetic radiation (10) and converting the received electromagnetic radiation (10) into electric current (11), and The wind turbine comprises one or more electrical devices (12) electrically connected to the at least one receiving antenna (9) for supplying the electric current (11) from the receiving antenna (9) to the one or more electrical devices (12).

2. A wind turbine according to claim 1, comprising a generator (3) for generating electricity and a hydrogen production device (38) for converting the generated electricity into hydrogen.

3. A wind turbine according to claim 1 or 2, wherein the one or more electrical devices (12) comprise one or more electrical loads (15) and / or one or more electrical storage units (26).

4. A wind turbine according to any one of claims 1 to 3, wherein the power bundling device (8) comprises one or more actuators (28) for orienting the at least one receiving antenna (9) towards a transmitting antenna (18) arranged away from the wind turbine.

5. A wind turbine according to any one of claims 1 to 4, wherein the power bundling device (8) comprises at least one transmitting antenna (29) for transmitting electromagnetic radiation (30) to a receiving antenna (31) arranged remote from the wind turbine.

6. The wind turbine according to claim 5, wherein the rated transmission power of the at least one transmitting antenna (29) is 2 MW or less, 1 MW or less, 500 kW or less, 100 kW or less, 50 kW or less and / or 10 kW or less.

7. The wind turbine according to claim 5, wherein the rated transmission power of the at least one transmitting antenna (29) is 3 MW or more, 5 MW or more, 10 MW or more, 15 MW or more and / or 20 MW or more.

8. A central power facility (20) for a wind farm (19), comprising: a central power source (17) for providing electrical power (21), and A central power bundling device (22) comprises at least one transmitting antenna (18) for generating electromagnetic radiation (10) from supplied power (21) and transmitting the electromagnetic radiation (10) to receiving antennas (9) of wind turbines (1) of the wind farm (19).

9. A central power facility according to claim 8, comprising a central control unit (40), which is configured to determine a power supply scheme for supplying power (16) to idle wind turbines (1a) of the wind farm (19) by power bundling, wherein the power supply scheme comprises instructions for transmitting the electromagnetic radiation (10) to the idle wind turbines (1a) from at least one transmitting antenna (18) of the central power facility (20) and / or from at least one transmitting antenna (29b) of another wind turbine (1b) of the wind farm (19) acting as a power source (43) directly or via one or more further wind turbines (1d) of the wind farm (19) acting as relay stations (44).

10. The central power facility according to claim 8 or 9, comprising at least one receiving antenna (31) having a receiving power of 3 MW or more, 5 MW or more, 10 MW or more, 15 MW or more and / or 20 MW or more, for receiving power (30) from the power bundling device (8) of the wind turbines (1) of the wind farm (19).

11. A wind farm (19) comprising a plurality of wind turbines (1) according to any one of claims 1 to 7, and / or one or more central power facilities (20) according to any one of claims 8 to 10.

12. A method for operating a wind farm (19) comprising a plurality of wind turbines (1) according to any one of claims 1 to 7 and one or more central power facilities (20) according to any one of claims 8 to 10, the method comprising: receiving (S1) a data signal (35) by a central control unit (40) of the central power facility (20) indicating that a wind turbine (1a) of the wind farm (19) is idle, determining (S2) by the central control unit (40) a power supply scheme for supplying power (16) to the idle wind turbines (1a) by power bundling, and Electromagnetic radiation (10) is transmitted (S4) from the at least one transmitting antenna (18) of the central power facility (20) and / or from at least one transmitting antenna (29b) of another wind turbine (1b) of the wind farm (19) acting as a power source (43) to the idle wind turbine (1a) directly or via one or more further wind turbines (1d) of the wind farm (19) acting as a relay station (44).

13. The method according to claim 12, wherein determining the power supply scheme comprises: determining a first line of sight (A) between the at least one transmitting antenna (18) of the central power facility (20) and the at least one receiving antenna (9a) of the idle wind turbine (1a), determining a second line of sight (B) between the at least one transmitting antenna (29b) of the other wind turbine (1b) acting as a power source (43) and the at least one receiving antenna (9a) of the idle wind turbine (1a), and / or Determine one or more third lines of sight (C1, C2) between corresponding receiving antennas (9a, 9b, 9c, 9d) and transmitting antennas (18, 29a, 29b, 29c, 29d) of each member of a supply chain (45), the members of the supply chain (45) including the central power facility (20) or the other wind turbine (1b) acting as a power source (43), one or more additional wind turbines (1d) of the wind farm (19) acting as a relay station (44), and the idle wind turbine (1a).

14. The method according to claim 13, comprising: orienting (S3) the at least one transmitting antenna (18) of the central power facility (20) and the at least one receiving antenna (9a) of the idle wind turbine (1a) according to the determined first line of sight (A), orienting (S3) the at least one transmitting antenna (29b) of the other wind turbine (1b) acting as a power source (43) and the at least one receiving antenna (9a) of the idle wind turbine (1a) according to the determined second line of sight (B), and / or The at least one transmitting antenna (18) of the central power facility (20) or the at least one transmitting antenna (29b) of the other wind turbine (1b) serving as a power source (43), the at least one receiving antenna (9d) and the at least one transmitting antenna (29d) of each of the one or more additional wind turbines (1d) of the wind farm (19) serving as a relay station (44), and / or the at least one receiving antenna (9a) of the idle wind turbine (1a) are oriented (S3) according to the determined multiple third lines of sight (C1, C2).

15. A method for installing a wind turbine (1'), comprising: erecting (S1') a wind turbine (1') at a wind power collection site (S), at least one receiving antenna (9') for power bundling is arranged (S2') at the structure (5') of the wind turbine (1'), transmitting (S3') electrical power (16') to the wind turbine (1') by power bundling, wherein electromagnetic radiation (10') is transmitted from at least one transmitting antenna (18) arranged remote from the wind turbine (1') to at least one receiving antenna (9') of the wind turbine (1') and the electromagnetic radiation (10') is converted into an electric current (11'), supplying (S4) the electric current (11') from the receiving antenna (9') to one or more electrical devices (12') of the wind turbine (1'), providing (S5') a cable connection (46) from a remote location to said wind turbine (1'), and The at least one receiving antenna (9') is removed (S6') from the structure (5') of the wind turbine (1').

Images