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公开(公告)号：US11773828B2
公开(公告)日：2023-10-03
申请号：US17586400
申请日：2022-01-27
发明人： Victor March Nomen
CPC分类号： F03D80/30 , F03D80/40 , F05B2240/307 , F05B2280/6003
摘要： Provided is a blade for a wind turbine including a trailing edge and a leading edge, a lightning protection system with at least one lightning receptor on the blade tip for receiving lightning and at least one lightning down conductor for conducting a lightning current received by the lightning receptor to the blade root, and an ice formation prevention system with a conductive layer arranged along the leading edge, and a first connection terminal on the first end and a second connection terminal on the second end for connecting the layer with a power supply unit, the first connection terminal is connected with the lightning down conductor, wherein the first connection terminal partially contacts the layer and have a rear section connected to the layer and a front section that longitudinally extends towards the blade tip.
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公开(公告)号：US20220243704A1
公开(公告)日：2022-08-04
申请号：US17586400
申请日：2022-01-27
发明人： Victor March Nomen
摘要： Provided is a blade for a wind turbine including a trailing edge and a leading edge, a lightning protection system with at least one lightning receptor on the blade tip for receiving lightning and at least one lightning down conductor for conducting a lightning current received by the lightning receptor to the blade root, and an ice formation prevention system with a conductive layer arranged along the leading edge, and a first connection terminal on the first end and a second connection terminal on the second end for connecting the layer with a power supply unit, the first connection terminal is connected with the lightning down conductor, wherein the first connection terminal partially contacts the layer and have a rear section connected to the layer and a front section that longitudinally extends towards the blade tip.
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公开(公告)号：US20220220944A1
公开(公告)日：2022-07-14
申请号：US17557460
申请日：2021-12-21
摘要： A blade for a wind turbine including heating means connected to power cables, a lightning protection system including a down conductor, and surge protection devices is provided. The heating means include a first radiant element and a second radiant element arranged adjacent to each other around a leading edge of the blade, the first radiant element being connected to the power supply cables through respective electrical connectors at the respective connection points, and the down conductor is connected to each power supply cable at the connection points through the respective surge protection device, the second radiant element being connected to the first radiant element so that the second radiant element is electrically supplied only through the first radiant element.
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公开(公告)号：US11243238B2
公开(公告)日：2022-02-08
申请号：US16769037
申请日：2018-12-04
摘要： A method for warning about lightning activity in wind farms which is suitable for predicting the generation of upward lightning originating from the wind-driven power generators the wind farm and for warning about the possible generation is provided. To that end, in the method the presence or absence of a storm cell in the wind farm and/or in the vicinity thereof, within a radius of less than 400 km, is detected; the local electric field in the wind farm is measured, at least one atmospheric condition is identified or measured under given premises, and the probabilities of the generation of upward lightning originating from the wind-driven power generators of the wind farm are determined depending on the result of the measurements, identifications and detections, a warning signal being transmitted in the event that the determined probability exceeds a given threshold value.
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公开(公告)号：US20210262449A1
公开(公告)日：2021-08-26
申请号：US17177537
申请日：2021-02-17
摘要： An anti and/or de-icing blade and manufacturing method for said blade including a pressure side shell and a suction side shell, the shells including at least one electrical connector layer extending from the leading edge towards the trailing edge, at least one heating elements layer electrically in contact with the electrical connector layer, glass fabric layers at least inwardly in contact with the electrical connector or with heating elements layer, a connector component extending transversally through the glass fabric layers and being electrically connected with the electrical connector layer and with a metallic block which is drilled by an inter-connector so that the electrical connector layers from each shell are electrically connected and the blade is able to be heated when electrically fed from power source.
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公开(公告)号：US10718315B2
公开(公告)日：2020-07-21
申请号：US15149490
申请日：2016-05-09
摘要： The invention provides a lightning receptor arrangement (11, 12) for a wind turbine blade (10) comprising at least a self-threading screw (21) having a head (23) and a threaded shaft (25) as a the external metallic receptor element for receiving a lightning strike in one side of the wind turbine blade (10) and an internal element comprising an electrically conductive block (20) configured with at least an unthreaded hole (41) for cooperating with said threaded shaft (25) and connected to a down conductor (18) of a grounding arrangement. The internal element is joined to at least a shell (17) of the wind turbine blade (10) with an adhesive force capable of withstanding the torque applied to the self-threading screw (21) for threading it to the unthreaded hole (41).
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公开(公告)号：US11873798B2
公开(公告)日：2024-01-16
申请号：US17557460
申请日：2021-12-21
CPC分类号： F03D80/30 , B29C70/882 , B29D99/0025 , F03D80/301 , F03D80/40 , F03D80/401 , B29L2031/085 , F05B2230/50 , F05B2240/85
摘要： A blade for a wind turbine including heating means connected to power cables, a lightning protection system including a down conductor, and surge protection devices is provided. The heating means include a first radiant element and a second radiant element arranged adjacent to each other around a leading edge of the blade, the first radiant element being connected to the power supply cables through respective electrical connectors at the respective connection points, and the down conductor is connected to each power supply cable at the connection points through the respective surge protection device, the second radiant element being connected to the first radiant element so that the second radiant element is electrically supplied only through the first radiant element.
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公开(公告)号：US20220412320A1
公开(公告)日：2022-12-29
申请号：US17762507
申请日：2020-10-01
摘要： Wind turbine blades with de-icing and/or anti-icing systems including at least one heating unit disposed along the blade's length and between the blade's chord, wherein each heating unit in turn comprises a plurality of heating elements connected both in series and in parallel in a matrix configuration by overlaps or cross-adjacent junctions between adjacent heating elements order to change the electric heating current flow disposing of any additional terminals cables and further enabling to generate a gradually increasing heat flux from the blade root towards the blade tip and from the trailing edge towards the leading edge through each individual heating unit adapting accurately to heat flux demand and hence reducing energy consumption for de-icing and/or anti-icing.
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公开(公告)号：US20210231721A1
公开(公告)日：2021-07-29
申请号：US16769037
申请日：2018-12-04
摘要： A method for warning about lightning activity in wind farms which is suitable for predicting the generation of upward lightning originating from the wind-driven power generators the wind farm and for warning about the possible generation is provided. To that end, in the method the presence or absence of a storm cell in the wind farm and/or in the vicinity thereof, within a radius of less than 400 km, is detected; the local electric field in the wind farm is measured, at least one atmospheric condition is identified or measured under given premises, and the probabilities of the generation of upward lightning originating from the wind-driven power generators of the wind farm are determined depending on the result of the measurements, identifications and detections, a warning signal being transmitted in the event that the determined probability exceeds a given threshold value.
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公开(公告)号：US11668276B2
公开(公告)日：2023-06-06
申请号：US16897365
申请日：2020-06-10
发明人： Fernando García Ayerra , Olimpio Guerrero Buitrago , Joan Pau Guilera de Gispert , Victor March Nomen
IPC分类号： F03D1/06 , B29C70/52 , B29C70/68 , F03D80/30 , B29K105/12 , B29K307/04 , B29L31/08 , B29L31/36
CPC分类号： F03D1/0675 , B29C70/52 , B29C70/685 , F03D80/30 , B29K2105/12 , B29K2307/04 , B29L2031/085 , B29L2031/36
摘要： Provided is an electrical connection system for a wind turbine blade that allows sharing the current between all conductors, in order to avoid voltage differences between them, avoiding internal sparks between pultruded plates, in a spar cap of the wind turbine blade. A second aspect is a wind turbine which in turn includes the wind turbine blade including the electrical bonding system. A third aspect is a method for electrically connecting conductive caps in a wind turbine blade.
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