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WO2003058063A1 - Chauffage pour pale de rotor - Google Patents

Chauffage pour pale de rotor Download PDF

Info

Publication number
WO2003058063A1
WO2003058063A1 PCT/DE2003/000063 DE0300063W WO03058063A1 WO 2003058063 A1 WO2003058063 A1 WO 2003058063A1 DE 0300063 W DE0300063 W DE 0300063W WO 03058063 A1 WO03058063 A1 WO 03058063A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotor blade
heater according
heating layer
cavity
heating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/DE2003/000063
Other languages
German (de)
English (en)
Inventor
Christina Musekamp
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE10390033T priority Critical patent/DE10390033D2/de
Priority to AU2003205519A priority patent/AU2003205519A1/en
Publication of WO2003058063A1 publication Critical patent/WO2003058063A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/30—Lightning protection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/40—Ice detection; De-icing means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • the invention relates to a rotor blade heater according to the preamble of claim 1.
  • Rotor blades such as those used in particular in wind turbines, are generally hollow.
  • the rotor blades are usually made of an electrically non-conductive material, for example to avoid lightning strikes and to enable weight-reduced production. Particularly at temperatures around freezing point and a high degree of air humidity, weather phenomena can occur, which are critical for the rotor blades in several respects.
  • Thunderstorms can develop even at temperatures around freezing, whereby there is always a risk of severe damage or failure of the entire system due to a crash.
  • One measure already mentioned to counteract such failures of a wind power plant is the manufacture of the rotor blades from electrically non-conductive materials.
  • the invention is based on the object of providing a rotor blade heater which is simple in structure, has a high degree of efficiency and, if possible, can also be activated at least temporarily and / or at least in the critical areas of a rotor blade during operation of the wind turbine.
  • the avoidance of the risk of lightning strikes should be taken into account.
  • a rotor blade heater according to the invention has an electrically conductive heating layer which at least temporarily and / or at least in sections adapts to the geometry of the cavity in the cavity of each rotor blade.
  • This rotor blade heating as it can be used not only for wind turbines, but also for all types of propellers, is very simple, can be manufactured inexpensively and enables flexible use depending on the weather conditions, without the system operated with it Must be brought to a standstill.
  • the rotor blade heater serves the purpose of protecting the rotor blades equipped therewith against ice infestation or of freeing infected areas from ice without requiring complex mechanics.
  • the heat energy generated generates measurable infrared radiation, so that an additional safety aspect can be guaranteed.
  • the heat energy emitted can be recorded by infrared measuring devices, such as those found in aircraft. This means that these wind turbines are visible to aircraft with appropriate security technology, even if the weather conditions would not normally make this possible.
  • a rotor blade heater according to the invention consequently emits far infrared radiation (FIR).
  • FIR far infrared radiation
  • the temporary use of the rotor blade heater according to the invention enables the removal of layers of ice only when it is really necessary. This measure also leads to energy savings, since the rotor blade heating only has to be operated when there is actually a risk of ice infestation or if there is already one.
  • a sensible embodiment of a rotor blade heater according to the invention can be seen, for example, in the fact that the heating layer consists of a film, a fabric or a fleece which is loosely inserted into the cavity of the rotor blade or attached to the inner surface of the cavity or integrated into the inner surface.
  • the materials for the heating layer are only mentioned here as examples:
  • All designs can be designed as self-supporting, solidified or else as elastic, flexible, preferably band-shaped materials. Such band-shaped strips can be produced very economically, are easy to process and have a low volume and weight.
  • the carbon or carbon fibers have an electrical conductivity with a resistance, so that this provides an effective heating element with high efficiency.
  • these carbon fibers can be supported by polyester threads or can also be integrated into a film. This allows fabric or fabric-like structures to be produced which, after their use in the cavity of the rotor blade, are provided with electrodes for the power supply and can thus be used without major assembly work. It is particularly advantageous to design the rotor blade heater as a thin-layer, flexible material, it being possible for the heating layer to be accommodated within an elastic or also in a rigid film. It is important that the materials can be easily adapted to the geometry of the inner surface of the cavity of the rotor blade.
  • connection of different materials with each other is within the scope of the inventive concept.
  • a fabric made of mentioned materials can be provided in connection with a plastic fiber.
  • the heating layer can consist of carbon fibers or carbon fiber composite materials or only have these materials, which in turn can be designed as a woven or non-woven fabric or as a graphite emulsion.
  • the electrodes can also be used as a holder for the heating layer.
  • one heating layer can be sufficient to enable an effective removal of ice or to prevent ice infestation.
  • a plurality of heating layers one above the other which, for example, can also be switched on or off at different times.
  • a perforated or slotted heating layer of this type can be applied to a carrier material and then made into an integral part of the rotor blade, for example by casting with a liquid plastic.
  • the liquid plastic penetrates the heating layer in the sections of its perforation or slit and unites then with the carrier material so that the heating layer can be completely integrated into the material of the rotor blade.
  • the insulating layer which should preferably be on the inside of the cavity, allows the heat generated by the heating layer to escape to the outer surface of the component equipped with it almost without loss and in the shortest possible time, so that a very rapid removal of ice is possible.
  • the heating layer can be used not only in the area of the rotor blade, but also as a component of the rotor head and / or the rotor hub of a wind power plant or of a drive unit coupled to the wind power plant.
  • the rotor head, the rotor hub and the drive unit are provided with an insulating layer towards the core and insulated in such a way that the heat emitted by the heating layer penetrates to the outside almost without loss and in the shortest possible time.
  • the heating layer can be used not only to clear ice in the area of the critical zones of the rotor blades, but also in the area of the rotor head, the rotor hub and possibly other units on the wind turbine.
  • Known plastics or other materials can be used as insulation materials.
  • a heating layer that only temporarily adapts to the inner surface of the cavity of the rotor blade can also be realized by an embodiment in which the heating layer is loosely inserted into the cavity.
  • a volume-expandable hose element that can be inserted into the cavity of the rotor blade enables a direct contact between the heating layer and the inner surface of the cavity of the rotor blade.
  • the variant of loosely inserting the heating layer into the interior of the cavity is only one possible embodiment in which the expanded hose element presses the heating layer against the inner wall of the cavity.
  • the hose element is provided with the heating layer at least on a part of its outer surface or is enveloped by it as a whole.
  • the hose element inserted into the cavity of the rotor blade is inflated, for example, by means of compressed air and thus presses against the inner surface of the cavity of the rotor blade. After the corresponding heating layer has heated the rotor blade heating and the rotor blade has been freed of ice, the volume of the tube element can be reduced again and can be removed from the cavity.
  • a rotor blade heater that adapts to the geometry of the cavity is also hereby guaranteed.
  • a balloon or an inflatable tube can be used as the tube element.
  • At least one traction means is used to introduce the hose element into the cavity of the rotor blade or for the opposite movement of the hose element.
  • two traction means are preferably used which, for example, enable the hose element to be wound up and unwound by means of a drive unit.
  • An electric motor can advantageously be used as the drive unit Bring use, the volume increase of the hose element can be made possible by means of a compressor.
  • the entire rotor blade heater according to the invention can be operated by means of temperature sensors and thermometers and with the help of electronic controls and is therefore controllable or regulatable.
  • electronic controls and is therefore controllable or regulatable.
  • remote control in the sense of the invention, which is particularly useful in offshore wind turbines.
  • Figure 1 sections of a first embodiment of a
  • FIG. 2 a second embodiment of a rotor blade heater in a partially cut rotor blade
  • FIG. 3 shows the section profile HI - in from FIG. 2
  • FIG. 4 shows the section profile IV-IV from FIG. 2
  • FIG. 5 shows a schematically greatly simplified illustration of a
  • FIG. 6 Rotor blade heating with a hose element and FIG. 6: a section of a heating layer for the rotor hub of a wind turbine.
  • FIG. 1 shows a section of a first variant of a rotor blade heater according to the invention.
  • the end region of a rotor blade 2 is shown here, which overall consists of an electrically non-conductive material.
  • the rotor blade 2 has a cavity 1, on the inner surface 4 of which one Heating layer 3 is attached.
  • This heating layer 3 is supplied with an electrical voltage by means of two electrodes 5 and can thus be heated.
  • the electrodes 5 are therefore attached to the heating layer 3 in such a way that they are predominantly located in the area of the hub of the wind power plant.
  • the heating layer 3 is only applied in the critical areas of the rotor blade 2. These are especially the leading edges and the tips.
  • the direction of rotation of the rotor blade 2 is illustrated by the arrow A in the right part of the figure in FIG.
  • the activated heating layer 3 heats the outer surface 7 of the rotor blade in the shortest possible time and thus an infestation with an ice layer can be prevented or existing ice can be defrosted.
  • the use of the rotor blade heater shown is also possible during the operation of the wind turbine. A shutdown is not necessary.
  • FIG. 2 shows a further embodiment of a rotor blade heater according to the invention.
  • the rotor blade 2 is also moved in the direction of arrow A in this variant. It has a cavity 1, in which a guide 10 is integrated.
  • a hose element 9 that can be wound up or unwound is inserted between the inner surface 4 of the cavity 1 and the guide 10.
  • This hose element 9 is coupled at its two ends to a traction means 11 and 13, respectively.
  • the hose element 9 can be wound up or unwound by means of these traction means, wherein the guide 10 enables the movement of the hose element along the inner surface 4 of the cavity 1 of the rotor blade 2.
  • the hose element 9 does not become effective over the entire inner surface of the cavity 1, but only the critical areas of the Rotor blade 2 is acted upon by the tubular element 9.
  • a heating layer 3 is attached to the outer surface of the hose element 9. This is wound up or unwound with the hose element 9.
  • the hose element 9 is in turn designed to be volume-expandable, so that it can be inflated, for example, by means of a compressed air compressor. After unrolling the tube element 9, it is initially loosely between the guide 10 and the inner surface 4 of the rotor blade. After the compressor has been activated and the tube element 9 has been expanded to its final volume, the heating layer 3 is in direct contact with the inner surface 4 of the cavity 1 of the rotor blade 2.
  • the heating layer 3 is now activated, so that the heating of the outer surface 7 of the rotor blade 2 increases liberation from the ice layer that may be present there.
  • the arrows D and E symbolically represent the possible directions of movement of the traction means 11 and 13, respectively.
  • FIG. 3 shows a section through the tube element 9, which can be moved into or out of the cavity 1 of the rotor blade 2 above the guide 10. After the volume expansion of the tubular element 9 to its maximum size, this is due to the
  • FIG. 4 shows the traction means 13, as can also be moved back and forth between the guide 10 and the inner surface 4 of the cavity 1 of the rotor blade 2.
  • FIG. 5 shows, in a highly simplified manner, a possible variant of the operation of a rotor blade heater according to the invention.
  • the hose element 9 is in the manner described above along a guide 10 in the cavity 1 of the Rotor blade 2 movably guided. It can be wound up or unwound because there is a coupling with the drive shaft of a drive unit 12 via the traction means 11.
  • the drive shaft of the drive unit 12 is rotatable in both directions of movement. The possible directions of rotation are illustrated by arrow B in FIG. 5.
  • the surface of the tubular element is provided with the heating layer 3. Its volume is expandable until it comes to rest on the inner surface 4 of the cavity 1 of the rotor blade 2.
  • the volume expansion is made possible by a compressor 14 which can be coupled to the hose element 9 via a valve coupling 15.
  • the direction of movement C in FIG. 5 illustrates the coupling movement between the hose element 9 and the compressor 14 in the region of the valve coupling 15.
  • an insulation layer 8 can be provided below a heating layer 3 connected to the inner surface 4 of the cavity 1.
  • This insulation layer 8 enables the heat generated in the heating layer 3 to escape in the shortest possible time. The heat can thus escape in the direction of the outer surface 7 with almost no loss.
  • Such an insulation layer combination is also possible for the area of the rotor head or the rotor hub or a drive unit attached to the wind turbine.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Wind Motors (AREA)
  • Resistance Heating (AREA)

Abstract

Chauffage pour pale de rotor, tel qu'il peut être utilisé en particulier pour des installations éoliennes dont les pales (2) de rotor, possédant une cavité (1), sont constituées d'une matière électriquement non conductrice. Selon la présente invention, la cavité (1) de chaque pale (2) de rotor comporte un chauffage de pale de rotor sous forme de couche de chauffage (3) électriquement conductrice s'adaptant, au moins temporairement et / ou au moins sur un segment, à la géométrie de la cavité (1).
PCT/DE2003/000063 2002-01-11 2003-01-10 Chauffage pour pale de rotor Ceased WO2003058063A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE10390033T DE10390033D2 (de) 2002-01-11 2003-01-10 Rotorblattheizung
AU2003205519A AU2003205519A1 (en) 2002-01-11 2003-01-10 Rotor blade heating system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10200799A DE10200799A1 (de) 2002-01-11 2002-01-11 Rotorblattheizung für Windkraftanlagen
DE10200799.3 2002-01-11

Publications (1)

Publication Number Publication Date
WO2003058063A1 true WO2003058063A1 (fr) 2003-07-17

Family

ID=7711891

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2003/000063 Ceased WO2003058063A1 (fr) 2002-01-11 2003-01-10 Chauffage pour pale de rotor

Country Status (3)

Country Link
AU (1) AU2003205519A1 (fr)
DE (2) DE10200799A1 (fr)
WO (1) WO2003058063A1 (fr)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004057979A1 (de) * 2004-11-30 2006-06-01 Repower Systems Ag Rotorblatt
WO2007121501A1 (fr) * 2006-04-24 2007-11-01 Kummer, Ursula Procede et dispositif pour eliminer le givre de la surface des pales de rotor d'une installation eolienne
WO2012059466A1 (fr) * 2010-11-04 2012-05-10 Wobben, Aloys Pale de rotor à dispositif chauffant pour une éolienne
KR20120060581A (ko) * 2010-12-02 2012-06-12 대우조선해양 주식회사 풍력발전기의 블레이드 히팅 장치
CN102661250A (zh) * 2012-05-08 2012-09-12 国电联合动力技术有限公司 一种抗冰冻风机叶片
AT13020U1 (de) * 2011-03-02 2013-04-15 Wilic Sarl Windturbine mit einer Vereisungsschutzeinrichtung
EP2602455A1 (fr) * 2011-12-07 2013-06-12 Nordex Energy GmbH Pale de rotor d'éolienne dotée d'un élément chauffant électrique
CN103437949A (zh) * 2013-09-06 2013-12-11 北京金风科创风电设备有限公司 风力发电机叶片、风力发电机以及叶片除冰系统
CN103821665A (zh) * 2013-10-18 2014-05-28 河海大学常州校区 一种水平轴风力机叶片除冰装置
CN104179634A (zh) * 2013-05-21 2014-12-03 中航惠腾风电设备股份有限公司 一种具有防雷保护的电加热防冰除冰风轮叶片
ES2533230A1 (es) * 2013-10-03 2015-04-08 Gamesa Innovation & Technology, S.L. Sistema de protección frente a rayos con sistema antihielo integrado para palas de aerogenerador
DE102013222452A1 (de) * 2013-11-05 2015-05-07 Wobben Properties Gmbh Verfahren zum Betreiben einer Windenergieanlage
RU2591369C2 (ru) * 2011-05-31 2016-07-20 Висетек Ой Лопатка ветровой турбины и способ изготовления такой лопатки
CN108252878A (zh) * 2016-12-28 2018-07-06 北京金风科创风电设备有限公司 用于风力发电机组的叶片除冰设备和方法
EP3447284A1 (fr) 2017-08-24 2019-02-27 eno energy systems GmbH Pale de rotor d'une éolienne, procédé de mise en contact d'un revêtement électriquement conducteur sur une pale de rotor d'une éolienne et éolienne
CN109563806A (zh) * 2016-06-30 2019-04-02 维斯塔斯风力系统集团公司 堆叠布置结构中的汇流条
CN109931233A (zh) * 2019-04-12 2019-06-25 浙江运达风电股份有限公司 一种风力发电机组热鼓风除冰系统安全保护装置及方法
CN110198576A (zh) * 2018-02-27 2019-09-03 吴金珠 电热芯片结构、安装方法、成型方法及风力发电机组
CN110206694A (zh) * 2019-06-20 2019-09-06 天津爱思普信息技术有限公司 一种风力发电机组叶片防冰除冰系统的导电带制作方法
US10566799B2 (en) 2016-03-29 2020-02-18 Wobben Properties Gmbh Method for feeding electrical power into an electricity supply network with a wind park and wind park with black start
US10823152B2 (en) * 2016-03-01 2020-11-03 Borealis Wind Inc. Wind turbine blade de-icing systems and methods
US11088546B2 (en) 2016-04-05 2021-08-10 Wobben Properties Gmbh Method and wind turbine for feeding electric power
EP4600487A1 (fr) * 2024-02-12 2025-08-13 Nordex Energy SE & Co. KG Un élément chauffant pour une surface extérieure d'une pale de rotor d'éolienne

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US3218436A (en) * 1963-03-12 1965-11-16 Gen Motors Corp Electrical aircraft heater
DE1254264B (de) * 1958-04-24 1967-11-16 Goodrich Co B F Verfahren und Vorrichtung zum Herstellen eines geschichteten elektrischen Heizkoerpers von plattenfoermiger Gestalt
US4534886A (en) * 1981-01-15 1985-08-13 International Paper Company Non-woven heating element
US4926026A (en) * 1989-01-26 1990-05-15 Maintenance Concepts, Inc. Electrical de-icer device
WO1995015670A1 (fr) * 1993-11-30 1995-06-08 Alliedsignal Inc. Dispositif de chauffage composite electriquement conducteur et procede de fabrication de ce dispositif
US6145787A (en) * 1997-05-20 2000-11-14 Thermion Systems International Device and method for heating and deicing wind energy turbine blades
WO2000079128A1 (fr) * 1999-06-21 2000-12-28 Lm Glasfiber A/S Pale d'eolienne avec systeme de degivrage et paratonnerre

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1254264B (de) * 1958-04-24 1967-11-16 Goodrich Co B F Verfahren und Vorrichtung zum Herstellen eines geschichteten elektrischen Heizkoerpers von plattenfoermiger Gestalt
US3218436A (en) * 1963-03-12 1965-11-16 Gen Motors Corp Electrical aircraft heater
US4534886A (en) * 1981-01-15 1985-08-13 International Paper Company Non-woven heating element
US4926026A (en) * 1989-01-26 1990-05-15 Maintenance Concepts, Inc. Electrical de-icer device
WO1995015670A1 (fr) * 1993-11-30 1995-06-08 Alliedsignal Inc. Dispositif de chauffage composite electriquement conducteur et procede de fabrication de ce dispositif
US6145787A (en) * 1997-05-20 2000-11-14 Thermion Systems International Device and method for heating and deicing wind energy turbine blades
WO2000079128A1 (fr) * 1999-06-21 2000-12-28 Lm Glasfiber A/S Pale d'eolienne avec systeme de degivrage et paratonnerre

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004057979A1 (de) * 2004-11-30 2006-06-01 Repower Systems Ag Rotorblatt
DE102004057979B4 (de) * 2004-11-30 2014-01-16 Repower Systems Se Rotorblatt
DE102004057979C5 (de) * 2004-11-30 2019-09-26 Senvion Gmbh Rotorblatt
WO2007121501A1 (fr) * 2006-04-24 2007-11-01 Kummer, Ursula Procede et dispositif pour eliminer le givre de la surface des pales de rotor d'une installation eolienne
RU2567162C2 (ru) * 2010-11-04 2015-11-10 Воббен Пропертиз Гмбх Лопасть ротора с устройством подогрева для ветровой энергетической установки
CN103189644B (zh) * 2010-11-04 2016-04-13 乌本产权有限公司 具有用于风能设备的加热装置的转子叶片
AU2011325254B2 (en) * 2010-11-04 2016-07-07 Wobben Properties Gmbh Rotor blade with heating device for a wind turbine
CN103189644A (zh) * 2010-11-04 2013-07-03 乌本产权有限公司 具有用于风能设备的加热装置的转子叶片
US20130309092A1 (en) * 2010-11-04 2013-11-21 Wobben Properties Gmbh Rotor blade with heating device for a wind turbine
JP2013545016A (ja) * 2010-11-04 2013-12-19 ヴォッベン プロパティーズ ゲーエムベーハー 風力発電装置用の加熱装置を備えたロータブレード
WO2012059466A1 (fr) * 2010-11-04 2012-05-10 Wobben, Aloys Pale de rotor à dispositif chauffant pour une éolienne
EP2635807B1 (fr) 2010-11-04 2015-05-13 Wobben Properties GmbH Pale de rotor avec système de chauffage pour une éolienne
KR20120060581A (ko) * 2010-12-02 2012-06-12 대우조선해양 주식회사 풍력발전기의 블레이드 히팅 장치
KR101684639B1 (ko) * 2010-12-02 2016-12-08 대우조선해양 주식회사 풍력발전기의 블레이드 히팅 장치
AT13020U1 (de) * 2011-03-02 2013-04-15 Wilic Sarl Windturbine mit einer Vereisungsschutzeinrichtung
RU2591369C2 (ru) * 2011-05-31 2016-07-20 Висетек Ой Лопатка ветровой турбины и способ изготовления такой лопатки
US9482208B2 (en) 2011-12-07 2016-11-01 Nordex Energy Gmbh Wind turbine rotor blade having an electrical heating arrangement and method of making the same
EP2602455A1 (fr) * 2011-12-07 2013-06-12 Nordex Energy GmbH Pale de rotor d'éolienne dotée d'un élément chauffant électrique
CN102661250A (zh) * 2012-05-08 2012-09-12 国电联合动力技术有限公司 一种抗冰冻风机叶片
CN104179634A (zh) * 2013-05-21 2014-12-03 中航惠腾风电设备股份有限公司 一种具有防雷保护的电加热防冰除冰风轮叶片
CN103437949B (zh) * 2013-09-06 2016-05-11 北京金风科创风电设备有限公司 风力发电机叶片、风力发电机以及叶片除冰系统
CN103437949A (zh) * 2013-09-06 2013-12-11 北京金风科创风电设备有限公司 风力发电机叶片、风力发电机以及叶片除冰系统
CN104514691B (zh) * 2013-10-03 2019-06-21 歌美飒创新技术公司 用于风轮机叶片的集成有防结冰系统的防雷保护系统
CN104514691A (zh) * 2013-10-03 2015-04-15 歌美飒创新技术公司 用于风轮机叶片的集成有防结冰系统的防雷保护系统
ES2533230A1 (es) * 2013-10-03 2015-04-08 Gamesa Innovation & Technology, S.L. Sistema de protección frente a rayos con sistema antihielo integrado para palas de aerogenerador
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