WO2017207491A1 - Éolienne et mécanisme de réglage de l'angle de pas d'une éolienne - Google Patents

Éolienne et mécanisme de réglage de l'angle de pas d'une éolienne Download PDF

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Publication number
WO2017207491A1
WO2017207491A1 PCT/EP2017/062898 EP2017062898W WO2017207491A1 WO 2017207491 A1 WO2017207491 A1 WO 2017207491A1 EP 2017062898 W EP2017062898 W EP 2017062898W WO 2017207491 A1 WO2017207491 A1 WO 2017207491A1
Authority
WO
WIPO (PCT)
Prior art keywords
drive
pitch
wind turbine
rotor blade
rotor
Prior art date
Application number
PCT/EP2017/062898
Other languages
German (de)
English (en)
Inventor
Frank Knoop
Wilko Gudewer
Rainer SCHLÜTER
Original Assignee
Wobben Properties Gmbh
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 Wobben Properties Gmbh filed Critical Wobben Properties Gmbh
Publication of WO2017207491A1 publication Critical patent/WO2017207491A1/fr

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
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/065—Rotors characterised by their construction elements
    • F03D1/0658—Arrangements for fixing wind-engaging parts to a hub
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/50—Kinematic linkage, i.e. transmission of position
    • F05B2260/504—Kinematic linkage, i.e. transmission of position using flat or V-belts and pulleys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/70—Adjusting of angle of incidence or attack of rotating blades
    • F05B2260/79—Bearing, support or actuation arrangements therefor
    • 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 present invention relates to a wind turbine and a pitch drive for a wind turbine.
  • the angle of attack of the rotor blades, d. H. the pitch angle can be adjusted by means of motors. By adjusting the pitch angle, the wind turbine can respond to the prevailing wind speeds.
  • DE 42 21 783 C2 shows a device for adjusting rotor blades. This is done by a coaxial with the rotor hub arranged and hub side mounted transfer case, which is driven by a relative to the rotor hub rotating adjusting motor and the drive side is coupled to each rotor blade.
  • a transfer case a toothed belt is used, which connects in a spatial arrangement a pinion of a central adjusting motor via pulleys with the rotor blade. All pinions are connected to a brake disc, which can be braked by means of a brake caliper not rotating with the rotor hub.
  • DE 10 2008 013 926 A1 shows a device for adjusting an angle of attack of a rotor blade of a wind energy plant.
  • the device comprises a flexible, by a drive wheel movable Hülltriebsstrang over which the rotor blade is rotatable in the opposite direction to its longitudinal axis on.
  • DE 10 2013 206 878 A1 shows an adjusting device for a rotor blade of a wind energy plant.
  • the device comprises a belt drive with a drive and a belt.
  • the drive is fixed to a hub of the wind turbine and the belt is fixed to the rotor blade.
  • the belt transmits torque or rotational motion generated by the drive to the rotor blade.
  • the belt drive is designed such that the belt drive is arranged substantially within the hub region.
  • the belt is fixed in two places via fasteners fixed to an output flange. Via a pulley, which cooperates with the belt, the pitch of the rotor blade can be adjusted.
  • German Patent and Trademark Office has searched the following documents: DE 10 2008 013 864 B4; DE 10 2004 046 260 B4; DE 199 41 630 C1; DE 42 21 783 C2; It is an object of the present invention to provide a wind energy plant and a pitch drive for a wind energy plant, which can be operated more reliably and are less expensive to produce.
  • a wind energy plant which has an aerodynamic rotor with three rotor blades and three pitch drives for adjusting the pitch angle of the rotor blades.
  • Each pitch drive has first and second traction transfer elements each having first and second ends. The first end is fixedly coupled to one of the rotor blades.
  • the pitch drive has a first and second drive, which are each coupled to the second ends of the first and second tensile force transmission element for adjusting the pitch angle of the rotor blade and are operated in the opposite direction.
  • the first and second traction transfer element is configured as a rope or belt.
  • the first and second drive are each configured as a winch or a linear drive.
  • the first and second traction transfer elements are wound around the rotor blade at least once.
  • the invention also relates to a pitch drive for a wind turbine.
  • the invention relates to the idea to provide a wind turbine, as a pitch drive two traction transmission elements, z.
  • To adjust the pitch of the Rotor blade of the wind turbine are thus activated a first drive in a first direction and the second drive in the second direction, wherein one of the drives exerts a tensile force.
  • the drives can be used as winches or in each case as a linear drive.
  • two straps or ropes are provided, which at z. B. a common attachment point to the rotor blade root, a leaf flange or sheet adapter are attached.
  • the two belts are each connected to a drive, wherein the drives are then operated in the opposite direction to adjust the rotor blade.
  • the associated advantage is that a tension of the rotor blade on the rotor blade root is possible.
  • a larger adjustment range can be realized than in the prior art. This is particularly advantageous for maintenance and installation.
  • a single blade adjustment is possible.
  • the inventive design of the pitch drive is low-wear, since no more pinions are available.
  • two drives are used for pitch adjustment of the rotor blade, which can be configured as winches or linear drives. These drives can cause a rotational movement of the rotor blades about the blade axis by an applied tensile force.
  • One end of a rope or a belt, a chain or other pulling element is fixedly connected at the periphery to the blade flange bearing, the blade or the blade adapter.
  • the other end of the rope is either connected to a cable drum and is wound up or unwound or connected to a linear drive.
  • a linear drive is used, the linear movement of the drive can be converted into a rotational movement of the rotor blade by pulling on the rope.
  • two drives are used, since the ropes or belts can only be pulled, but not pushed. According to the invention, the two drives work at least partially synchronously. If the first drive pulls or winds up, then the other drive must give or unwind.
  • ropes which abut around the circumference of the Blattflantschers can be placed around the camp several times, so as to allow a larger displacement.
  • the cables can be guided, for example, by grooves in the outer ring of the bearing or an attachment.
  • FIG. 1 shows a schematic representation of a wind energy plant according to the invention
  • Fig. 2 shows a schematic representation of a rotor blade with a
  • FIG. 3 shows a schematic illustration of a pitch drive according to a first exemplary embodiment
  • FIG. 4 shows a schematic representation of a pitch drive according to a second exemplary embodiment.
  • Fig. 1 shows a schematic representation of a wind turbine according to the invention.
  • the wind energy plant 100 has a tower 102 and a nacelle 104 on the tower 102.
  • an aerodynamic rotor 106 with three rotor blades 200 and a spinner 1 10 is provided at the nacelle 104.
  • the aerodynamic rotor 106 is set into rotary motion by the wind during operation of the wind turbine and thus also rotates a rotor or rotor of a generator which is coupled directly or indirectly to the aerodynamic rotor 106.
  • the electric generator is disposed in the nacelle 104 and generates electrical energy.
  • the pitch angle or angle of attack of the rotor blades 200 can be changed by a pitch drive 300 in the area of the rotor blade root 220 of the respective rotor blades 200.
  • Fig. 2 shows a schematic representation of a rotor blade with a pitch drive.
  • the rotor blade 200 has a rotor blade tip 210 and a rotor blade root 220.
  • the pitch drive 300 By means of the pitch drive 300, the pitch angle of the rotor blade 200 can be adjusted.
  • the pitch drive 300 may engage the rotor blade root 220 to adjust the pitch angle.
  • the pitch drive may engage a blade flange or blade adapter.
  • the pitch drive 300 has a first and second tensile force transmission element 310, 320.
  • at least one groove 221 may be provided in the region of the rotor blade root 220, to which the first and second tensile force transmission element 310, 320 may at least partially rest.
  • the pitch drive 300 has a tensile force transmitting element z.
  • the first and second belts 310, 320 are each connected at a (common) attachment point 301 to the rotor blade root 220, a blade flange bearing or a blade adapter.
  • the respective second ends 312 are coupled to the first and second drivers 330, 340.
  • the first and second drives 330, 340 are each configured as a winch that receives and unwinds the second ends 312, 322 of the first and second belts 310.
  • the first and second winches 330, 340 are each operated in the opposite direction of rotation.
  • the pitch drive according to the second embodiment substantially corresponds to the pitch drive according to the first embodiment, wherein the first and second drive are each configured as a first and second linear drive 330. 340.
  • the first and second linear drive 330, 340 are operated in the reverse direction.
  • a tensile force is generated by the first and second winch according to the first embodiment, which is converted into a rotational movement of the rotor blade of the wind turbine. Since according to the invention two belts 310, 320 with two drives 330, 340 are used, a tension can be achieved by means of the pitch drive, whereby a stable pitch angle can be ensured.
  • the first and second winches 330, 340 need to be reversed to adjust the rotor blade, ie, when the first winch 330 winds up the belt or rope, the second winch must unwind the belt or rope.
  • a first movement of the first linear drive leads to a pulling on the belt or the rope, whereby this linear movement can be converted into a rotational movement of the rotor blade, since the first and second belts or the first ends of the first and second belts are fixedly coupled to the rotor blade.

Landscapes

  • 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)

Abstract

L'invention concerne une éolienne, laquelle comprend un rotor aérodynamique (106) pourvu de trois pales (200) et de trois mécanismes de réglage de l'angle de pas (300) destinés à régler les angles de pas des pales de rotor (200). Chaque mécanisme de réglage de l'angle de pas (300) comprend un premier et un deuxième élément de transmission de force de traction (310, 320) pourvus chacun d'une première et d'une deuxième extrémité (311, 321). La première extrémité est accouplée solidement à l'une des pales de rotor (200). Le mécanisme de réglage d'angle de pas (300) comprend un premier et un deuxième entraînement (330, 340), lesquels sont accouplés respectivement aux deuxièmes extrémités (312, 322) du premier et du deuxième élément de transmission de force de traction (310, 320) pour régler l'angle de pas de la pale de rotor et fonctionnent dans une direction opposée.
PCT/EP2017/062898 2016-06-02 2017-05-29 Éolienne et mécanisme de réglage de l'angle de pas d'une éolienne WO2017207491A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016110184.2A DE102016110184A1 (de) 2016-06-02 2016-06-02 Windenergieanlage und Pitchantrieb für eine Windenergieanlage
DE102016110184.2 2016-06-02

Publications (1)

Publication Number Publication Date
WO2017207491A1 true WO2017207491A1 (fr) 2017-12-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/062898 WO2017207491A1 (fr) 2016-06-02 2017-05-29 Éolienne et mécanisme de réglage de l'angle de pas d'une éolienne

Country Status (2)

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DE (1) DE102016110184A1 (fr)
WO (1) WO2017207491A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3324042A1 (fr) * 2016-11-18 2018-05-23 ContiTech Antriebssysteme GmbH Pale de rotor
WO2020007391A1 (fr) * 2018-07-02 2020-01-09 Vensys Energy Ag Dispositif de réglage de l'angle d'incidence d'une pale de rotor d'une éolienne
CN112969851A (zh) * 2018-10-12 2021-06-15 盖茨公司 风力涡轮机带驱动节距控制装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008013926A1 (de) * 2008-03-12 2009-09-17 Vensys Energy Ag Vorrichtung zur Verstellung des Anstellwinkels eines Rotorblattes einer Windenergieanlage
CN202370752U (zh) * 2011-12-13 2012-08-08 北京金风科创风电设备有限公司 风机变桨装置及风力发电机组
DE102013206878A1 (de) * 2012-04-16 2013-10-17 Suzlon Energy Gmbh Verstellvorrichtung für ein Rotorblatt einer Windturbine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4221783C2 (de) 1992-07-03 1994-06-16 Klinger Friedrich Prof Dr Ing Vorrichtung zur Verstellung von Rotorblättern
DE19941630C1 (de) * 1999-09-01 2001-03-08 Pvo Engineering Ltd Windenergieanlage mit verstellbaren Blättern
DE102004046260B4 (de) * 2004-09-23 2007-05-16 Nordex Energy Gmbh Verfahren zum Betreiben einer Vorrichtung zum Verstellen eines Blatteinstellwinkels sowie eine Verstellvorrichtung
DE102008013864B4 (de) * 2008-03-12 2014-12-18 Nordex Energy Gmbh Verfahren und Vorrichtung zum Drehen einer Komponente einer Windenergieanlage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008013926A1 (de) * 2008-03-12 2009-09-17 Vensys Energy Ag Vorrichtung zur Verstellung des Anstellwinkels eines Rotorblattes einer Windenergieanlage
CN202370752U (zh) * 2011-12-13 2012-08-08 北京金风科创风电设备有限公司 风机变桨装置及风力发电机组
DE102013206878A1 (de) * 2012-04-16 2013-10-17 Suzlon Energy Gmbh Verstellvorrichtung für ein Rotorblatt einer Windturbine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3324042A1 (fr) * 2016-11-18 2018-05-23 ContiTech Antriebssysteme GmbH Pale de rotor
WO2020007391A1 (fr) * 2018-07-02 2020-01-09 Vensys Energy Ag Dispositif de réglage de l'angle d'incidence d'une pale de rotor d'une éolienne
CN112969851A (zh) * 2018-10-12 2021-06-15 盖茨公司 风力涡轮机带驱动节距控制装置

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