WO2010063562A2 - Rotor conçu pour une éolienne - Google Patents

Rotor conçu pour une éolienne Download PDF

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Publication number
WO2010063562A2
WO2010063562A2 PCT/EP2009/065259 EP2009065259W WO2010063562A2 WO 2010063562 A2 WO2010063562 A2 WO 2010063562A2 EP 2009065259 W EP2009065259 W EP 2009065259W WO 2010063562 A2 WO2010063562 A2 WO 2010063562A2
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
threaded spindle
drive
blade
axis
Prior art date
Application number
PCT/EP2009/065259
Other languages
German (de)
English (en)
Other versions
WO2010063562A3 (fr
Inventor
Ralf Hagedorn
Christoph Kattenbeck
Andreas BÜCKER
Norbert Mülhoff
Original Assignee
Ssb-Antriebstechnik Gmbh & Co. Kg
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 Ssb-Antriebstechnik Gmbh & Co. Kg filed Critical Ssb-Antriebstechnik Gmbh & Co. Kg
Publication of WO2010063562A2 publication Critical patent/WO2010063562A2/fr
Publication of WO2010063562A3 publication Critical patent/WO2010063562A3/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
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/022—Adjusting aerodynamic properties of the blades
    • F03D7/0224—Adjusting blade pitch
    • 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
    • F05B2260/76—Adjusting of angle of incidence or attack of rotating blades the adjusting mechanism using auxiliary power sources
    • 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 invention relates to a rotor for a wind turbine, with a rotor hub, at least one rotatably mounted on the rotor hub about a blade axis rotor blade, at least one threaded spindle mechanism connected between the rotor hub and the rotor blade and connected to both the rotor hub and the rotor blade is, wherein the rotor blade is rotated by operating the threaded spindle mechanism relative to the rotor hub about the blade axis or can be.
  • the invention further relates to the use of a rotor for varying the rotor speed of a wind energy plant.
  • DE 10 2005 051 912 A1 discloses an arrangement for supporting at least three rotor blades, comprising a rotor blade bearing for pivoting the rotor blades about their respective main axis, which is designed so that the main axis of one of the rotor blades has a main intersection with the main axes of the other two wherein the two intersection points are spaced from each other.
  • the rotor blade is formed in a region of the rotor blade bearing for rotating the rotor blade with means to which transfer means for engagement are drivable, which are drivable by drive means comprising a screw drive or a ball screw drive.
  • DE 199 48 997 A1 describes a single blade adjustment for wind turbines, comprising two at at least two mutually movable portions of a substantially arranged in the cutting plane of the leaf connection rocker, a linear extension generating drives, each one end of the rocker via a respective pivotal connection with a force-transmitting Linkage to the hub and one Element is provided on the sheet to be adjusted.
  • the linear actuator with a smaller stroke is designed, for example, as an electrospindle drive.
  • an electric motor could be provided with a threaded spindle which, depending on the direction of rotation of the electric motor, can be driven into or pulled out of it.
  • the same sequence of movements could be implemented as with a hydraulic cylinder, in which the piston rod is driven into or out of the cylinder, depending on the pressurization.
  • a special electric motor would be required for this solution, increasing the cost of the threaded spindle mechanism.
  • the invention has the object to be able to realize a rotor of the type mentioned as cost effective.
  • the rotor for a wind turbine comprises a rotor hub, at least one rotor blade rotatably mounted on the rotor hub about a blade axis, and at least one threaded spindle mechanism connected between the rotor hub and the rotor blade and connected to both the rotor hub and the rotor blade.
  • the rotor blade is or can be rotated about the blade axis by actuating the threaded spindle mechanism relative to the rotor hub
  • the Screw mechanism has a drive, a gear, a spindle nut and, preferably with this screw-connected, threaded spindle which is arranged outside of the drive and coupled thereto with the interposition of the transmission.
  • the threaded spindle is screwed in particular in the spindle nut.
  • the threaded spindle is arranged outside the drive and coupled or connected thereto with the interposition of the transmission, a conventional electric motor can be used as drive. As a result, the cost of the threaded spindle mechanism can be kept relatively low.
  • the threaded spindle is arranged outside the drive
  • the drive and the threaded spindle are arranged separately and / or spatially separated from each other.
  • the threaded spindle and the drive preferably have a close spatial proximity to one another.
  • the threaded spindle and the drive are seated in a common housing, provided they are arranged separately and / or spatially separated from each other within the housing. In this case, preferably, the transmission is arranged in the housing.
  • the transmission preferably comprises a gear transmission, a chain drive and / or a belt drive or is designed as a gear transmission, chain drive and / or belt drive.
  • the threaded spindle is rotatable about its longitudinal axis.
  • the drive has a drive shaft, which is coupled with the interposition of the transmission with the threaded spindle.
  • the drive is an electric drive, such as an electric motor.
  • the drive has at least one stator and at least one rotatable relative to this rotor, which is non-rotatably coupled to the or a drive shaft (motor shaft) and preferably located on this.
  • the threaded spindle is arranged outside the drive, it should be understood in particular that the threaded spindle outside of the stator and Rotor and / or outside of the assembly formed by stator, rotor and drive shaft is arranged.
  • the threaded spindle and the spindle nut are preferably articulated.
  • the rotor hub and the rotor blade each form a component, wherein the spindle nut on a first of the components articulated, in particular pivotally and / or rotatably mounted, and the threaded spindle on a second of the components articulated, in particular pivotally and / or rotatably mounted.
  • the threaded spindle is preferably rotatably mounted about its longitudinal axis. The articulated mounting of the threaded spindle takes place e.g.
  • the articulated mounting of the threaded spindle takes place about at least two hinge axes which are perpendicular to the longitudinal axis of the threaded spindle and perpendicular to each other.
  • the articulated mounting of the spindle nut takes place e.g. about at least one hinge axis which extends in particular perpendicular to the longitudinal axis of the threaded spindle.
  • the articulated mounting of the spindle nut takes place about at least two hinge axes which are perpendicular to the longitudinal axis of the threaded spindle and perpendicular to each other.
  • the spindle nut is in particular on the rotor blade and the threaded spindle is mounted in particular on the rotor hub, so that the first component is formed by the rotor blade and the second component of the rotor hub.
  • a tilting of the threaded spindle mechanism can be done on the one hand in a cross-sectional plane of the rotor blade, on the other hand, but also perpendicular thereto.
  • the spindle nut is articulated by means of a first articulation on the first component and the threaded spindle by means of a second articulation mounted on the second component, wherein each of the joints has one, two or at least two rotational degrees of freedom.
  • universal joints can be used as suitable joints.
  • the joints are designed as ball joints.
  • the threaded spindle is preferably mounted by means of at least one bearing about its longitudinal axis rotatably mounted on the second joint.
  • the at least one bearing is a roller bearing, but alternatively the bearing may also be designed as a sliding bearing.
  • the at least one bearing is attached directly or indirectly to the second joint.
  • the threaded spindle is secured or fixed to the bearing or to an additional bearing in the axial direction.
  • the axial direction designates in particular the direction of the longitudinal axis of the threaded spindle. If the additional bearing is present, this is preferably fastened to the second joint.
  • the at least one bearing and / or the drive and / or the transmission are preferably fastened to a holder, which is articulated by means of the second articulation to the second component.
  • a holder which is articulated by means of the second articulation to the second component.
  • the additional bearing is attached to the holder, if this is available.
  • the threaded spindle mechanism preferably has a position sensor, by means of which e.g. the rotation of the rotor blade relative to the rotor hub is or can be determined.
  • the threaded spindle is connected to the position sensor.
  • the invention further relates to a wind energy plant with a machine carrier and a rotatably mounted on the machine frame about a rotor axis and driven by wind power or driven rotor, which is mechanically coupled to an electric generator which is driven by the rotor or can be.
  • the rotor is preferably a rotor according to the invention, which can be developed according to all mentioned embodiments.
  • the at least one rotor blade is rotatable relative to the rotor hub about its blade axis and thereby the rotational speed of the rotor, and thus preferably also the rotational speed of the generator, variable.
  • the invention also relates to the use of a rotor for varying the rotor speed of a wind turbine with a machine carrier on which the rotor driven by a rotor axis and by wind power is rotatably mounted and mechanically coupled to an electrical generator which is driven by the rotor.
  • the rotor is preferably a rotor according to the invention, which can be developed according to all mentioned embodiments.
  • the at least one rotor blade is rotated relative to the rotor hub about its blade axis, so that the rotational speed of the rotor, and thus preferably also the rotational speed of the generator, changes.
  • FIG. 1 is a schematic representation of a wind turbine with a rotor according to the invention
  • FIG. 2 shows a schematic representation of a threaded spindle mechanism of the rotor shown in FIG. 1 according to a first embodiment of the invention
  • FIG. 3 is a partial side view of the threaded spindle mechanism of FIG. 2,
  • FIG. 4 is another partial side view of the threaded spindle mechanism of FIG. 2,
  • FIG. 5 is a schematic representation of a threaded spindle mechanism of the apparent from Fig. 1 rotor according to a second embodiment of the invention
  • Fig. 6 is a partial side view of the threaded spindle mechanism of FIG. 5 and
  • FIG. 7 is another partial side view of the threaded spindle mechanism of FIG. 5th From Fig. 1, a wind turbine 1 can be seen, wherein a standing on a foundation 2 tower 3 is connected at its end remote from the foundation 2 with a machine house 4.
  • a machine carrier 5 is arranged, on which a rotor 6 is rotatably mounted about a rotor axis 7, which has a rotor hub 8 and associated rotor blades 9 and 10 which are each about their blade axis 11, 12 rotatable relative to the rotor hub 8 ,
  • Each rotor blade 9, 10 is mechanically coupled to an adjusting drive 13, 14, by means of which the respective rotor blade 9, 10 can be rotated about the associated blade axis 11, 12.
  • the rotor 6 is rotated by wind power 15 about the rotor axis 7 and is mechanically coupled to an electric generator 16 which is disposed in the machine house 4 and fixed to the machine frame 5.
  • a wind turbine control 17 is provided, by means of which, among other things, the adjusting drives 13 and 14 are controlled.
  • FIG. 2 is a schematic view of the apparent from Fig. 1 adjusting drive 13 according to a first embodiment of the invention can be seen, which is designed as a threaded spindle mechanism.
  • the adjusting drive 13 has a spindle nut 18, which is articulated on the rotor blade 9.
  • a threaded spindle 19 is screwed, which is rotatably mounted about its longitudinal axis 25 by means of a bearing 20 on a bracket 21.
  • the threaded spindle 19 is secured to the bearing 20 in the axial direction.
  • An electric drive 22 is attached to the bracket 21 and coupled by means of a gear 23 with the threaded spindle 19 so that it is rotated by the drive 22 about its longitudinal axis 25 or can be.
  • the gear 23 is formed as a belt drive and has a non-rotatably seated on the threaded spindle 19 pulley 26, a rotatably connected to the drive shaft 27 of the drive 22 pulley 28 and a belt 29 which sits on the two pulleys 26 and 28.
  • the gear 23 may be formed as a chain drive, the pulleys 26 and 28 is replaced by a sprocket and the belt 29 by a chain.
  • On the holder 21 sits a position sensor 30 which is coupled to the threaded spindle 19 and a rotation of the threaded spindle 19th characterized issuing electrical signal to the wind turbine control 17 or can deliver.
  • the spindle nut 18 is not rotatable about the axis 25. If now the threaded spindle 19 is rotated about the axis 25, then the spindle nut 18 shifts along the axis 25, resulting in a rotation of the rotor blade 9 about the blade axis 11 relative to the rotor hub 8. If the direction of rotation of the threaded spindle 19 is reversed, then the spindle nut 18 is displaced in the opposite direction along the axis 25, resulting in a rotation of the rotor blade 9 about the blade axis 11 in the opposite direction. The opposite directions in which the spindle nut 18 can be moved along the axis 25 are indicated by the double arrow 24.
  • Fig. 3 shows a partial side view of the threaded spindle mechanism 13 according to the first embodiment, wherein it can be seen that the holder 21 is connected by means of a ball joint 31 with the rotor hub 8.
  • FIG. 4 shows a partial side view of the threaded spindle mechanism 13 according to the first embodiment, Fig. 4, wherein it can be seen that the spindle nut 18 is connected by means of a ball joint 32 with the rotor blade 9.
  • the adjusting drive 14 is formed corresponding to the adjusting drive 13.
  • FIG. 5 shows a schematic view of the adjusting drive 13 shown in FIG. 1 and designed as a threaded spindle mechanism according to a second embodiment of the invention, identical or similar features to the first embodiment being denoted by the same reference numerals as in the first embodiment.
  • the adjusting drive 13 has a spindle nut 18, which is articulated on the rotor blade 9.
  • a threaded spindle 19 is screwed, which is rotatably supported by a bearing 20 about its longitudinal axis 25 on a holder 21 and fixed in the axial direction.
  • An electric drive 22 is attached to the bracket 21 and coupled by means of a gear 23 with the threaded spindle 19 so that it is rotated by the drive 22 about its longitudinal axis 25 or can be.
  • the gear 23 is designed as a gear transmission and has a rotationally fixed on the threaded spindle 19 seated gear 33, a rotatably connected to the drive shaft 27 of the drive 22 toothed wheel 34 and designed as a gear intermediate wheel 35 which is rotatably supported by means of a bearing 36 to the holder 21 and meshes with the gears 33 and 34.
  • gears 33 and 34 are coupled together with the interposition of a plurality of gears.
  • a position sensor 30 which is coupled to the threaded spindle 19 and the rotation of the threaded spindle 19 characterizing electrical signal to the wind turbine control 17 outputs or can deliver.
  • the spindle nut 18 is not rotatable about the axis 25. If now the threaded spindle 19 is rotated about the axis 25, then the spindle nut 18 shifts along the axis 25, resulting in a rotation of the rotor blade 9 about the blade axis 11 relative to the rotor hub 8. If the direction of rotation of the threaded spindle 19 is reversed, then the spindle nut 18 is displaced in the opposite direction along the axis 25, resulting in a rotation of the rotor blade 9 about the blade axis 11 in the opposite direction. The opposite directions in which the spindle nut 18 can be moved along the axis 25 are indicated by the double arrow 24.
  • Fig. 6 shows a partial side view of the threaded spindle mechanism 13 according to the second embodiment, wherein it can be seen that the holder 21 is connected by means of a particular designed as a ball joint joint 31 with the rotor hub 8.
  • FIG. 4 Another partial side view of the threaded spindle mechanism 13 according to the second embodiment, Fig. 4, wherein it can be seen that the spindle nut 18 is connected by means of a particular designed as a ball joint joint 32 with the rotor blade 9.
  • the adjustment drive 14 is formed corresponding to the adjustment drive 13 according to the first or the second embodiment. LIST OF REFERENCE NUMBERS

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (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 un rotor conçu pour une éolienne (1), comprenant un moyeu de rotor (8), au moins une pale de rotor (9) montée sur le moyeu de rotor (8) de manière à effectuer un mouvement de rotation autour d'un axe de pale (11), au moins un mécanisme à broche filetée (13) qui est monté entre le moyeu de rotor (8) et la pale de rotor (9) et qui est relié avec le moyeu de rotor (8) et la pale de rotor (9). Selon l'invention, cette pale de rotor (9) décrit ou peut décrire un mouvement rotatif autour de l'axe de pale (11) par rapport au moyeu de rotor (8) lorsque le mécanisme à broche filetée (13) est actionné. En outre, le mécanisme à broche filetée (13) comprend un entraînement (22), une transmission (23), un écrou de moyeu (18) et une broche filetée (19) qui est disposée en dehors de l'entraînement (22) et qui est accouplée avec celui-ci par l'intermédiaire de la transmission (23).
PCT/EP2009/065259 2008-12-03 2009-11-16 Rotor conçu pour une éolienne WO2010063562A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008055473.1 2008-12-03
DE102008055473A DE102008055473A1 (de) 2008-12-03 2008-12-03 Rotor für eine Windenergieanlage

Publications (2)

Publication Number Publication Date
WO2010063562A2 true WO2010063562A2 (fr) 2010-06-10
WO2010063562A3 WO2010063562A3 (fr) 2010-10-21

Family

ID=42145313

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/065259 WO2010063562A2 (fr) 2008-12-03 2009-11-16 Rotor conçu pour une éolienne

Country Status (2)

Country Link
DE (1) DE102008055473A1 (fr)
WO (1) WO2010063562A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120189445A1 (en) * 2009-10-07 2012-07-26 Ssb Wind Systems Gmbh & Co. Kg Rotor for a wind turbine
US9255568B2 (en) * 2009-11-26 2016-02-09 Ssb Wind Systems Gmbh & Co. Kg Rotor for a wind turbine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202012102147U1 (de) 2012-06-12 2012-10-11 Kokinetics Gmbh Vorrichtung zur Verstellung eines Rotorblatts
DE102012105073A1 (de) 2012-06-12 2013-12-12 Kokinetics Gmbh Vorrichtung zur Verstellung eines Rotorblatts

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2159584A (en) * 1984-05-21 1985-12-04 Taylor Woodrow Const Ltd Pitch control apparatus
DE4221783A1 (de) * 1992-07-03 1994-01-05 Klinger Friedrich Prof Dr Ing Vorrichtung zur Verstellung von Rotorblättern
ES2308911A1 (es) * 2006-12-05 2008-12-01 GAMESA INNOVATION & TECHNOLOGY, S.L. Sistema de cambio de paso variable accionado electricamente.
EP1998042A1 (fr) * 2007-05-30 2008-12-03 ICEC Holding AG Unité de rotor et son utilisation

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
US5584655A (en) 1994-12-21 1996-12-17 The Wind Turbine Company Rotor device and control for wind turbine
DE19752234C2 (de) * 1997-11-26 1999-12-09 Hanning Elektro Werke Antriebsvorrichtung für hin- und hergehende Schwenkbewegungen
DE19948997B4 (de) 1999-10-11 2005-04-14 Aerodyn Engineering Gmbh Einzelblattverstellung für Windenergieanlagen
US7071578B1 (en) * 2002-01-10 2006-07-04 Mitsubishi Heavy Industries, Ltd. Wind turbine provided with a controller for adjusting active annular plane area and the operating method thereof
DE202004009839U1 (de) * 2004-06-23 2005-11-03 Dewert Antriebs- Und Systemtechnik Gmbh & Co Kg Verstellantrieb
DE202005011632U1 (de) * 2005-07-20 2006-11-30 Dewert Antriebs- Und Systemtechnik Gmbh & Co. Kg Getriebemotor
DE102005051912A1 (de) 2005-10-29 2007-05-03 Ab Skf Anordnung
DE102006012009A1 (de) * 2006-03-14 2007-09-20 Robert Bosch Gmbh Positionsmesseinrichtung für eine Rotorblattverstelleinrichtung
DE602007002994D1 (de) * 2007-05-25 2009-12-10 Siemens Ag Vorrichtung zum Einstellen des Einstellwinkels eines Rotorblattes einer Windenergieanlage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2159584A (en) * 1984-05-21 1985-12-04 Taylor Woodrow Const Ltd Pitch control apparatus
DE4221783A1 (de) * 1992-07-03 1994-01-05 Klinger Friedrich Prof Dr Ing Vorrichtung zur Verstellung von Rotorblättern
ES2308911A1 (es) * 2006-12-05 2008-12-01 GAMESA INNOVATION & TECHNOLOGY, S.L. Sistema de cambio de paso variable accionado electricamente.
EP1998042A1 (fr) * 2007-05-30 2008-12-03 ICEC Holding AG Unité de rotor et son utilisation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120189445A1 (en) * 2009-10-07 2012-07-26 Ssb Wind Systems Gmbh & Co. Kg Rotor for a wind turbine
US9004867B2 (en) * 2009-10-07 2015-04-14 SSB Wind Systems GmbH & Co., KG Rotor for a wind turbine
US9255568B2 (en) * 2009-11-26 2016-02-09 Ssb Wind Systems Gmbh & Co. Kg Rotor for a wind turbine

Also Published As

Publication number Publication date
WO2010063562A3 (fr) 2010-10-21
DE102008055473A1 (de) 2010-06-10

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