DE102013208463B4 - Method and device for producing a molded component and wind turbine - Google Patents

Method and device for producing a molded component and wind turbine Download PDF

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Publication number
DE102013208463B4
DE102013208463B4 DE102013208463.3A DE102013208463A DE102013208463B4 DE 102013208463 B4 DE102013208463 B4 DE 102013208463B4 DE 102013208463 A DE102013208463 A DE 102013208463A DE 102013208463 B4 DE102013208463 B4 DE 102013208463B4
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Prior art keywords
rotor
elements
wind turbine
rotor elements
twisting
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DE102013208463.3A
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DE102013208463A1 (en
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Gerhard Kopp
Michael Kriescher
Roland Schöll
Philipp Straßburger
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Deutsches Zentrum fuer Luft und Raumfahrt eV
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Deutsches Zentrum fuer Luft und Raumfahrt eV
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Priority to DE102013208463.3A priority Critical patent/DE102013208463B4/en
Priority to DE202013011772.9U priority patent/DE202013011772U1/en
Priority to ATGM181/2014U priority patent/AT14392U1/en
Priority to ATGM50028/2015U priority patent/AT14390U1/en
Publication of DE102013208463A1 publication Critical patent/DE102013208463A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
    • B29C70/347—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation combined with compressing after the winding of lay-ups having a non-circular cross-section, e.g. flat spiral windings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/32—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00—Subject matter not provided for in other groups of this subclass
    • B29D99/0025—Producing blades or the like, e.g. blades for turbines, propellers, or wings
    • B29D99/0028—Producing blades or the like, e.g. blades for turbines, propellers, or wings hollow blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • 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
    • F03D1/0675—Rotors characterised by their construction elements of the blades
    • 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
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/005—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor  the axis being vertical
    • 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
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/06—Rotors
    • F03D3/062—Rotors characterised by their construction elements
    • 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
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/06—Rotors
    • F03D3/062—Rotors characterised by their construction elements
    • F03D3/066—Rotors characterised by their construction elements the wind engaging parts being movable relative to the rotor
    • F03D3/067—Cyclic movements
    • F03D3/068—Cyclic movements mechanically controlled by the rotor structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
    • F01L2001/34483—Phaser return springs
    • 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
    • F05B2230/00—Manufacture
    • F05B2230/50—Building or constructing in particular ways
    • 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
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/21—Rotors for wind turbines
    • F05B2240/211—Rotors for wind turbines with vertical axis
    • F05B2240/214—Rotors for wind turbines with vertical axis of the Musgrove or "H"-type
    • 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
    • F05B2280/00—Materials; Properties thereof
    • F05B2280/60—Properties or characteristics given to material by treatment or manufacturing
    • F05B2280/6003—Composites; e.g. fibre-reinforced
    • 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
    • F05B2280/00—Materials; Properties thereof
    • F05B2280/60—Properties or characteristics given to material by treatment or manufacturing
    • F05B2280/6013—Fibres
    • 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
    • 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
    • Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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

Abstract

Windkraftanlage (100), umfassend eine Rotorvorrichtung (102), welche mehrere Rotorelemente (108) umfasst, wobei die Rotorelemente (108) im Wesentlichen parallel zueinander und im Wesentlichen parallel zu einer Rotationsachse (114) der Rotorvorrichtung (102) ausgerichtet sind, wobei die Rotorelemente (108) derart zwischen zwei Aufnahmeelementen (112) der Rotorvorrichtung (102) angeordnet sind, dass einander gegenüberliegende Enden (118) eines jeden Rotorelements (108) aufgrund der Rotationsbewegung der Rotorelemente (108) um die Rotationsachse (114) periodisch aufeinander zu und voneinander weg bewegbar sind, so dass ein periodisches Drillknicken der Rotorelemente (108) initiierbar ist.A wind turbine (100) comprising a rotor device (102) comprising a plurality of rotor elements (108), wherein the rotor elements (108) are aligned substantially parallel to each other and substantially parallel to a rotation axis (114) of the rotor device (102) Rotor elements (108) are arranged between two receiving elements (112) of the rotor device (102), that opposite ends (118) of each rotor element (108) due to the rotational movement of the rotor elements (108) about the rotation axis (114) periodically towards each other and away from each other, so that a periodic twisting of the rotor elements (108) can be initiated.

Description

Die vorliegende Erfindung betrifft eine Windkraftanlage.The present invention relates to a wind turbine.

Der Erfindung liegt diesbezüglich die Aufgabe zugrunde, eine Windkraftanlage bereitzustellen, welche leichte und stabile Rotorelemente umfasst und effizient betreibbar ist.The invention is in this respect the task of providing a wind turbine, which includes light and stable rotor elements and is operable efficiently.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die Windkraftanlage eine Rotorvorrichtung umfasst, welche mehrere Rotorelemente umfasst, wobei die Rotorelemente im Wesentlichen parallel zueinander und im Wesentlichen parallel zu einer Rotationsachse der Rotorvorrichtung ausgerichtet sind, wobei die Rotorelemente derart zwischen zwei Aufnahmeelementen der Rotorvorrichtung angeordnet sind, dass einander gegenüberliegende Enden eines jeden Rotorelements aufgrund der Rotationsbewegung der Rotorelemente um die Rotationsachse periodisch aufeinander zu und voneinander wegbewegbar sind, so dass ein periodisches Drillknicken der Rotorelemente initiierbar ist.This object is achieved according to the invention in that the wind power plant comprises a rotor device which comprises a plurality of rotor elements, wherein the rotor elements are aligned substantially parallel to one another and substantially parallel to an axis of rotation of the rotor device, wherein the rotor elements are arranged between two receiving elements of the rotor device, that mutually opposite ends of each rotor element are periodically movable toward and away from each other due to the rotational movement of the rotor elements about the axis of rotation so that periodic twisting of the rotor elements can be initiated.

Dadurch, dass bei den Rotorelementen ein periodisches Drillknicken der Rotorelemente initiierbar ist, können die Rotorelemente vorzugsweise gezielt relativ zur Windrichtung ausgerichtet werden. Die Effizienz der Windkraftanlage kann hierdurch vorzugsweise gesteigert werden.Due to the fact that a periodic twisting of the rotor elements can be initiated in the case of the rotor elements, the rotor elements can preferably be aligned specifically relative to the wind direction. The efficiency of the wind turbine can thereby be increased preferably.

Günstig kann es sein, wenn die Rotorelemente durch das periodische Drillknicken der Rotorelemente an voneinander verschiedenen Positionen längs eines Bewegungswegs der Rotorelemente eine gewünschte Drehausrichtung relativ zu einer Windrichtung, insbesondere einen gewünschten Anstellwinkel, aufweisen.It may be favorable if the rotor elements have a desired rotational orientation relative to a wind direction, in particular a desired angle of attack, by the periodic twisting of the rotor elements at mutually different positions along a path of movement of the rotor elements.

Mindestens ein Aufnahmeelement umfasst vorzugsweise eine Wellenvorrichtung, mittels welcher die Enden der Rotorelemente periodisch aufeinander zu und voneinander weg bewegbar sind.At least one receiving element preferably comprises a shaft device, by means of which the ends of the rotor elements are periodically movable toward and away from one another.

Die Wellenvorrichtung umfasst vorzugsweise eine Führungsvorrichtung zum Führen eines Endes mindestens eines Rotorelements in einer Umfangsrichtung der Rotorvorrichtung und/oder in einer Axialrichtung der Rotorvorrichtung.The shaft device preferably includes a guide device for guiding an end of at least one rotor element in a circumferential direction of the rotor device and / or in an axial direction of the rotor device.

Die Führungsvorrichtung ist insbesondere als eine Führungsschiene ausgebildet.The guide device is designed in particular as a guide rail.

Vorteilhaft kann es sein, wenn die Rotorvorrichtung eine Ausrichtungsvorrichtung umfasst, mittels welcher mindestens ein Aufnahmeelement, insbesondere eine Wellenvorrichtung mindestens eines Aufnahmeelements, relativ zu einer Windrichtung ausrichtbar ist. Auf diese Weise kann gewährleistet werden, dass die Rotorelemente an vorgegebenen Punkten eine gewünschte Drehausrichtung relativ zur Windrichtung aufweisen.It can be advantageous if the rotor device comprises an alignment device, by means of which at least one receiving element, in particular a shaft device of at least one receiving element, can be aligned relative to a wind direction. In this way it can be ensured that the rotor elements at predetermined points have a desired Drehausrichtung relative to the wind direction.

Bei einer Ausgestaltung der Erfindung kann vorgesehen sein, dass die Rotorelemente jeweils mindestens ein Drillknickelement, beispielsweise eine Drillknickstange, umfassen, mittels welchem durch Beaufschlagung des jeweiligen Rotorelements mit einer Druckkraft, welche zumindest näherungsweise in einer parallel zur Rotationsachse der Rotorvorrichtung ausgerichteten Längsrichtung des Rotorelements wirkt, ein Drillknicken des Rotorelements initiierbar ist.In one embodiment of the invention can be provided that the rotor elements each comprise at least one Drillknickelement, for example a Drillknickstange, by means of which by acting on the respective rotor element with a compressive force which acts at least approximately in a direction parallel to the axis of rotation of the rotor device aligned longitudinal direction of the rotor element, a twisting of the rotor element can be initiated.

Die Rotorelemente umfassen insbesondere Hohlprofile oder sind durch Hohlprofile gebildet.The rotor elements in particular comprise hollow profiles or are formed by hollow profiles.

Die erfindungsgemäße Windkraftanlage weist vorzugsweise ferner einzelne oder mehrere der nachfolgend beschriebenen Merkmale und/oder Vorteile auf:
Günstig kann es sein, wenn die Rotorelemente ein stumpfes Profilende, beispielsweise ein Kammheck oder ein Pseudo-Jaray-Heck, umfassen.The wind power plant according to the invention preferably also has one or more of the features and / or advantages described below:
It may be favorable if the rotor elements comprise a blunt profile end, for example a comb tail or a pseudo-Jaray tail.

Vorzugsweise können komplexe zellenförmige und/oder wabenförmige Tragstrukturen bereitgestellt werden.Preferably, complex cellular and / or honeycomb support structures can be provided.

Günstig kann es sein, wenn die Windkraftanlage als Vertikalläufer ausgebildete Rotorelemente umfasst. Hierdurch können sich insbesondere bei turbulenten und sehr unterschiedlichen Windrichtungen Vorteile ergeben.It may be favorable if the wind turbine comprises rotor elements designed as a vertical rotor. This can result in particular turbulent and very different wind directions advantages.

Ein Vertikalläufer kann beispielsweise ein Savonius-Rotor oder ein Darrieus-Rotor sein.A vertical runner may be, for example, a Savonius rotor or a Darrieus rotor.

Alternativ hierzu kann vorgesehen sein, dass die Windkraftanlage als Horizontalläufer ausgebildete Rotorelemente umfasst.Alternatively, it can be provided that the wind turbine comprises trained as a horizontal rotor rotor elements.

Vorzugsweise kann eine Kernstruktur, insbesondere Wickelelemente, beispielsweise in einem Darrieus-Rotor, dazu verwendet werden, dass durch Aufnahmeelemente (insbesondere Deckbleche) eine periodische Kraft eingeleitet wird, die dazu führt, dass das Rotorelement durch ein Drillknicken (Biegedrillknicken) so gedreht wird, dass ein Profilquerschnitt optimal zur Windrichtung ausgerichtet ist.Preferably, a core structure, in particular winding elements, for example in a Darrieus rotor, be used to that by receiving elements (in particular cover plates) a periodic force is introduced, which causes the rotor element by a twisting (bending Kick) is rotated so that a profile cross section is optimally aligned to the wind direction.

Vorzugsweise wird mittels Auf- und Abbewegungen ein Drillknicken der Rotorelemente initiiert.Preferably, a twisting of the rotor elements is initiated by means of up and down movements.

Beispielsweise mittels eines nachgeordneten Flügels zur windrichtungsoptimierten Ausrichtung kann vorzugsweise gewährleistet werden, dass die Rotorelemente an den optimalen Positionen durch ein Drillknicken optimal ausgerichtet werden.For example, by means of a downstream wing for wind direction-optimized alignment can preferably be ensured that the rotor elements are optimally aligned at the optimum positions by a twisting.

Eine, insbesondere tragende, Innenstruktur der Rotorelemente kann vorzugsweise mit einer äußeren Struktur, insbesondere mit zwei äußeren Schalen und/oder einer Umwicklung, kombiniert werden. Die äußere Struktur ermöglicht eine variable Formgebung. Beispielsweise können spitz zulaufende Enden hergestellt werden.A, in particular supporting, internal structure of the rotor elements can preferably be combined with an outer structure, in particular with two outer shells and / or a wrapping. The outer structure allows a variable shaping. For example, tapered ends can be made.

Insbesondere durch eine reine Druckkraft auf die Rotorelemente erfolgt vorzugsweise eine Verdrehung der Rotorelemente.In particular, by a pure compressive force on the rotor elements is preferably carried out a rotation of the rotor elements.

Vorzugsweise kann eine zyklische Verdrillung einen besseren Anstellwinkel zur Windrichtung ermöglichen, wobei vorzugsweise ferner ein Widerstandsanteil im Gegensatz zum Auftriebsanteil verkleinert wird. Der Wirkungsgrad kann hierdurch vorzugsweise erhöht werden.Preferably, a cyclic twisting allow a better angle of attack to the wind direction, wherein preferably further a resistance component is reduced in contrast to the buoyancy portion. The efficiency can thereby preferably be increased.

Um ein Drillknicken zu induzieren, werden vorzugsweise mehrere Anforderungen erfüllt.In order to induce a twist, several requirements are preferably met.

Beispielsweise kann ein punktsymmetrisches und gedrungenes Profil vorgesehen sein.For example, a point-symmetrical and squat profile can be provided.

Das Profil ist vorzugsweise ein offenes Profil, so dass die Torsionssteifigkeit bei Druckbelastung gering ist.The profile is preferably an open profile, so that the torsional stiffness under pressure load is low.

Vorzugsweise weisen die Rotorelemente eine massive, tragende, innere Struktur auf.Preferably, the rotor elements have a solid, supporting, inner structure.

Ein Verhältnis von Profilbreite und Profilhöhe ist vorzugsweise ungefähr 1. Der Drillknickeffekt kann hierdurch vorzugsweise unterstützt werden.A ratio of profile width and profile height is preferably approximately 1. The twist-kink effect can thereby be preferably supported.

Vorteilhaft kann es sein, wenn die Rotorelemente einen in Höhenrichtung sich erstreckenden Steg umfassen. Beispielsweise kann ein solcher Steg durch Faserverstärkungen gebildet sein, welche sich nicht über die komplette Breite der Rotorelemente erstrecken.It may be advantageous if the rotor elements comprise a web extending in the vertical direction. For example, such a web may be formed by fiber reinforcements, which do not extend over the entire width of the rotor elements.

Vorzugsweise ist die Außengeometrie der Rotorelemente so dimensioniert, dass die auftretenden Lasten zwar aufgenommen werden können, den Drillknickeffekt jedoch soweit wie möglich ungestört lassen.Preferably, the outer geometry of the rotor elements is dimensioned so that the loads occurring can indeed be recorded, however, leave the Drillknickeffekt as far as possible undisturbed.

Claims (7)

Windkraftanlage (100), umfassend eine Rotorvorrichtung (102), welche mehrere Rotorelemente (108) umfasst, wobei die Rotorelemente (108) im Wesentlichen parallel zueinander und im Wesentlichen parallel zu einer Rotationsachse (114) der Rotorvorrichtung (102) ausgerichtet sind, wobei die Rotorelemente (108) derart zwischen zwei Aufnahmeelementen (112) der Rotorvorrichtung (102) angeordnet sind, dass einander gegenüberliegende Enden (118) eines jeden Rotorelements (108) aufgrund der Rotationsbewegung der Rotorelemente (108) um die Rotationsachse (114) periodisch aufeinander zu und voneinander weg bewegbar sind, so dass ein periodisches Drillknicken der Rotorelemente (108) initiierbar ist.Wind turbine ( 100 ) comprising a rotor device ( 102 ), which several rotor elements ( 108 ), wherein the rotor elements ( 108 ) substantially parallel to each other and substantially parallel to a rotation axis ( 114 ) of the rotor device ( 102 ), wherein the rotor elements ( 108 ) between two receiving elements ( 112 ) of the rotor device ( 102 ) are arranged that opposite ends ( 118 ) of each rotor element ( 108 ) due to the rotational movement of the rotor elements ( 108 ) around the axis of rotation ( 114 ) are periodically movable towards and away from each other so that a periodic twisting of the rotor elements ( 108 ) is initiatable. Windkraftanlage (100) nach Anspruch 1, dadurch gekennzeichnet, dass die Rotorelemente (108) durch das periodische Drillknicken der Rotorelemente (108) an voneinander verschiedenen Positionen längs eines Bewegungswegs der Rotorelemente (108) eine gewünschte Drehausrichtung relativ zu einer Windrichtung (116), insbesondere einen gewünschten Anstellwinkel, aufweisen.Wind turbine ( 100 ) according to claim 1, characterized in that the rotor elements ( 108 ) by the periodic twisting of the rotor elements ( 108 ) at mutually different positions along a path of movement of the rotor elements ( 108 ) a desired Drehausrichtung relative to a wind direction ( 116 ), in particular a desired angle of attack, have. Windkraftanlage (100) nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass mindestens ein Aufnahmeelement (112) eine Wellenvorrichtung (124) umfasst, mittels welcher die Enden (118) der Rotorelemente (108) periodisch aufeinander zu und voneinander weg bewegbar sind.Wind turbine ( 100 ) according to one of claims 1 or 2, characterized in that at least one receiving element ( 112 ) a wave device ( 124 ), by means of which the ends ( 118 ) of the rotor elements ( 108 ) are periodically movable towards and away from each other. Windkraftanlage (100) nach Anspruch 3, dadurch gekennzeichnet, dass die Wellenvorrichtung (124) eine Führungsvorrichtung (130) zum Führen eines Endes (118) mindestens eines Rotorelements (108) in einer Umfangsrichtung (136) der Rotorvorrichtung (102) und/oder in einer Axialrichtung der Rotorvorrichtung (102) umfasst.Wind turbine ( 100 ) according to claim 3, characterized in that the wave device ( 124 ) a guiding device ( 130 ) for guiding an end ( 118 ) at least one rotor element ( 108 ) in a circumferential direction ( 136 ) of the rotor device ( 102 ) and / or in an axial direction of the rotor device ( 102 ). Windkraftanlage (100) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Rotorvorrichtung (102) eine Ausrichtungsvorrichtung (120) umfasst, mittels welcher mindestens ein Aufnahmeelement (112), insbesondere eine Wellenvorrichtung (124) mindestens eines Aufnahmeelements (112), relativ zu einer Windrichtung (116) ausrichtbar ist.Wind turbine ( 100 ) according to one of claims 1 to 4, characterized in that the rotor device ( 102 ) an alignment device ( 120 ), by means of which at least one receiving element ( 112 ), in particular a wave device ( 124 ) at least one receiving element ( 112 ), relative to a wind direction ( 116 ) is alignable. Windkraftanlage (100) nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Rotorelemente (108) jeweils mindestens ein Drillknickelement, beispielsweise eine Drillknickstange (132), umfassen, mittels welchem durch Beaufschlagung des jeweiligen Rotorelements (108) mit einer Druckkraft, welche zumindest näherungsweise in einer parallel zur Rotationsachse (114) der Rotorvorrichtung (102) ausgerichteten Längsrichtung des Rotorelements (108) wirkt, ein Drillknicken des Rotorelements (108) initiierbar ist.Wind turbine ( 100 ) according to one of claims 1 to 5, characterized in that the rotor elements ( 108 ) in each case at least one Drillknickelement, for example a Drillknickstange ( 132 ), by means of which by acting on the respective rotor element ( 108 ) with a pressure force which at least approximately in a direction parallel to the axis of rotation ( 114 ) of the rotor device ( 102 ) aligned longitudinal direction of the rotor element ( 108 ), a twisting of the rotor element ( 108 ) is initiatable. Windkraftanlage (100) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Rotorelemente (108) Hohlprofile umfassen.Wind turbine ( 100 ) according to one of claims 1 to 6, characterized in that the rotor elements ( 108 ) Comprise hollow sections.
DE102013208463.3A 2013-05-08 2013-05-08 Method and device for producing a molded component and wind turbine Active DE102013208463B4 (en)

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ATGM181/2014U AT14392U1 (en) 2013-05-08 2014-04-28 Wind turbine
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