DE19851735A1 - Wind driven floating power generating unit comprises rotor blades which are strengthened by tensioning cables with streamlined cross sections - Google Patents
Wind driven floating power generating unit comprises rotor blades which are strengthened by tensioning cables with streamlined cross sectionsInfo
- Publication number
- DE19851735A1 DE19851735A1 DE19851735A DE19851735A DE19851735A1 DE 19851735 A1 DE19851735 A1 DE 19851735A1 DE 19851735 A DE19851735 A DE 19851735A DE 19851735 A DE19851735 A DE 19851735A DE 19851735 A1 DE19851735 A1 DE 19851735A1
- Authority
- DE
- Germany
- Prior art keywords
- wind power
- power plant
- plant according
- rotor
- rotor blades
- 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.)
- Withdrawn
Links
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 229910001018 Cast iron Inorganic materials 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims 10
- 239000001257 hydrogen Substances 0.000 claims 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 9
- 239000007788 liquid Substances 0.000 claims 4
- 230000005611 electricity Effects 0.000 claims 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 3
- 239000002184 metal Substances 0.000 claims 2
- 229910052751 metal Inorganic materials 0.000 claims 2
- 239000004033 plastic Substances 0.000 claims 2
- 229920003023 plastic Polymers 0.000 claims 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims 1
- 229910000639 Spring steel Inorganic materials 0.000 claims 1
- 238000004026 adhesive bonding Methods 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 239000004918 carbon fiber reinforced polymer Substances 0.000 claims 1
- 239000011151 fibre-reinforced plastic Substances 0.000 claims 1
- 150000002431 hydrogen Chemical class 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 238000003466 welding Methods 0.000 claims 1
- 238000005452 bending Methods 0.000 description 6
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- 238000009750 centrifugal casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Classifications
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
- B63B1/10—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls
- B63B1/12—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly
- B63B1/125—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly comprising more than two hulls
-
- 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
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F03D13/25—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B2035/4433—Floating structures carrying electric power plants
- B63B2035/446—Floating structures carrying electric power plants for converting wind energy into electric energy
-
- 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
-
- 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
- F05B2240/90—Mounting on supporting structures or systems
- F05B2240/93—Mounting on supporting structures or systems on a structure floating on a liquid surface
-
- 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
- Y02E10/727—Offshore wind turbines
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Wind Motors (AREA)
Abstract
Description
Die Erfindung betrifft ein schwimmfähiges Windkraftwerk mit horizontaler Wellenachse dessen Rotorblätter durch strömungsgünstig geformte Zugstränge verstärkt sind und deren Rotorwelle vor und hinter den Rotorblättern (in Windrichtung gesehen) gelagert ist.The invention relates to a buoyant wind power plant with a horizontal shaft axis whose rotor blades are reinforced by aerodynamically shaped tensile cords and their rotor shaft in front of and behind the Rotor blades (seen in the wind direction) is stored.
Die bekannten Windkraftwerke mit horizontalen Wellenachsen haben die Nachteile daß die Rotorwellen nur auf einer Seite von den Rotorblättern aus gesehen, gelagert sind und daß die Rotorblätter durch keine strömungsgünstig geformten Zugstränge verstärkt sind. Daher müssen die Rotorblätter und die Rotorwellen dieser Windkraftwerke großen Biege- und Verdrehbeanspruchungen standhalten. Diese großen Biege- und Verdrehbeanspruchungen resultieren im wesentlichen aus den Wind-, Schwingungs- und Gewichtskräften. Daher sind die bekannten Windkraftwerke mit horizontalen Wellenachsen in der Größe des Rotordurchmesser stark eingeschränkt, was insbesondere bei schwimmfähigen Windkraftwerken, die die günstigen hohen Windströmungen auf den Meeren nutzen könnten, zu wenig wirtschaftlichen Baugrößen führt. Die wegen der hohen Biege- und Verdrehmomente notwendigen Hohlprofile für die Rotorblätter, der bekannten Windkraftwerke mit horizontalen Wellenachsen, haben höhere Strömungswiderstandsbeiwerte als dünnere Vollprofile, was zu niedrigeren Schellaufzahlen (Verhältnissen von Rotorumfangsgeschwindigkeiten zu den Windgeschwindigkeiten) führt und damit zu entsprechend größeren Rotorblattbreiten und damit zu wesentlich höheren Rotorgewichten. Durch die niedrigen Schnellaufzahlen ergeben sich auch höhere Aufwendungen für Getriebe, die die Generatoren treiben, weil größere Übersetzungen erforderlich sind.The known wind power plants with horizontal shaft axes have the disadvantages that the rotor shafts only seen on one side of the rotor blades, stored and that the rotor blades by none aerodynamically shaped tension cords are reinforced. Therefore, the rotor blades and the rotor shafts these wind power plants withstand large bending and twisting stresses. These big bending and Twisting stresses essentially result from the wind, vibration and weight forces. Therefore, the known wind power plants with horizontal shaft axes are the size of the rotor diameter severely restricted, which is particularly the case with floating wind power plants, which are the favorable high Could use wind currents on the seas, leads to small economic sizes. The because of the high bending and torsional moments necessary hollow profiles for the rotor blades, the well-known Wind power plants with horizontal shaft axes have higher drag coefficients than thinner ones Full profiles, resulting in lower speeds (ratios of rotor peripheral speeds to the Wind speeds) and thus lead to correspondingly larger rotor blade widths and thus to much higher rotor weights. Due to the low number of fast orders, there are also higher expenses for Gearboxes that drive the generators because larger gear ratios are required.
Der Erfindung liegt die Aufgabe zu Grunde, die Nachteile zu vermeiden, das heißt wesentlich größere Rotordurchmesser bei geringem Materialbedarf und geringeren technischen Aufwand zu ermöglichen und höhere Schnellaufzahlen der Rotoren bei guten Wirkungsgraden zu erreichen.The invention is based on the object of avoiding the disadvantages, that is to say substantially larger ones To enable rotor diameter with low material requirements and less technical effort and to achieve higher rotor speeds with good efficiency.
Nach der Erfindung werden die Rotorblätter dadurch sehr biege-, schwingungs- und verdrehfest, daß die Rotorblätter durch strömungsgünstig geformte Zugstränge mehrfach gespannt sind, so daß die Wind- und Gewichtskräfte, die an den Rotorblättern wirken, im wesentlichen von den strömungsgünstig geformten Zugsträngen aufgenommen werden und Schwingungskräfte weitgehend vermieden werden. Die verbleibenden Biege- und Verdrehmomente, die zwischen den Befestigungspunkten der strömungsgünstig geformten Zugstränge an den Rotorblättern auftreten, sind, durch erhöhen der Zahl der strömungsgünstig geformten Zugstränge, so weit reduzierbar, daß sie von Rotorblättern mit dünnwandigem Vollquerschnitten dauerhaft und sicher ertragen werden können . Dünnwandige Vollprofile sind gegenüber Hohlprofilen wesentlich strömungsgünstiger. Daher können die Rotoren für schwimmfähige Windkraftwerke nach dieser Erfindung für höhere Schnellaufzahlen (das heißt für ein größeres Verhältnis von der Umfangsgeschwindigkeit der Rotoren zu der Windgeschwindigkeit) ausgelegt werden. Dies wiederum führt zu wesentlich geringeren Rotorblattbreiten und somit zu erheblichen Gewichts- und Materialeinsparungen bei den Rotoren. Darüber hinaus wird durch die höhere Schelläufigkeit das Übersetzungsverhältnis zwischen Rotor und Generator kleiner. Daher werden die an den Getrieben (wie beispielsweise Zahnrad-, Ketten, oder Reibradgetrieben) angreifende Kräfte und Momente geringer und somit die Baugrößen und der Gesamtaufwand für diese Getriebe erheblich reduziert. Über die Verstärkung der Rotorblätter durch die strömungsgünstig geformten Zugstränge hinaus wird der Rotor dadurch erheblich biege- und schwingungssteifer und der Materialaufwand für die Rotorwelle wesentlich reduziert, daß die Rotorwelle vor und nach den Rotorblättern (in Windrichtung gesehen) gelagert ist. Insgesamt ist ein Rotor nach dieser Erfindung, der durch die strömungsgünstig geformten Zugstränge verstärkt ist, so schwingungssteif, daß die noch auftretenden Schwingungen bei der Dimensionierung der Rotorblätter und der Rotorwelle kaum berücksichtigt werden müssen. Die sich somit ergebende hohe Gesamtstabilität der Rotoren nach dieser Erfindung führt insgesamt zu erheblichen Gewichts und Materialeinsparungen bei den Rotoren und den Getrieben und damit auch zur starken Reduzierung des Bauaufwandes.According to the invention, the rotor blades are very resistant to bending, vibration and torsion in that the Rotor blades are tensioned several times by aerodynamically shaped tension cables, so that the wind and Weight forces that act on the rotor blades, essentially from the aerodynamically shaped Tension cords are absorbed and vibrational forces are largely avoided. The remaining Bending and twisting moments between the attachment points of the aerodynamically shaped Tension cords on the rotor blades are caused by increasing the number of aerodynamically shaped Drawstrings, so far reducible that they are permanent from rotor blades with thin-walled full cross sections and can be endured safely. Thin-walled full profiles are essential compared to hollow profiles more aerodynamic. Therefore, the rotors for floating wind power plants according to this invention can be used for Higher speed counts (that is, for a larger ratio of the peripheral speed of the rotors to the wind speed). This in turn leads to much less Rotor blade widths and thus considerable weight and material savings with the rotors. In addition, the gear ratio between the rotor and Generator smaller. Therefore, those on the gears (such as gear, chains, or Friction wheel gears) attacking forces and moments less and thus the sizes and the Total effort for this gearbox is significantly reduced. About the reinforcement of the rotor blades by the aerodynamically shaped tensile strands, the rotor is thereby considerably bending and Vibration resistant and the cost of materials for the rotor shaft significantly reduced that the rotor shaft before and is mounted after the rotor blades (seen in the wind direction). Overall, a rotor is after this Invention, which is reinforced by the aerodynamically shaped tension cords, so vibration-resistant that the vibrations still occurring when dimensioning the rotor blades and the rotor shaft hardly must be taken into account. The resulting high overall stability of the rotors after this Overall, the invention leads to considerable weight and material savings in the rotors and Geared and thus also to greatly reduce construction costs.
Die Zeichnungen zeigen inThe drawings show in
Fig. 1 eine Seitenansicht geschnitten eines schwimmfähigen Windkraftwerkes nach dieser Erfindung. Fig. 1 is a side view in section of a buoyant wind power plant according to this invention.
Fig. 2 einen horizontalen Schnitt durch ein Windkraftwerk nach Fig. 1 FIG. 2 shows a horizontal section through a wind power plant according to FIG. 1
Fig. 3 einen Querschnitt durch ein Rotorblatt 5 nach dieser Erfindung. Fig. 3 shows a cross section through a rotor blade 5 according to this invention.
Fig. 4 jeweils ein Beispiel eines strömungsgünstig geformten Profilschnittes der strömungsgünstig geformten Zugstränge 6 und 7 und der Reibradspeiche 8 Fig. 4 are each an example of an aerodynamically shaped profile section of the aerodynamically shaped tension members 6 and 7 and the Reibradspeiche 8
Fig. 5 einen Teilschnitt durch ein keilnutförmiges Reibradgetriebe Fig. 5 is a partial section through a wedge-shaped friction gear
Fig. 6 einen Schnitt hinter den Rotorblättern 5 der Rotorwelle. Fig. 6 shows a section behind the rotor blades 5 of the rotor shaft.
Ein Ausführungsbeispiel eines schwimmfähigen Windkraftwerkes nach dieser Erfindung hat beispielsweise einen Rotordurchmesser von 200 m und ist für eine Schnellaufzahl von 12 ausgelegt. Die Rotorwelle des Rotors 1 ist beispielsweise aus Aluminiumlegierungs-Gußteilen und Aluminiumlegierungs-Schleudergußteilen zusammengeschweißt. Die feststehenden Rotorblätter 5 sind an angeschweißten Auslegern der Rotorwelle mittels Schrauben angeflanscht. Die Rotorblätter 5 sind etwa bis 6 mm dicke Vollprofile aus einer festen, schweißbaren und witterungsbeständigen Aluminiumiegierung. Die Teile der Rotorblätter 5 sind Kokillengußteile die zusammengeschweißt die Rotorblätter 5 ergeben. In den Bereichen, wo die strömungsgünstig geformten Zugstränge 6 und 7 an den Rotorblättern 5 befestigt sind, sind die Rotorblätter 5, entsprechend den Festigkeitserfordernissen strömungsgünstig geformt, verstärkt. Die strömungsgünstig geformten Zugstränge 6 und 7 bestehen zum Beispiel aus hochfestem Profilstahl, der an den Enden durch Warmformgebung verstärkt ist und sind an den Enden, wo sie an der Rotorwelle befestigt sind, mit Spannelementen versehen, mit denen sie auf die notwendige Vorspannung gebracht werden. Auf der Rotorwelle des Rotors 1 ist ein ringförmiges, keilförmig geschliffenes, großes Reibrad 14 aus oberflächengehärtetem Stahl, mit Reibradspeichen 16 zum Beispiel aus hochfestem Profilstahl bestehend, vorgespannt befestigt. Der Rotor 1 ist auf einem schwimmfähigen Tragwerk 2 montiert, das mit drei Stück Schwimmkörper 11 ausgestattet ist und dort (in Windrichtung gesehen) vor und hinter den Rotorblättern 5 gelagert. Die Lagerung 3 nimmt neben den Radialkräften die großen Achsialkräfte auf, die durch die Windkräfte auf den Rotor 1 wirken, während das Lager 4, neben den Radialkräften, nur geringe Achsialkräfte aufnehmen muß. Das schwimmfähige Tragwerk 2 besteht aus Stahlgußteilen und Schleudergußteilen aus Stahl die miteinander verschweißt sind. Auf dem schwimmfähigen Tragwerk 2 ist ein Drehstromgenerator für Drehstromerzeugung montiert, dessen Wellenende mit einem kleinen Reibrad 15 bestückt ist, das mit seiner umlaufenden, keilförmigen Nut, mit einer ausreichenden Kraft, gegen das große Reibrad 14 gepreßt wird. Daneben ist ein Transformator 9 angebracht, der den vom Generator 8 erzeugten, niedrig gespannten Strom in hochgespannten, wirtschaftlich übertragbaren Strom wandelt. Das schwimmfähige Windkraftwerk ist am Meeresgrund mittels eines schweren Ankers 12 aus Gußeisen und einem aus gerecktem Polyethylen (PE) bestehenden Seiles 13 verankert. Die Seilbefestigung am schwimmfähigen Tragwerk 2 ist drehbar kugelgelagert und mit einem Durchbruch für drei durchgeführte PE-ummantelte Kabelstränge 10, für die Drehstromübertragung zum Land hin, versehen.An embodiment of a buoyant wind power plant according to this invention has, for example, a rotor diameter of 200 m and is designed for a high-speed installation of 12. The rotor shaft of the rotor 1 is welded together, for example, from aluminum alloy castings and aluminum alloy centrifugal castings. The fixed rotor blades 5 are flanged to welded arms of the rotor shaft by means of screws. The rotor blades 5 are approximately 6 mm thick solid profiles made of a solid, weldable and weatherproof aluminum alloy. The parts of the rotor blades 5 are mold castings which, when welded together, result in the rotor blades 5 . In the areas where the aerodynamically shaped pull strands 6 and 7 are fastened to the rotor blades 5 , the rotor blades 5 are reinforced in accordance with the strength requirements to be aerodynamically shaped. The aerodynamically shaped tensile strands 6 and 7 consist, for example, of high-strength section steel, which is reinforced at the ends by hot forming and are provided at the ends where they are attached to the rotor shaft with tensioning elements with which they are brought to the necessary pretension. On the rotor shaft of the rotor 1 , an annular, wedge-shaped ground, large friction wheel 14 made of surface-hardened steel, with friction wheel spokes 16 consisting, for example, of high-strength profile steel, is fastened in a prestressed manner. The rotor 1 is mounted on a floating structure 2 , which is equipped with three pieces of floating body 11 and is stored there (seen in the wind direction) in front of and behind the rotor blades 5 . In addition to the radial forces, the bearing 3 absorbs the large axial forces which act on the rotor 1 as a result of the wind forces, while the bearing 4 , in addition to the radial forces, only has to absorb small axial forces. The buoyant structure 2 consists of cast steel parts and centrifugal cast steel parts which are welded together. On the floating structure 2 , a three-phase generator for three-phase generation is mounted, the shaft end of which is equipped with a small friction wheel 15 , which is pressed with its circumferential, wedge-shaped groove with sufficient force against the large friction wheel 14 . In addition, a transformer 9 is attached, which converts the low-voltage current generated by the generator 8 into high-voltage, economically transferable current. The buoyant wind power plant is anchored to the sea floor by means of a heavy cast iron anchor 12 and a rope 13 made of stretched polyethylene (PE). The cable attachment on the floating structure 2 is rotatably supported by ball bearings and provided with an opening for three PE-coated cable strands 10 , for the three-phase transmission to the land.
Es gibt noch viele Ausführungsarten von schwimmfähigen Windkraftwerken nach dieser Erfindung. There are still many designs of floating wind power plants according to this invention.
11
Rotor
rotor
22nd
schwimmfähiges Tragwerk
buoyant structure
33rd
Lagerung
storage
44th
Lager
camp
55
Rotorblatt
Rotor blade
66
strömungsgünstig geformter Zugstrang
aerodynamically shaped tension cord
77
strömungsgünstig geformter Zugstrang
aerodynamically shaped tension cord
88th
Generator
generator
99
Transformator
transformer
1010th
Stromleitung
power line
1111
Schwimmkörper
Floating body
1212th
Anker
anchor
1313
Seil
rope
1414
großes Reibrad
large friction wheel
1515
kleines Reibrad
small friction wheel
1616
Reibradspeiche
Friction wheel spoke
1717th
aerodynamische Bremse
aerodynamic brake
Claims (22)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19851735A DE19851735A1 (en) | 1998-11-10 | 1998-11-10 | Wind driven floating power generating unit comprises rotor blades which are strengthened by tensioning cables with streamlined cross sections |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19851735A DE19851735A1 (en) | 1998-11-10 | 1998-11-10 | Wind driven floating power generating unit comprises rotor blades which are strengthened by tensioning cables with streamlined cross sections |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19851735A1 true DE19851735A1 (en) | 2000-05-11 |
Family
ID=7887261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19851735A Withdrawn DE19851735A1 (en) | 1998-11-10 | 1998-11-10 | Wind driven floating power generating unit comprises rotor blades which are strengthened by tensioning cables with streamlined cross sections |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19851735A1 (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003046376A1 (en) * | 2001-11-21 | 2003-06-05 | John Freer Green | Multivane windwheel with concentric wheels |
GB2466477A (en) * | 2008-11-20 | 2010-06-30 | Univ Nottingham | Floating support for offshore wind turbine |
WO2011006436A1 (en) * | 2009-07-17 | 2011-01-20 | Qi Yongwei | Reinforced type wind-driven generator |
DE102009040648A1 (en) | 2009-09-09 | 2011-03-10 | Wilhelm Ebrecht | Floatable off shore-wind power plant, has constructional unit arranged at floatable body and comprising poles, at which rotor is supported in rotatable manner, where poles comprise drop-shaped cross sectional contour |
US7927065B2 (en) | 2007-03-05 | 2011-04-19 | Manfred Moehring | Wind turbine with additional blade-end support |
DE102009057794A1 (en) | 2009-12-11 | 2011-06-16 | Wilhelm Ebrecht | Floatable offshore-wind turbine comprises a floating body, masts and rotors arranged on the floating body as construction, two handle bars that are mounted in different height on the construction and are coupled with an anchoring device |
US20160061192A1 (en) * | 2013-04-18 | 2016-03-03 | Marc Guyot | Floating wind turbine structure |
DE102015121794B3 (en) * | 2015-12-15 | 2017-01-19 | Peter Kelemen | Anchor device and floating device |
EP3211225A1 (en) * | 2009-04-20 | 2017-08-30 | Gerald L. Barber | Floating wind turbine with turbine anchor |
CN108361147A (en) * | 2018-02-05 | 2018-08-03 | 上海青履新能源科技有限责任公司 | A kind of stormy waves cogeneration trunnion axis cumulative wind turbine and its operation principle |
DE102019110506A1 (en) * | 2019-04-23 | 2020-10-29 | Innogy Se | Foundation of an offshore structure with a transmission cable and a protective element |
US11891979B2 (en) | 2018-09-20 | 2024-02-06 | Eolink S.A.S. | Floating wind turbine with controllable yaw position |
-
1998
- 1998-11-10 DE DE19851735A patent/DE19851735A1/en not_active Withdrawn
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003046376A1 (en) * | 2001-11-21 | 2003-06-05 | John Freer Green | Multivane windwheel with concentric wheels |
US7927065B2 (en) | 2007-03-05 | 2011-04-19 | Manfred Moehring | Wind turbine with additional blade-end support |
GB2466477A (en) * | 2008-11-20 | 2010-06-30 | Univ Nottingham | Floating support for offshore wind turbine |
GB2466477B (en) * | 2008-11-20 | 2013-01-23 | Seamus Garvey | Frameworks for supporting large floating offshore wind turbines |
EP3211225A1 (en) * | 2009-04-20 | 2017-08-30 | Gerald L. Barber | Floating wind turbine with turbine anchor |
WO2011006436A1 (en) * | 2009-07-17 | 2011-01-20 | Qi Yongwei | Reinforced type wind-driven generator |
DE102009040648A1 (en) | 2009-09-09 | 2011-03-10 | Wilhelm Ebrecht | Floatable off shore-wind power plant, has constructional unit arranged at floatable body and comprising poles, at which rotor is supported in rotatable manner, where poles comprise drop-shaped cross sectional contour |
DE102009040648B4 (en) * | 2009-09-09 | 2013-02-28 | Wilhelm Ebrecht | Floating offshore wind turbine |
DE102009057794A1 (en) | 2009-12-11 | 2011-06-16 | Wilhelm Ebrecht | Floatable offshore-wind turbine comprises a floating body, masts and rotors arranged on the floating body as construction, two handle bars that are mounted in different height on the construction and are coupled with an anchoring device |
US20160061192A1 (en) * | 2013-04-18 | 2016-03-03 | Marc Guyot | Floating wind turbine structure |
JP2016515680A (en) * | 2013-04-18 | 2016-05-30 | マルク ギュイヨ | Floating wind turbine structure |
US9976540B2 (en) * | 2013-04-18 | 2018-05-22 | Marc Guyot | Floating wind turbine structure |
DE102015121794B3 (en) * | 2015-12-15 | 2017-01-19 | Peter Kelemen | Anchor device and floating device |
CN108361147A (en) * | 2018-02-05 | 2018-08-03 | 上海青履新能源科技有限责任公司 | A kind of stormy waves cogeneration trunnion axis cumulative wind turbine and its operation principle |
US11891979B2 (en) | 2018-09-20 | 2024-02-06 | Eolink S.A.S. | Floating wind turbine with controllable yaw position |
DE102019110506A1 (en) * | 2019-04-23 | 2020-10-29 | Innogy Se | Foundation of an offshore structure with a transmission cable and a protective element |
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