DE102015011260A1 - Wind turbine with more than one wing per wing flange of the rotor - Google Patents
Wind turbine with more than one wing per wing flange of the rotor Download PDFInfo
- Publication number
- DE102015011260A1 DE102015011260A1 DE102015011260.0A DE102015011260A DE102015011260A1 DE 102015011260 A1 DE102015011260 A1 DE 102015011260A1 DE 102015011260 A DE102015011260 A DE 102015011260A DE 102015011260 A1 DE102015011260 A1 DE 102015011260A1
- Authority
- DE
- Germany
- Prior art keywords
- rotor
- wings
- wing
- wind
- performance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
- 230000003068 static effect Effects 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
Images
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
- F03D1/0608—Rotors characterised by their aerodynamic shape
- F03D1/0633—Rotors characterised by their aerodynamic shape 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
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/02—Wind motors with rotation axis substantially parallel to the air flow entering the rotor having a plurality of rotors
- F03D1/025—Wind motors with rotation axis substantially parallel to the air flow entering the rotor having a plurality of rotors coaxially arranged
-
- 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
- F03D1/0608—Rotors characterised by their aerodynamic shape
- F03D1/0625—Rotors characterised by their aerodynamic shape of the whole rotor, i.e. form features of the rotor unit
-
- 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
Abstract
Betr. der Fundstelle:, das schmale lange Flügel in der Leistung effizienter sind als kurze, breite Flügel. Zu Einem geht dies aus den Erfahrungen aus der Entwicklung im Segelflugzeugbau hervor, und zum Zeiten würden die kurzen, breiten Flügel die gleiche Leistung erbringen, so würde man sie an den Windkraftanlagen einsetzen, da kurze, breite Flügel weniger dynamische Nachteile haben. Aus Sicht der Stabilität haben die dicken, starken Rotorflügel vom Stand der Technik die notwendige Profilform. Aus Sicht der effizienten Drehleistung des Rotors müssten die Flügel eine schlankere, aerodynamischere Profilform besitzen (4 und 5) im Vergleich. Die Flügel vom Rotor (4) sowie vom Rotor 5 haben in der Summe das gleiche Volumen, doch der Rotor von (4) mit den schlankeren Flügeln zeigt in der Darstellung der Profilquerschnitte seinen Leistungsvorteil. Die Verdopplung der Drehgeschwindigkeit des Rotors verdreifacht die Energieleistung. Deswegen werden schnelllaufende Rotoren verwendet. Mit dem Profilanstellwinkel von (4 (14) erreicht der Rotor die höchste Drehleistung. Das das Profil (Schnitt PQR) fast quer zur Windrichtung steht, liegt an der maßgebenden Windrichtung des scheinbaren Windes. Die scheinbare Windrichtung am Flügelprofil setzt sich zusammen,: aus der Windrichtung und dessen Windgeschwindigkeit einerseits und aus der Drehrichtung des Rotors sowie dessen Drehgeschwindigkeit andererseits. Der Grund dafür, dass die einzelnen Flügelprofilquerschnitte nicht die gleiche Richtung zum Wind haben, liegt an den verschiedenen Umfangsgeschwindigkeiten des Rotors, In der Richtung hin zum Rotorzentrum reduzieren sich die Umfangsgeschwindigkeiten bis auf Null.Subject. The reference: narrow narrow wings are more efficient in performance than short, wide wings. On the one hand, this is the result of experience in the development of glider construction, and at times, the short, wide wings would produce the same performance, so they would be used on wind turbines because short, wide wings have less dynamic drawbacks. From the perspective of stability, the thick, strong rotor blades of the prior art have the necessary profile shape. From the point of view of the efficient rotational performance of the rotor, the wings would have to have a slimmer, more aerodynamic profile shape (4 and 5) in comparison. The wings of the rotor (4) and the rotor 5 have in sum the same volume, but the rotor of (4) with the slimmer wings shows in the representation of the profile cross sections its performance advantage. Doubling the rotational speed of the rotor triples the energy output. That is why high-speed rotors are used. With the tread angle of (4 (14) the rotor achieves the highest turning power, and the profile (PQR cut) is almost transverse to the wind direction, because of the prevailing wind direction of the apparent wind The reason for the fact that the individual airfoil sections do not have the same direction to the wind is due to the different peripheral speeds of the rotor, in the direction towards the rotor center the circumferential speeds are reduced to zero.
Description
Windkraftanlagen mit horizontaler Achse, mit Drehzahlregulierung und Windrichtungsnachführung zur Herstellung von El. Energie.Wind turbines with horizontal axis, with speed regulation and wind direction tracking for the production of El. Energy.
Das Ziel ist es, aus der Kraft des Windes, kostengünstig einen hohen El. Energieertrag zu erzeugen.The goal is, from the power of the wind, cost a high El. Generate energy yield.
Aus Sicht der Stabilität haben die dicken, starken Rotorflügel vom Stand der Technik die notwendige Profilform. Aus Sicht der effizienten Drehleistung des Rotors müssten die Flügel eine schlankere, aerodynamischere Profilform besitzen (
Bei Sturm werden die Flügel des Rotors durch eine Pitch-Vorrichtung am Flügeladapter (
Alternativ zur Kettenversion wäre das Rollenlager am Flügelflansch, das allerdings die hohen Zugkräfte auffangen müsste.As an alternative to the chain version, the roller bearing would be on the wing flange, which, however, would have to absorb the high tensile forces.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
Fig. 1: Die Windkraftanlage in der Perspektive
- 1
Flügel 1- 2
Flügel 2- 3
Flügel 3- 4
- Turm
- 5
- Traverse
- 6
- Gondel
- 7
- Blattadapter
- 8
- Flügelflansch
- 9
- Rotornabe
- 10
- Verbindungsbolzen
- 11
- Die Rotordrehrichtung
- 12
- Radialdrehpunkt I
- 13
- Radialdrehpunkt II
- 14
- Die Flügelquerschnitte im
Maßstab 1 × 3 vergrößert - 15
- Windrichtung
- 16
- Die Flügelquerschnitte im
Maßstab 1 × 3 vom Stand der Technik
- 1
- Wing 1
- 2
- Wing 2
- 3
- Wing 3
- 4
- tower
- 5
- traverse
- 6
- gondola
- 7
- blade adapter
- 8th
- Flügelflansch
- 9
- rotor hub
- 10
- connecting bolts
- 11
- The rotor rotation direction
- 12
- Radial pivot point I
- 13
- Radial pivot point II
- 14
- The wing cross sections in the
scale 1 × 3 enlarged - 15
- wind direction
- 16
- The wing sections in the
scale 1 × 3 of the prior art
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015011260.0A DE102015011260A1 (en) | 2015-08-26 | 2015-08-26 | Wind turbine with more than one wing per wing flange of the rotor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015011260.0A DE102015011260A1 (en) | 2015-08-26 | 2015-08-26 | Wind turbine with more than one wing per wing flange of the rotor |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102015011260A1 true DE102015011260A1 (en) | 2017-03-02 |
Family
ID=58011241
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102015011260.0A Ceased DE102015011260A1 (en) | 2015-08-26 | 2015-08-26 | Wind turbine with more than one wing per wing flange of the rotor |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102015011260A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10208733B2 (en) * | 2016-07-19 | 2019-02-19 | Michael L Barrows | Tandem tip-joined rotor blade and hub coupling for passive pitch angle control |
FR3079003A1 (en) * | 2018-03-13 | 2019-09-20 | Francois Geli | TRIPARTITE SKELETAL WIND BUTTON |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4171929A (en) * | 1977-06-27 | 1979-10-23 | Allison William D | Blade for windmill |
DE3331166A1 (en) * | 1983-08-30 | 1985-03-14 | Erich Herter | Turbine |
DE102006027885A1 (en) * | 2006-06-16 | 2007-12-20 | Meyer, Ullrich, Dr. Ing. | Wind generator, has twistable rotor blades guiding hub to concentric ring pair, support ring and control ring , where support ring and control ring are manufactured from double curved material |
WO2010053450A2 (en) * | 2008-11-05 | 2010-05-14 | Vestas Technology R&D Singapore Pte Ltd | Tandem tip-joined blades for wind turbines |
WO2010145916A1 (en) * | 2009-05-26 | 2010-12-23 | Etablissements Roty Et Fils | Wind turbine |
-
2015
- 2015-08-26 DE DE102015011260.0A patent/DE102015011260A1/en not_active Ceased
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4171929A (en) * | 1977-06-27 | 1979-10-23 | Allison William D | Blade for windmill |
DE3331166A1 (en) * | 1983-08-30 | 1985-03-14 | Erich Herter | Turbine |
DE102006027885A1 (en) * | 2006-06-16 | 2007-12-20 | Meyer, Ullrich, Dr. Ing. | Wind generator, has twistable rotor blades guiding hub to concentric ring pair, support ring and control ring , where support ring and control ring are manufactured from double curved material |
WO2010053450A2 (en) * | 2008-11-05 | 2010-05-14 | Vestas Technology R&D Singapore Pte Ltd | Tandem tip-joined blades for wind turbines |
WO2010145916A1 (en) * | 2009-05-26 | 2010-12-23 | Etablissements Roty Et Fils | Wind turbine |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10208733B2 (en) * | 2016-07-19 | 2019-02-19 | Michael L Barrows | Tandem tip-joined rotor blade and hub coupling for passive pitch angle control |
FR3079003A1 (en) * | 2018-03-13 | 2019-09-20 | Francois Geli | TRIPARTITE SKELETAL WIND BUTTON |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R012 | Request for examination validly filed | ||
R086 | Non-binding declaration of licensing interest | ||
R163 | Identified publications notified | ||
R016 | Response to examination communication | ||
R082 | Change of representative | ||
R002 | Refusal decision in examination/registration proceedings | ||
R003 | Refusal decision now final |