WO2012016262A2 - Turbine éolienne - Google Patents

Turbine éolienne Download PDF

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Publication number
WO2012016262A2
WO2012016262A2 PCT/AT2011/000328 AT2011000328W WO2012016262A2 WO 2012016262 A2 WO2012016262 A2 WO 2012016262A2 AT 2011000328 W AT2011000328 W AT 2011000328W WO 2012016262 A2 WO2012016262 A2 WO 2012016262A2
Authority
WO
WIPO (PCT)
Prior art keywords
rotor blades
rotor
group
hollow shaft
wings
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
Application number
PCT/AT2011/000328
Other languages
German (de)
English (en)
Other versions
WO2012016262A3 (fr
Inventor
Alois Penz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2012016262A2 publication Critical patent/WO2012016262A2/fr
Publication of WO2012016262A3 publication Critical patent/WO2012016262A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D1/00—Non-positive-displacement machines or engines, e.g. steam turbines
    • F01D1/30—Non-positive-displacement machines or engines, e.g. steam turbines characterised by having a single rotor operable in either direction of rotation, e.g. by reversing of 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
    • 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
    • F03D7/024—Adjusting aerodynamic properties of the blades of individual blades
    • 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
    • F05B2210/00—Working fluid
    • F05B2210/40—Flow geometry or direction
    • F05B2210/404—Flow geometry or direction bidirectional, i.e. in opposite, alternating directions
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2210/00—Working fluids
    • F05D2210/40—Flow geometry or direction
    • F05D2210/44—Flow geometry or direction bidirectional, i.e. in opposite, alternating directions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/70—Adjusting of angle of incidence or attack of rotating blades
    • F05D2260/79—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 wind turbine with an axial flow turbine rotor whose arranged in a circumferential row of rotor blades are mounted 180 ° pivotable about its longitudinal axis in a rotor hub.
  • Rotor blades of axial wind turbines have a wing profile comparable to a wing profile, wherein the wing width plays an important role in the exploitation of wind energy. For this reason, rotor blades which become narrower towards the rotor hub degrade the efficiency.
  • the possible number of rotor blades which can be swiveled through 180 ° and which have a profile width which is substantially identical to the rotor hub is limited on account of the hub-side profile width.
  • since the possible use of wind energy increases with the number of rotor blades this means that with a larger number of rotor blades. In their efficiency worse rotor blades with a tapering profile against the hub profile must be accepted.
  • the invention is therefore an object of the invention to provide a way, the number of pivotable by 180 ° rotor blades one in opposite directions To increase inflatable wind turbine without having to use worse rotor blades in their efficiency.
  • the invention solves this problem by virtue of the fact that the rotor blades consecutive in the circumferential direction of the rotor hub belong alternately to one of two blade groups and the rotor blades of one blade group can be pivoted independently of the rotor blades of the other group or together with these are.
  • the rotor blades of both groups can be adjusted together again to adjust the respective required angle of attack for the rotor blades in a single operation in a single operation.
  • the rotor hub has a coaxial hollow shaft for the rotary drive of the rotor blades of a wing group and a hollow shaft coaxially penetrating shaft for the rotary drive of the rotor blades of the other wing group that the rotor blades via bevel gear alternately with the hollow shaft and the hollow shaft penetrating shaft driving are connected and that the hollow shaft and the shaft passing through each carry a common bevel gear for the associated angle gear.
  • the rotor blades of one group of wings are adjusted via the hollow shaft and the rotor blades of the other group of wings through the shaft passing through the hollow shaft.
  • rotor blades with separate servomotors, which are controlled in groups together for the rotor blades of the two wing groups via a control device.
  • the rotor blades of one wing group can be adjusted independently of the rotor blades of the other wing group or together with them via the control device provided for this purpose, but then only in a limited angular range.
  • FIG. 1 shows a wind turbine according to the invention in sections in the region of the rotor hub in a schematic end view
  • Fig. 2 is a section along the line II-II of Fig. 1 and the
  • FIG. 3 and 4 Figs. 1 and 2 corresponding representations of an embodiment of a wind turbine according to the invention.
  • the turbine rotor 1 of a wind turbine over its circumference evenly distributed radial rotor blades 2 and 3, which are provided with a dot-dash line indicated in Fig. 2 airfoil 4 in the manner of an airfoil and therefore one in the direction of flow extending broadside and have a transversely oriented narrow side.
  • a turbine rotor 1 from opposite sides to be able to flow, the rotor blades 2, 3 to rotate 180 ° about its longitudinal axis. From Fig.
  • the rotor blades 2, 3 may be arranged in its working position with sufficient distance in the circumferential direction to allow adapted to the respective wind conditions angle of attack, but that with a common rotation of the rotor blades 2, 3 to 180 °, the rotor blades 2, 3 can not be rotated past each other because of the wing width, if the blade width is maintained up to the area of the rotor hub 5 of the turbine rotor 1 without corresponding taper, which is advantageous for the exploitation of wind energy.
  • the rotor blades 2, 3 are not pivoted together, but in groups one after the other.
  • the rotor blades 2 form a group of wings and the rotor blades 3 arranged between the rotor blades 2 of this group of wings form a second group of wings.
  • the rotor blades 2 of one group of wings despite their considerable profile width in the area of the wing root, can be rotated past the rotor blades 3 of the other, stationary group of wings, as indicated by dot-dash lines.
  • the remaining rotor blades 3 of the second group of wings can be rotated in the same way by 180 °.
  • the rotor hub 5 In order to rotate the rotor blades 2, 3 in groups about their longitudinal axis, the rotor hub 5 according to the exemplary embodiment according to FIGS. 1 and 2 comprises a coaxial hollow shaft 6 for the rotary actuator 7 of the rotor blades 2.
  • the rotary actuators 8 for the rotor blades 3 another group of wings are driven via a hollow shaft 6 coaxially penetrating shaft 9, wherein the hollow shaft 6 and the shaft 9 are assigned to each other separately controllable drive motors 10.
  • the bevel gears 7 and 8 comprise angle gear 11, 12.
  • bevel gears 11 and 12 each have a common, connected to the shaft 9 and the hollow shaft 6 bevel gear 13, 14, so with the driving of the common bevel gears 13, 14 via the associated Angular drives 11, 12 each rotor blades 2, 3 of a wing group groups are jointly adjusted.
  • these rotor blades 2, 3 of both groups of wings can be adjusted together by the provided therefor drive motors 10 are acted upon at the same time.
  • the groupwise rotational adjustment of the rotor blades 2, 3 can be made in accordance with FIGS. 3 and 4 also via the individual rotor blades 2, 3 associated actuating drives 15.
  • the servomotors 15 are group-wise to control so that when stationary rotor blades 2, the rotor blades 3 are arranged between these rotor blades 3 are rotated by 180 ° before the rotor blades 2 are turned back, as soon as the rotor blades 3 rotated by 180 ° position for the opposing Have reached the flow of the turbine rotor 1.
  • a control device 16 is provided, which acts on the individual servomotors 15 accordingly, as indicated in FIG. 3.
  • About encoder 17 the respective rotational position of the individual rotor blades 2, 3 is detected and forwarded to the control device 16.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General 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)
  • Wind Motors (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

L'invention concerne une turbine éolienne présentant un rotor de turbine (10) traversé axialement par le vent, dont les pales (2, 3) sont montées dans un moyeu de rotor (5) de façon à pouvoir pivoter sur 180° autour de leur axe longitudinal. L'objectif de l'invention est de créer des conditions de conception favorables. A cet effet, les pales de rotor (2, 3) se succédant dans le sens périphérique du moyeu de rotor (5) appartiennent en alternance à l'un de deux groupes de pales et les pales de rotor (2) d'un groupe de pales peuvent pivoter soit indépendamment des pales de rotor (3) de l'autre groupe soit conjointement avec ces dernières.
PCT/AT2011/000328 2010-08-04 2011-08-03 Turbine éolienne Ceased WO2012016262A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA1307/2010 2010-08-04
AT0130710A AT510035B1 (de) 2010-08-04 2010-08-04 Windturbine

Publications (2)

Publication Number Publication Date
WO2012016262A2 true WO2012016262A2 (fr) 2012-02-09
WO2012016262A3 WO2012016262A3 (fr) 2012-06-07

Family

ID=44645403

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2011/000328 Ceased WO2012016262A2 (fr) 2010-08-04 2011-08-03 Turbine éolienne

Country Status (2)

Country Link
AT (1) AT510035B1 (fr)
WO (1) WO2012016262A2 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004011543A (ja) 2002-06-07 2004-01-15 Fuji Heavy Ind Ltd 水平軸型風車
JP2006118363A (ja) 2004-10-19 2006-05-11 Mitsuo Shinozaki 高効率プロペラ
DE202008016665U1 (de) 2008-12-01 2009-03-26 Glushko, Viktor, Dr. Horizontalachsen-Rotor mit verstellbaren Rotorblättern

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4364708A (en) * 1981-08-27 1982-12-21 David Constant V Windmill
ATE257218T1 (de) * 1998-08-13 2004-01-15 Neg Micon As Regelvorrichtung für das verstellen und stillsetzen der flügel einer windkraftmaschine
EP2450568B1 (fr) * 2005-05-31 2018-04-18 Hitachi, Ltd. Éolienne à axe horizontal
CN101660493B (zh) * 2008-08-29 2014-10-01 维斯塔斯风力系统有限公司 用于测试桨距系统故障的桨距控制系统

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004011543A (ja) 2002-06-07 2004-01-15 Fuji Heavy Ind Ltd 水平軸型風車
JP2006118363A (ja) 2004-10-19 2006-05-11 Mitsuo Shinozaki 高効率プロペラ
DE202008016665U1 (de) 2008-12-01 2009-03-26 Glushko, Viktor, Dr. Horizontalachsen-Rotor mit verstellbaren Rotorblättern

Also Published As

Publication number Publication date
WO2012016262A3 (fr) 2012-06-07
AT510035A4 (de) 2012-01-15
AT510035B1 (de) 2012-01-15

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