EP2419633A1 - Station éolienne flottante - Google Patents

Station éolienne flottante

Info

Publication number
EP2419633A1
EP2419633A1 EP10764704A EP10764704A EP2419633A1 EP 2419633 A1 EP2419633 A1 EP 2419633A1 EP 10764704 A EP10764704 A EP 10764704A EP 10764704 A EP10764704 A EP 10764704A EP 2419633 A1 EP2419633 A1 EP 2419633A1
Authority
EP
European Patent Office
Prior art keywords
power station
wind power
installation
stabilizing
gyro
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Withdrawn
Application number
EP10764704A
Other languages
German (de)
English (en)
Other versions
EP2419633A4 (fr
Inventor
Arnfinn Nergaard
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.)
Universitetet i Stavanger
Original Assignee
Universitetet i Stavanger
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 Universitetet i Stavanger filed Critical Universitetet i Stavanger
Publication of EP2419633A1 publication Critical patent/EP2419633A1/fr
Publication of EP2419633A4 publication Critical patent/EP2419633A4/fr
Withdrawn legal-status Critical Current

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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
    • B63B39/04—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by using gyroscopes directly
    • 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
    • F03D13/22—Foundations specially adapted for wind motors
    • 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
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/93—Mounting on supporting structures or systems on a structure floating on a liquid surface
    • 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
    • F05B2240/95—Mounting on supporting structures or systems offshore
    • 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
    • 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

Definitions

  • This invention relates to a buoyant wind power station. More particularly, it relates to a buoyant wind power station in which a wind turbine is placed on an installation.
  • a floating vessel in any form, such as a buoy, a barge, a ship or a platform.
  • Floating installations are subjected to partly considerable environmental forces from winds, currents and waves. Accord- ing to the kind of installation, environmental forces may set up considerable movements in the six degrees of freedom. In windmill structures, which are relatively tall, movements from pitching and rolling may constitute structural restrictions in the construction of the wind power station.
  • additional floats are placed around a main float.
  • the additional floats are of such a design that they provide considerably increased buoyancy if they are moved down into the water.
  • WO 03/004869 discloses a buoyant wind power station in which the design of the float together with the moorings restricts the tilt of the windmill.
  • the invention has for its object to remedy or reduce at least one of the drawbacks of the prior art .
  • a buoyant wind power station in which a wind turbine is placed on an installation is provided and is characterized by the installation being provided with a stabilizing gyro.
  • a stabilizing gyro arranged in the wind power station will counteract angular deflections of the wind power station around angular axes in directions other than the stabilizing gyro's own rotational axis. If the gyro rotates around a vertical axis, angular deflections in the form of rolling and pitching due to at least winds, waves and currents will be counteracted.
  • the positioning of the stabilizing gyro in the installation depends on the design of the installation and must, on the basis of known principles, be adjusted with respect to whether the centre of gravity of the wind power station is above or below the centre of buoyancy, among other things.
  • the stabilizing gyro may be constituted by one or more masses that are arranged in suitable positions, for example as part of the wind turbine, the axle, gear or generator of the wind turbine .
  • the stabilizing gyro may be constituted by a separate flywheel rotating at relatively great speed, or a relatively large mass rotating at considerably lower speed.
  • the relatively large mass is positioned at a relatively low level in the installation, it may form part of the ballast of the installation.
  • the mass of a slow-rotating stabilizing gyro may constitute 10-80 % of the installation weight, for example. Calculations show that at speeds of between 5 and 20 revolutions per minute, a good effect is achieved when the mass constitutes 30- 60 % of the installation weight.
  • the stabilizing gyro may surround the drive shaft of the wind turbine. If the drive shaft is vertical, as, with advantage, it may be if a Gelhard or Darrieus turbine is used, or also with other turbines when the generator of the windmill power station is placed in the installation, the stabilizing gyro will function in accordance with the intention.
  • the stabilizing gyro may be driven by the drive shaft via a gear, or directly by the drive shaft.
  • the stabilizing gyro may be driven by, for example, an electromotor.
  • the installation may be provided with at least two stabilizing gyros, wherein two stabilizing gyros may be counter- rotating.
  • the stabilizing gyros may have different axes of rotation.
  • a stabilizing gyro in accordance with the invention could stabilize pitch 5 and roll deflections to a substantial extent.
  • Figure 1 shows schematically a wind power station which iso provided with a stabilizing gyro according to the invention
  • Figure 2 shows schematically a wind power station in an alternative embodiment.
  • the reference numeral 1 indicates a buoyants wind power station including an installation 2 floating in the sea 4 and being moored by means of moorings 6.
  • the installation 2 is provided with ballast 8.
  • a drive shaft 10 projects vertically up from an electric generator 12, arranged relatively low in the installation 2, and0 up to a wind turbine 14 which is at a level above the installation 2.
  • the drive shaft 10 rotates around a centre axis 16 and is supported in the installation 2 by means of an upper bearing 18 and a lower bearing 20.
  • the drive shaft 10 is arranged to fol-s low the pitch and roll movements of the installation 2.
  • a stabilizing gyro 22 in the form of a rotatable mass is supported around the drive shaft 10 by means of gyro bearings 24.
  • the stabilizing gyro 22 is driven from the drive shaft 10 by way of a gear 26.
  • the torque is transmitted to the generator 12 via the drive shaft 10.
  • Some of the torque is transmitted by way of the gear 26 to the stabilizing gyro 22 which is given a relatively high speed of rotation.
  • the stabilizing gyro 22 When a pitch or roll movement rotates the centre axis 16 out of its vertical position, the stabilizing gyro 22 will, because of a gyro's way of working, known per se, counteract this rotation.
  • the stabilizing gyro 22 is placed relatively low in the installation 2, has a considerable mass relative to the total mass of the installation 2, has a relatively large radius, rotates relatively slowly and contributes to lowering the centre of gravity to a lower level.
  • the stabilizing gyro 22 may be connected to the drive shaft 10, whereby the gyro bearings 24 and the gear 26 are redundant.

Landscapes

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

Abstract

L'invention porte sur une station éolienne flottante (1) dans laquelle une turbine d'éolienne (14) est disposée sur une installation (2), et dans laquelle l'installation (2) comporte un gyroscope de stabilisation (22).
EP10764704.2A 2009-04-16 2010-04-14 Station éolienne flottante Withdrawn EP2419633A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20091473A NO329740B1 (no) 2009-04-16 2009-04-16 Anordning ved flytende vindkraftverk
PCT/NO2010/000134 WO2010120182A1 (fr) 2009-04-16 2010-04-14 Station éolienne flottante

Publications (2)

Publication Number Publication Date
EP2419633A1 true EP2419633A1 (fr) 2012-02-22
EP2419633A4 EP2419633A4 (fr) 2016-11-30

Family

ID=42982685

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10764704.2A Withdrawn EP2419633A4 (fr) 2009-04-16 2010-04-14 Station éolienne flottante

Country Status (3)

Country Link
EP (1) EP2419633A4 (fr)
NO (1) NO329740B1 (fr)
WO (1) WO2010120182A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8421263B2 (en) * 2010-10-27 2013-04-16 Florida Turbine Technologies, Inc. Floating vertical axis wind turbine
EP2685093B1 (fr) 2012-07-10 2016-06-29 Alstom Wind, S.L.U. Stabilisation d'éolienne
WO2016203421A1 (fr) * 2015-06-16 2016-12-22 Orlando Lozzi Générateur éolien à pales multiples en mer auto-stabilisé avec axe vertical
SE539182C2 (en) * 2015-07-02 2017-05-02 Seatwirl Ab Floating wind energy harvesting apparatus with replaceable energy converter
FR3048740B1 (fr) 2016-03-08 2018-03-30 Centre National De La Recherche Scientifique Eolienne flottante a turbines jumelles a axe vertical a rendement ameliore
DE102017106434A1 (de) * 2017-03-24 2018-09-27 Athanasios Dafnis Schwimmende offshore Windkraftanlage mit einem vertikalen Rotor und Windpark in Modularbauweise umfassend mehrere solcher Windkraftanlagen
IT202200011225A1 (it) * 2022-05-27 2023-11-27 Bau Gianni Sistema di generatori eolici ad asse di rotazione verticale con turbine di tipo savonius

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3622119A1 (de) * 1986-07-02 1988-01-14 Mozdzanowski Joachim Windkraftwerk fuer die stationierung auf see
US6949842B2 (en) * 2001-07-10 2005-09-27 Matthew Earley Centrifugal weight control for a wind or water turbine
JP2003252288A (ja) * 2002-02-27 2003-09-10 Hitachi Zosen Corp 洋上風力発電の浮体式基礎構造物
DE20206234U1 (de) * 2002-04-19 2002-08-08 Gelhard Theresia Schwimmfähige Windkraftanlage
DE10337278A1 (de) * 2003-08-11 2005-03-10 Roland Mahler Offshorewindkraftanlage
JP4516321B2 (ja) * 2004-01-13 2010-08-04 日本郵船株式会社 舶用直線翼垂直軸型風力発電装置
US7100438B2 (en) * 2004-07-06 2006-09-05 General Electric Company Method and apparatus for determining a site for an offshore wind turbine

Also Published As

Publication number Publication date
NO329740B1 (no) 2010-12-13
EP2419633A4 (fr) 2016-11-30
NO20091473L (no) 2010-10-18
WO2010120182A1 (fr) 2010-10-21

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