EP2516851A1 - Procédé de montage d'un système de commande de pas hydraulique dans un moyeu d'éolienne - Google Patents

Procédé de montage d'un système de commande de pas hydraulique dans un moyeu d'éolienne

Info

Publication number
EP2516851A1
EP2516851A1 EP10832677A EP10832677A EP2516851A1 EP 2516851 A1 EP2516851 A1 EP 2516851A1 EP 10832677 A EP10832677 A EP 10832677A EP 10832677 A EP10832677 A EP 10832677A EP 2516851 A1 EP2516851 A1 EP 2516851A1
Authority
EP
European Patent Office
Prior art keywords
wtg
pitch control
control system
hydraulic
hub
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Withdrawn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
EP10832677A
Other languages
German (de)
English (en)
Other versions
EP2516851A4 (fr
Inventor
Ole Fosgrau Rasmussen
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.)
Hydratech Industries Wind Power AS
Original Assignee
Hydratech Industries Wind Power AS
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 Hydratech Industries Wind Power AS filed Critical Hydratech Industries Wind Power AS
Publication of EP2516851A1 publication Critical patent/EP2516851A1/fr
Publication of EP2516851A4 publication Critical patent/EP2516851A4/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Withdrawn legal-status Critical Current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
    • 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
    • F03D1/0691—Rotors characterised by their construction elements of the hub
    • 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
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • 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
    • F03D7/0224—Adjusting blade pitch
    • 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
    • F05B2230/60—Assembly methods
    • 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
    • F05B2250/00—Geometry
    • F05B2250/10—Geometry two-dimensional
    • F05B2250/11—Geometry two-dimensional triangular
    • 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
    • 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
    • F05B2270/00—Control
    • F05B2270/60—Control system actuates through
    • F05B2270/604—Control system actuates through hydraulic actuators
    • 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
    • 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

Definitions

  • the present invention relates to a pitch control system for wind turbine generators (WTG) of the type mentioned in the preamble to claim 1.
  • WTG wind turbine generators
  • known pitch control systems using either an electric or a hydraulic pitch control solution. Both systems have advantages and only a few disadvantages. More specific the present invention relates to a hydraulic pitch control system which has many advantages and only a few disadvantages compared with an electric pitch control solution.
  • known hydraulic pitch control systems is rather complicated apparatuses requiring a lot of assembling work including complicated functionality testing before the mountings in situ and which normally also requires intensive security test after the mountings work in situ of such complicated pitch control systems.
  • the present invention has for its purpose to provide a new and improved hydraulic pitch control system, by means of which may be obtained a minimum of in situ mounting works and where in situ testing of the pith control system may even be superfluous.
  • the hydraulic pitch control system according to the invention is characterized in that said hydraulic pitch control system is in the form of a prefabricated, assembled and tested one piece hydraulic pitch control system unit ready for in situ mounting inside said WTG hub with a minimum of mounting work.
  • said minimum mounting work may consists in connecting a predominantly triangular front frame structure of a carrying frame system for said hydraulic pitch control unit to a inside of a hub connection flange of said WTG hub opposite to an external connection flange for a main generator shaft of the WTG, by means of three sets of each two - four bolts and by connecting three sets of each two hydraulic tubes of the pitch control system to each of three hydraulic actuators for the WTG blades.
  • the pitch control system according to the invention comprising energy re- serves in the form of a number of hydraulic pressure accumulators in the form of hydraulic cylinders which at one side of a piston are filled with hydraulic fluid while at the opposite side of the piston a pressure medium such as compressed nitrogen is present.
  • the pitch control system according to the invention is furthermore such provided, that said carrying frame system comprise three inclined carrying arm members extending from said triangular front frame structure to a central carrying frame structure at the opposite end of the pitch control system, where active parts of three uniform partial hydraulic pitch control systems are situated.
  • the pitch control system according to the invention is such provided, that said cylindrical hydraulic pressure accumulators are arranged in three groups so as to form a mutually balanced isosceles triangle, which groups of hydraulic pressure accumulators at one end are connected to said triangular front frame structure and at the opposite end are mutual interconnected at adjacent corners.
  • each of said three groups consists of four cylindrical hydraulic pressure accumulators which at external side is provided with a plate shaped cover also having function as standing platform when entering the WTG hub for maintenance service of the pitch control unit.
  • hydraulic pith control system fulfils as a one piece hydraulic pitch control system the following important features: • Assembled outside the WTG hub
  • Fig. 1 shows a perspective view of an embodiment of a prefabricated hydraulic pitch control system according to the invention
  • Fig. 2 shows a perspective view illustrating how the hydraulic pitch control system as a prefabricated unit is mounted inside a WTG hub opposite to the generator main shaft,
  • Fig. 3 shows the size of the WTG hub and the hydraulic pitch control system by showing a grown up person inside the WTG hub as well
  • Fig. 4 shows the hydraulic pitch control system as seen from the rear end of The WTG hub or the position of the generator main shaft
  • Fig. 5 shows the hydraulic pitch control system as seen from the opposite open front end of the WTG hub.
  • Fig. 1 shows an embodiment of a prefabricated one piece hydraulic pitch control system unit 2 according to the invention comprising three uniform hydraulic pitch control systems 4 each of which in principle is similar to the hydraulic pitch control system shown in Fig. 6 and where the three hydraulic pitch control systems 4 are arranged in a triangle extending cantilever from a triangular front frame structure 6 of a carrying frame system 8 adapted inside a WTG hub 10 (Figs. 2-5) to be connected to an inside of a hub connection flange 12 opposite to an external connection flange for a main generator shaft.
  • Said carrying frame system 6 comprise three inclined carrying arm members 14 extending from said triangular front frame structure 6 to a central carrying frame structure at the opposite end of the hydraulic pitch control system unit 2, where active parts of three uniform partial hydraulic pitch control systems 4 are situated.
  • Each of the three hydraulic pitch control systems 4 comprise a group of four hydraulic pressure accumulators 16 in the form of hydraulic cylinders 18, which at one side of a piston is filled with hydraulic fluid, while at the opposite side of said piston a pressure medium such as nitrogen is present.
  • Each of the four groups of hydraulic pressure ac- cumulators are provided with a plate shaped cover 20 also having function as standing platform when persons entering the WTG hub 10 for maintenance service of the pitch control systems 4.
  • the one piece hydraulic pitch control system unit 2 is as already mentioned mounted extending cantilever from the triangular carrying frame system 6 inside the WTG hub 10 by means of only a few bolts at the respective outside corners of the carrying frame system 6. Afterwards the in situ mounting is completed by connecting two hydraulic tubes between each hydraulic pitch control systems 4 and the hydraulic actuator of each WTG blades.
  • hydraulic pith control system fulfils as a one piece hydraulic pitch control system unit 2 the following important features: ⁇ Assembled outside the WTG hub
  • the pitch control system is adapted to be assembled at the main axle interface in the hub, and without any stiffeners in order to avoid loads to the pith control system originating from the structural flexing of the WTG hub.
  • the pitch control system shows a very compact design and construction that enables the pitch control system as a complete assembly to enter the WTG hub either from the main axle side or from the front side of the WTG hub.
  • the entire pitch control system unit 2 according to the invention is maintenance service friendly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Wind Motors (AREA)

Abstract

La présente invention concerne un système de commande de pas pour générateur d'éolienne (WTG), en particulier un système de commande de pas hydraulique, du type conçu pour être monté dans un moyeu de WTG (10) pour commander le pas des aubes du WTG par rapport à la direction du vent de manière à optimiser la puissance du WTG et à obtenir un pas neutre des aubes du WTG pendant le freinage du WTG, ledit système de commande de pas hydraulique se présentant sous la forme d'une unité monobloc de système de commande de pas hydraulique préfabriquée, assemblée et testée (2), prête à être montée in situ dans ledit moyeu de WTG (10) avec un minimum de travail de montage. Ceci permet d'obtenir qu'un travail de montage in situ jusqu'à présent plutôt difficile dans le moyeu du WTG puisse être réduit à un minimum et que les essais in situ du système de commande de pas puissent même être superflus. L'installation du système de commande de pas dans le moyeu du WTG permet en outre de réduire considérablement le temps nécessaire pour le travail de montage in situ.
EP10832677.8A 2009-11-25 2010-11-24 Procédé de montage d'un système de commande de pas hydraulique dans un moyeu d'éolienne Withdrawn EP2516851A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA200970229 2009-11-25
PCT/DK2010/050318 WO2011063815A1 (fr) 2009-11-25 2010-11-24 Procédé de montage d'un système de commande de pas hydraulique dans un moyeu d'éolienne

Publications (2)

Publication Number Publication Date
EP2516851A1 true EP2516851A1 (fr) 2012-10-31
EP2516851A4 EP2516851A4 (fr) 2014-06-18

Family

ID=44065883

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10832677.8A Withdrawn EP2516851A4 (fr) 2009-11-25 2010-11-24 Procédé de montage d'un système de commande de pas hydraulique dans un moyeu d'éolienne

Country Status (2)

Country Link
EP (1) EP2516851A4 (fr)
WO (1) WO2011063815A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9695802B2 (en) 2012-05-22 2017-07-04 United Technologies Corporation Wind turbine load mitigation

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK2653716T3 (en) * 2012-04-16 2015-11-23 Siemens Ag Installing / removing a hub on / from a nacelle of a wind turbine using a wing pitch angle adjustment device of the hub to orient the hub
JP5894890B2 (ja) * 2012-09-06 2016-03-30 株式会社日立製作所 風力発電システム、風力発電システムの組み立て方法、または風力発電システムの点検方法
CN109356793B (zh) * 2018-08-31 2020-02-18 北京金风科创风电设备有限公司 安装架、能量存储单元、变桨系统、风力发电机组及方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19739164A1 (de) * 1997-08-25 1999-03-04 Inst Solare Energieversorgungstechnik Iset Windenergieanlage
EP1241350A1 (fr) * 2001-01-22 2002-09-18 Fundacion Fatronik Dispositif sur rotors pour le contrôle indépendant de la variation du pas de chaque pale
US20060188371A1 (en) * 2002-04-24 2006-08-24 Mogens Christensen Wind turbine, hydraulic system, air bleed system and method of controlling at least two wind turbine blades

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1146079A (fr) * 1980-03-17 1983-05-10 Edward H. Kusiak Regulateur du pas d'helice d'une eolienne
JP4142548B2 (ja) * 2003-10-09 2008-09-03 ヤンマー株式会社 風力発電装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19739164A1 (de) * 1997-08-25 1999-03-04 Inst Solare Energieversorgungstechnik Iset Windenergieanlage
EP1241350A1 (fr) * 2001-01-22 2002-09-18 Fundacion Fatronik Dispositif sur rotors pour le contrôle indépendant de la variation du pas de chaque pale
US20060188371A1 (en) * 2002-04-24 2006-08-24 Mogens Christensen Wind turbine, hydraulic system, air bleed system and method of controlling at least two wind turbine blades

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2011063815A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9695802B2 (en) 2012-05-22 2017-07-04 United Technologies Corporation Wind turbine load mitigation

Also Published As

Publication number Publication date
WO2011063815A1 (fr) 2011-06-03
EP2516851A4 (fr) 2014-06-18

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