HK1182160A1 - A method for damping tower vibrations in a wind turbine installation - Google Patents

A method for damping tower vibrations in a wind turbine installation

Info

Publication number
HK1182160A1
HK1182160A1 HK13109390.2A HK13109390A HK1182160A1 HK 1182160 A1 HK1182160 A1 HK 1182160A1 HK 13109390 A HK13109390 A HK 13109390A HK 1182160 A1 HK1182160 A1 HK 1182160A1
Authority
HK
Hong Kong
Prior art keywords
wind turbine
turbine installation
damping tower
tower vibrations
vibrations
Prior art date
Application number
HK13109390.2A
Other languages
English (en)
Chinese (zh)
Inventor
Finn Gunnar Nielsen
Bjrn Skaare
John Olav Giver Tande
Ian Norheim
Kjetil Uhlen
Original Assignee
Hywind 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 Hywind As filed Critical Hywind As
Publication of HK1182160A1 publication Critical patent/HK1182160A1/xx

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
    • 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
    • F03D7/0296—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor to prevent, counteract or reduce noise emissions
    • 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
    • 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
    • F03D7/04—Automatic control; Regulation
    • F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
    • F03D7/043—Automatic control; Regulation by means of an electrical or electronic controller characterised by the type of control logic
    • F03D7/044—Automatic control; Regulation by means of an electrical or electronic controller characterised by the type of control logic with PID control
    • 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
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • 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
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • F03D9/255—Wind motors characterised by the driven apparatus the apparatus being an electrical generator connected to electrical distribution networks; Arrangements therefor
    • 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
    • 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
    • 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
    • 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
    • F05B2260/00—Function
    • F05B2260/96—Preventing, counteracting or reducing vibration or noise
    • 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)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Ocean & Marine Engineering (AREA)
  • Wind Motors (AREA)
HK13109390.2A 2005-11-01 2013-08-12 A method for damping tower vibrations in a wind turbine installation HK1182160A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO20055118A NO325856B1 (no) 2005-11-01 2005-11-01 Fremgangsmåte for demping av ustabile frie stivlegeme egensvingninger ved en flytende vindturbininstallasjon

Publications (1)

Publication Number Publication Date
HK1182160A1 true HK1182160A1 (en) 2013-11-22

Family

ID=35432892

Family Applications (1)

Application Number Title Priority Date Filing Date
HK13109390.2A HK1182160A1 (en) 2005-11-01 2013-08-12 A method for damping tower vibrations in a wind turbine installation

Country Status (11)

Country Link
US (1) US8186949B2 (fr)
EP (1) EP1952017B1 (fr)
JP (1) JP2009513881A (fr)
CN (2) CN102943743B (fr)
BR (1) BRPI0618151B1 (fr)
CA (1) CA2627148C (fr)
ES (1) ES2560504T3 (fr)
HK (1) HK1182160A1 (fr)
NO (1) NO325856B1 (fr)
PL (1) PL1952017T3 (fr)
WO (1) WO2007053031A1 (fr)

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004013131A1 (de) * 2004-03-17 2005-10-06 Siemens Ag Windkraftanlage
BRPI0621442A2 (pt) * 2006-03-16 2011-12-13 Vestas Wind Sys As método para reduzir fadiga por efeito de cargas nos componentes de uma turbina eólica submetida a esforço assimétrico de carga de seu rotor, sistema de controle para reduzir as fadiga por efeito de cargas nos componentes de uma turbina eólica submetidos a esforço assimétrico de carga no plano de seu rotor, turbina eólica, e área de captação de ventos
WO2008000265A1 (fr) * 2006-06-30 2008-01-03 Vestas Wind Systems A/S Tour d'éolienne et système de commande et procédé pour modifier la fréquence propre d'une tour d'éolienne
NO335851B1 (no) * 2006-08-22 2015-03-09 Hywind As Fremgangsmåte ved vindturbininstallasjon for demping av tårnsvingninger
US20100111693A1 (en) * 2006-12-28 2010-05-06 Kitchener Clark Wilson Wind turbine damping of tower resonant motion and symmetric blade motion using estimation methods
EP2132437B2 (fr) * 2007-03-30 2018-10-03 Vestas Wind Systems A/S Eolienne avec commande de pas
DK2063110T4 (da) 2007-11-26 2019-09-23 Siemens Ag Fremgangsmåde til dæmpning af tårnvibrationer af en vindmølle og hældningsstyresystem
DE102007063082B4 (de) 2007-12-21 2010-12-09 Repower Systems Ag Verfahren zum Betreiben einer Windenergieanlage
US8277185B2 (en) * 2007-12-28 2012-10-02 General Electric Company Wind turbine, wind turbine controller and method for controlling a wind turbine
US8004100B2 (en) * 2008-03-14 2011-08-23 General Electric Company Model based wind turbine drive train vibration damper
DK2107236T3 (en) 2008-04-02 2015-02-02 Siemens Ag Method for attenuating tower vibration of a wind turbine and wind turbine control system
EP2123906A1 (fr) * 2008-05-21 2009-11-25 Siemens Aktiengesellschaft Procédé et dispositif pour amortir les vibrations de la tour dans une éolienne
ES2374666T3 (es) * 2008-07-16 2012-02-20 Siemens Aktiengesellschaft Método y disposición para amortiguar oscilaciones de torre.
GB2466649B (en) * 2008-12-30 2014-01-29 Hywind As Blade pitch control in a wind turbine installation
EP2224129B1 (fr) * 2009-02-27 2016-09-21 Acciona Windpower S.a. Procédé de commande d'une éolienne pour amortir les vibrations
GB0907132D0 (en) * 2009-04-24 2009-06-03 Statoilhydro Asa Wave energy extraction
US20100310376A1 (en) * 2009-06-09 2010-12-09 Houvener Robert C Hydrokinetic Energy Transfer Device and Method
US8207625B1 (en) 2009-09-28 2012-06-26 Constantine Gus Cristo Electrical power generating arrangement
US8529206B2 (en) * 2010-01-27 2013-09-10 Mitsubishi Heavy Industries, Ltd. Wind turbine generator and yaw rotation control method for wind turbine generator
US8022566B2 (en) * 2010-06-23 2011-09-20 General Electric Company Methods and systems for operating a wind turbine
DE102010041508A1 (de) * 2010-09-28 2012-03-29 Repower Systems Se Drehzahlanpassung einer Windenergieanlage
EP2463517B1 (fr) * 2010-12-08 2014-06-25 Siemens Aktiengesellschaft Methode et système de contrôle pour la réduction des vibrations d'une éolienne
US8215896B2 (en) * 2010-12-20 2012-07-10 General Electric Company Apparatus and method for operation of an off-shore wind turbine
US8169098B2 (en) * 2010-12-22 2012-05-01 General Electric Company Wind turbine and operating same
EP2479426B1 (fr) * 2011-01-24 2017-06-28 Siemens Aktiengesellschaft Procédés et systèmes pour déterminer un signal de décalage d'angle de pas et pour contrôler la fréquence d'un rotor d'une éolienne pour le contrôle d'évitement de la vitesse
JP6187935B2 (ja) * 2011-11-04 2017-08-30 国立研究開発法人 海上・港湾・航空技術研究所 浮体式洋上風力発電施設の制御装置
US20120133134A1 (en) * 2011-11-15 2012-05-31 General Electric Company Method and apparatus for damping vibrations in a wind energy system
ES2407955B1 (es) 2011-12-12 2014-05-08 Acciona Windpower, S.A. Procedimiento de control de un aerogenerador
US9644606B2 (en) * 2012-06-29 2017-05-09 General Electric Company Systems and methods to reduce tower oscillations in a wind turbine
GB201223088D0 (en) 2012-12-20 2013-02-06 Statoil Asa Controlling motions of floating wind turbines
WO2014102956A1 (fr) * 2012-12-27 2014-07-03 三菱重工業株式会社 Procédé et dispositif pour commander un dispositif de génération d'électricité à énergie éolienne à corps flottant, et dispositif de génération d'électricité à énergie éolienne à corps flottant
CN103244349B (zh) * 2013-04-24 2015-04-01 北京金风科创风电设备有限公司 风机塔架振动抑制系统和提高风机切出风速的控制系统
JP6388759B2 (ja) * 2013-05-29 2018-09-12 エムエイチアイ ヴェスタス オフショア ウィンド エー／エス 浮体式風力発電装置
DK3004636T3 (en) 2013-05-30 2017-02-27 Mhi Vestas Offshore Wind As Slope damping of a floating wind turbine
CN103334876B (zh) * 2013-07-16 2015-04-01 北京金风科创风电设备有限公司 风机叶片在叶轮旋转平面的三阶频率振动抑制系统及方法
CN103541861B (zh) * 2013-10-30 2016-02-24 新疆金风科技股份有限公司 浮动式风电机组塔架负阻尼抑制系统和方法
US10145361B2 (en) 2013-11-25 2018-12-04 General Electric Company Methods and systems to shut down a wind turbine
US10619623B2 (en) 2013-12-09 2020-04-14 Verstas Wind Systems A/S Selective wind turbine damping using active damping system
US10480486B2 (en) * 2014-08-13 2019-11-19 Vestas Wind Systems A/S Improvements relating to the determination of rotor imbalances in a wind turbine
DK179069B1 (en) * 2015-09-04 2017-10-02 Envision Energy Denmark Aps A wind turbine and a method of operating a wind turbine with a rotational speed exclusion zone
JP6506664B2 (ja) * 2015-09-10 2019-04-24 株式会社日立製作所 風力発電システムまたは風力発電システムの制御方法
CN105604790B (zh) * 2015-12-29 2018-05-04 北京天诚同创电气有限公司 风电机组及其稳定控制装置与方法
EP3724489B1 (fr) * 2017-12-14 2021-12-08 Vestas Wind Systems A/S Amortissement de pylône dans la production d'énergie éolienne
DE102018005134A1 (de) 2018-06-28 2020-01-02 Senvion Gmbh Verfahren und Steuerung zum Betreiben einer Windenergieanlage
US11635062B2 (en) 2018-11-07 2023-04-25 General Electric Renovables Espana, S.L. Wind turbine and method to determine modal characteristics of the wind turbine in a continuous manner
US11208986B2 (en) 2019-06-27 2021-12-28 Uptake Technologies, Inc. Computer system and method for detecting irregular yaw activity at a wind turbine
US10975841B2 (en) * 2019-08-02 2021-04-13 Uptake Technologies, Inc. Computer system and method for detecting rotor imbalance at a wind turbine
ES2812374B2 (es) * 2019-09-16 2022-02-17 Esteyco S A Procedimiento de control de un aerogenerador de torre mar adentro de tipo flotante, asi como el sistema y el aerogenerador que incorporan este procedimiento
CN111396249B (zh) * 2020-03-31 2022-08-30 新疆金风科技股份有限公司 在阵风风况下降低塔架的载荷的方法及装置
EP4063643A1 (fr) 2021-03-22 2022-09-28 Siemens Gamesa Renewable Energy A/S Procédé et dispositif de commande du fonctionnement d'une éolienne flottante
CN114562427B (zh) * 2022-02-21 2024-06-18 中国科学院工程热物理研究所 一种海上风力机
CN116505598B (zh) * 2023-06-26 2023-09-15 湖南大学 一种风电机群服役质量动态调控方法及系统

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5817884A (ja) 1981-07-23 1983-02-02 Ebara Infilco Co Ltd 復水処理方法
US4435647A (en) * 1982-04-02 1984-03-06 United Technologies Corporation Predicted motion wind turbine tower damping
US4420692A (en) * 1982-04-02 1983-12-13 United Technologies Corporation Motion responsive wind turbine tower damping
US4515525A (en) * 1982-11-08 1985-05-07 United Technologies Corporation Minimization of the effects of yaw oscillations in wind turbines
DE19731918B4 (de) * 1997-07-25 2005-12-22 Wobben, Aloys, Dipl.-Ing. Windenergieanlage
CN1092760C (zh) * 1998-01-14 2002-10-16 丹麦控制工程公司 测量和控制风力发动机的振动的方法
DE10016912C1 (de) * 2000-04-05 2001-12-13 Aerodyn Eng Gmbh Turmeigenfrequenzabhängige Betriebsführung von Offshore-Windenergieanlagen
DE10106208C2 (de) * 2001-02-10 2002-12-19 Aloys Wobben Windenergieanlage
DE10113038C2 (de) * 2001-03-17 2003-04-10 Aloys Wobben Turmschwingungsüberwachung
WO2003004869A1 (fr) * 2001-07-06 2003-01-16 Vestas Wind Systems A/S Eolienne en mer a fondation flottante
JP2003113769A (ja) * 2001-10-03 2003-04-18 Mitsubishi Heavy Ind Ltd ブレードピッチ角度制御装置および風力発電装置
US6888262B2 (en) * 2003-02-03 2005-05-03 General Electric Company Method and apparatus for wind turbine rotor load control
NO20033807D0 (no) 2003-08-27 2003-08-27 Norsk Hydro As Vindmölle for anvendelse offshore
WO2005083266A1 (fr) * 2004-02-27 2005-09-09 Mitsubishi Heavy Industries, Ltd. Aerogenerateur, son procede d’amortissement actif des vibrations et tour de turbine eolienne
NO20041208L (no) * 2004-03-22 2005-09-23 Sway As Fremgangsmate for reduskjon av aksialkraftvariasjoner for rotor samt retningskontroll for vindkraft med aktiv pitchregulering
US7317260B2 (en) * 2004-05-11 2008-01-08 Clipper Windpower Technology, Inc. Wind flow estimation and tracking using tower dynamics
AU2005308558B2 (en) 2004-11-29 2010-11-18 Swissinnov Product S.a.r.l Volumetric pump with reciprocated and rotated piston
NO20052704L (no) * 2005-06-06 2006-12-07 Norsk Hydro As Flytende vindturbininstallasjon.
ES2341469T3 (es) 2005-07-18 2010-06-21 Clipper Windpower, Inc. Estimacion y seguimiento de flujos de viento utilizando la dinamica de torre.
US20100111693A1 (en) * 2006-12-28 2010-05-06 Kitchener Clark Wilson Wind turbine damping of tower resonant motion and symmetric blade motion using estimation methods

Also Published As

Publication number Publication date
JP2009513881A (ja) 2009-04-02
CN101300422B (zh) 2012-11-07
BRPI0618151B1 (pt) 2019-01-02
ES2560504T3 (es) 2016-02-19
WO2007053031A1 (fr) 2007-05-10
NO20055118D0 (no) 2005-11-01
US20080260514A1 (en) 2008-10-23
CN102943743B (zh) 2014-10-15
PL1952017T3 (pl) 2016-04-29
EP1952017B1 (fr) 2015-12-09
EP1952017A4 (fr) 2012-05-02
US8186949B2 (en) 2012-05-29
CN102943743A (zh) 2013-02-27
BRPI0618151A2 (pt) 2012-02-28
CA2627148C (fr) 2012-08-07
EP1952017A1 (fr) 2008-08-06
NO20055118L (no) 2007-05-02
CN101300422A (zh) 2008-11-05
BRPI0618151A8 (pt) 2018-04-03
CA2627148A1 (fr) 2007-05-10
NO325856B1 (no) 2008-08-04

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