WO2010109238A3 - Automatic pitch control for hawt wind turbines - Google Patents

Automatic pitch control for hawt wind turbines Download PDF

Info

Publication number
WO2010109238A3
WO2010109238A3 PCT/GB2010/050500 GB2010050500W WO2010109238A3 WO 2010109238 A3 WO2010109238 A3 WO 2010109238A3 GB 2010050500 W GB2010050500 W GB 2010050500W WO 2010109238 A3 WO2010109238 A3 WO 2010109238A3
Authority
WO
WIPO (PCT)
Prior art keywords
rpm
lulls
gusts
limit
wind turbines
Prior art date
Application number
PCT/GB2010/050500
Other languages
French (fr)
Other versions
WO2010109238A2 (en
Inventor
Ralph-Peter Bailey
Original Assignee
Kinetic Harvest Limited
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 Kinetic Harvest Limited filed Critical Kinetic Harvest Limited
Priority to US13/260,197 priority Critical patent/US20120014794A1/en
Priority to CN2010800179702A priority patent/CN102439294A/en
Priority to EP10711259A priority patent/EP2411667A2/en
Publication of WO2010109238A2 publication Critical patent/WO2010109238A2/en
Publication of WO2010109238A3 publication Critical patent/WO2010109238A3/en

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
    • F03D7/022—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
    • F03D7/022—Adjusting aerodynamic properties 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
    • 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
    • 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
    • F05B2260/77—Adjusting of angle of incidence or attack of rotating blades the adjusting mechanism driven or triggered by centrifugal forces
    • 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

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

A self setting and self powered system for adjusting the blade angles of a wind turbine such that they have a high angle of attack when parked to promote early start up, move to their ideal setting angle for normal running, can respond to gusts and lulls with appropriate changes, and feathers the blades to limit the rpm and reduce loads in storm conditions. The system balances the thrust loads on the turbine against centripetal forces generated by masses reacting to the rpm, increasing the blade pitch with gusts to increase torque and hence rotational acceleration and reducing blade pitch in lulls to conserve rotational momentum, and uses springs to establish the starting position and the rpm limit appropriate for the generator mechanism.
PCT/GB2010/050500 2009-03-24 2010-03-24 Automatic pitch control for hawt wind turbines WO2010109238A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US13/260,197 US20120014794A1 (en) 2009-03-24 2010-03-24 Automatic pitch control for horizontal axis wind turbines
CN2010800179702A CN102439294A (en) 2009-03-24 2010-03-24 Automatic pitch control for hawt wind turbines
EP10711259A EP2411667A2 (en) 2009-03-24 2010-03-24 Automatic pitch control for hawt wind turbines

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0904921.4 2009-03-24
GB0904921A GB2471060A (en) 2009-03-24 2009-03-24 Automatic pitch control for horizontal axis wind turbines

Publications (2)

Publication Number Publication Date
WO2010109238A2 WO2010109238A2 (en) 2010-09-30
WO2010109238A3 true WO2010109238A3 (en) 2011-04-28

Family

ID=40639967

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2010/050500 WO2010109238A2 (en) 2009-03-24 2010-03-24 Automatic pitch control for hawt wind turbines

Country Status (5)

Country Link
US (1) US20120014794A1 (en)
EP (1) EP2411667A2 (en)
CN (1) CN102439294A (en)
GB (1) GB2471060A (en)
WO (1) WO2010109238A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8408867B2 (en) * 2008-01-10 2013-04-02 Jonathan C. Ricker Multi directional augmenter and diffuser
KR101330016B1 (en) * 2013-09-30 2013-11-18 지유 주식회사 Power generation device using force of wind
US9631606B2 (en) 2014-04-14 2017-04-25 General Electric Company System and method for thrust-speed control of a wind turbine
CN103982375A (en) * 2014-05-26 2014-08-13 陈鹏 Wind-powered power fan
CN104989599A (en) * 2015-07-31 2015-10-21 陈强生 Flywheel type wind driven generator
US10634121B2 (en) 2017-06-15 2020-04-28 General Electric Company Variable rated speed control in partial load operation of a wind turbine
EP3418760B1 (en) * 2017-06-22 2020-08-26 IHP GmbH - Innovations for High Performance Microelectronics / Leibniz-Institut für innovative Mikroelektronik Method and system for oversampling a waveform with variable oversampling factor
CN109667726B (en) * 2017-10-17 2020-09-25 新疆金风科技股份有限公司 Wind turbine rotating speed measuring structure and device of wind turbine generator and wind turbine generator set
CN114851247B (en) * 2022-05-17 2024-01-12 湖北省天一智能科技有限公司 Flexible compensator with centripetal force structure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2491556A1 (en) * 1980-10-06 1982-04-09 Creuzet Yvon Wind powered electricity generator - has crank mechanism linking fixed and mobile parts of hub and varying angle of vanes according to wind speed
FR2876752A1 (en) * 2004-10-19 2006-04-21 Michel Bourriaud Variable pitch mechanical device for wind turbine, has sliding hub carrying blade shanks including flange and toothed sector that is actuated by rack integrated to guide pin held by fixed hub, and centrifugal regulators connecting two hubs
WO2008153423A2 (en) * 2007-06-12 2008-12-18 Stormrider Holdings Limited Mproved wind turbine

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2237191A (en) * 1931-05-19 1941-04-01 Bendix Aviat Corp Propeller
US2666149A (en) * 1947-05-01 1954-01-12 Fumagalli Charles Electric generator with variable propeller and governing means therefor
GB730060A (en) * 1951-12-21 1955-05-18 Allgaier Werkzeugbau G M B H Improvements in wind power plants
US4257740A (en) * 1979-01-15 1981-03-24 Duez Wayne G Speed governing hub for windmill
US4411596A (en) * 1980-03-25 1983-10-25 Sundstrand Corporation Ram air turbine control system
NL8104118A (en) * 1981-09-07 1983-04-05 Frans De Hoo En Nicolaas Schuu Windmill with variable pitch blades - has coaxial governor rotor with centrifugal weights and sliding sleeve
US4743163A (en) * 1985-11-22 1988-05-10 Sundstrand Corporation Ram air turbine control system
DE69107430T2 (en) * 1990-12-20 1995-09-28 Honda Motor Co Ltd Angle adjustment system of an air screw.
EP1478849B1 (en) * 2002-02-25 2007-07-18 Iskra Wind Turbines Ltd. Passive speed and power regulation of a wind turbine
GB2436599A (en) * 2006-03-30 2007-10-03 Boost Energy Systems Ltd Wind turbine blade furling system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2491556A1 (en) * 1980-10-06 1982-04-09 Creuzet Yvon Wind powered electricity generator - has crank mechanism linking fixed and mobile parts of hub and varying angle of vanes according to wind speed
FR2876752A1 (en) * 2004-10-19 2006-04-21 Michel Bourriaud Variable pitch mechanical device for wind turbine, has sliding hub carrying blade shanks including flange and toothed sector that is actuated by rack integrated to guide pin held by fixed hub, and centrifugal regulators connecting two hubs
WO2008153423A2 (en) * 2007-06-12 2008-12-18 Stormrider Holdings Limited Mproved wind turbine

Also Published As

Publication number Publication date
US20120014794A1 (en) 2012-01-19
GB0904921D0 (en) 2009-05-06
GB2471060A (en) 2010-12-22
EP2411667A2 (en) 2012-02-01
CN102439294A (en) 2012-05-02
WO2010109238A2 (en) 2010-09-30

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