WO2009130500A3 - Energy output limiter for wind turbine rotor(s) - Google Patents

Energy output limiter for wind turbine rotor(s) Download PDF

Info

Publication number
WO2009130500A3
WO2009130500A3 PCT/GB2009/050398 GB2009050398W WO2009130500A3 WO 2009130500 A3 WO2009130500 A3 WO 2009130500A3 GB 2009050398 W GB2009050398 W GB 2009050398W WO 2009130500 A3 WO2009130500 A3 WO 2009130500A3
Authority
WO
WIPO (PCT)
Prior art keywords
wind turbine
energy
rotor
speed
dissipate
Prior art date
Application number
PCT/GB2009/050398
Other languages
French (fr)
Other versions
WO2009130500A2 (en
Inventor
Barry Robert Marshall
Original Assignee
Brm Power 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 Brm Power Limited filed Critical Brm Power Limited
Publication of WO2009130500A2 publication Critical patent/WO2009130500A2/en
Publication of WO2009130500A3 publication Critical patent/WO2009130500A3/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
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/0608—Rotors characterised by their aerodynamic shape
    • F03D1/0633—Rotors characterised by their aerodynamic shape of the blades
    • F03D1/0641—Rotors characterised by their aerodynamic shape of the blades of the section profile of the blades, i.e. aerofoil profile
    • 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
    • F03D1/0608—Rotors characterised by their aerodynamic shape
    • 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
    • F03D7/0244—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor for braking
    • F03D7/0252—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor for braking with aerodynamic drag devices on the 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
    • F05B2240/20—Rotors
    • F05B2240/21—Rotors for wind turbines
    • F05B2240/221—Rotors for wind turbines with horizontal axis
    • 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
    • F05B2240/20—Rotors
    • F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • 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
    • F05B2240/20—Rotors
    • F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05B2240/301—Cross-section characteristics
    • 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
    • F05B2240/91—Mounting on supporting structures or systems on a stationary structure
    • F05B2240/913—Mounting on supporting structures or systems on a stationary structure on a mast
    • 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
    • F05B2260/74—Adjusting of angle of incidence or attack of rotating blades by turning around an axis perpendicular the rotor centre line
    • 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
    • F05B2260/75—Adjusting of angle of incidence or attack of rotating blades the adjusting mechanism not using auxiliary power sources, e.g. servos
    • 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
    • F05B2260/90—Braking
    • F05B2260/901—Braking using aerodynamic forces, i.e. lift or drag
    • 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
    • F05B2260/90—Braking
    • F05B2260/901—Braking using aerodynamic forces, i.e. lift or drag
    • F05B2260/9011—Braking using aerodynamic forces, i.e. lift or drag of the tips of rotor 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
    • F05B2270/00—Control
    • F05B2270/10—Purpose of the control system
    • F05B2270/101—Purpose of the control system to control rotational speed (n)
    • F05B2270/1011—Purpose of the control system to control rotational speed (n) to prevent overspeed
    • 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
    • Y02E10/728—Onshore wind turbines

Abstract

A horizontal axis wind turbine blade configuration is provided which is adapted to dissipate the energy which would otherwise exceed the capacity of the energy conversion system, when the wind speed and/or the wind turbine rotational speed exceed(s) levels established by the particular design. Aerofoil section(s) (A) connected to a HAWT rotor hub dissipate some of, and under severe operating conditions can dissipate virtually all of, the energy that the conventional wind turbine blade(s) or blade section(s) extract from the wind. The aerofoil Section(s) (A) are configured to use aerodynamic lift in a similar manner to a propeller or lift rotor as the principle energy dissipation mechanism when the rotor speed exceeds a certain value for a particular pertaining wind speed, that rotor speed being an outcome of the overall design.
PCT/GB2009/050398 2008-04-21 2009-04-21 Energy output limiter for wind turbine rotor(s) WO2009130500A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0807297A GB2459453B (en) 2008-04-21 2008-04-21 Energy output limiter for wind turbine rotor(s)
GB0807297.7 2008-04-21

Publications (2)

Publication Number Publication Date
WO2009130500A2 WO2009130500A2 (en) 2009-10-29
WO2009130500A3 true WO2009130500A3 (en) 2010-03-11

Family

ID=39494030

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2009/050398 WO2009130500A2 (en) 2008-04-21 2009-04-21 Energy output limiter for wind turbine rotor(s)

Country Status (2)

Country Link
GB (1) GB2459453B (en)
WO (1) WO2009130500A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009046586B4 (en) * 2009-11-10 2012-02-23 Nordex Energy Gmbh Blade tip for a rotor blade of a wind turbine and method for mounting the blade tip to a rotor blade
GB2476509A (en) * 2009-12-24 2011-06-29 Rolls Royce Plc Turbine with reduced thrust coefficient at excessive speed
EP2366892B1 (en) * 2010-03-18 2014-07-30 Nordex Energy GmbH Wind turbine rotor blade
WO2012110486A1 (en) * 2011-02-14 2012-08-23 Se Blades Technology B.V. A blade for a wind turbine and a production method therefore
FR2996523B1 (en) * 2012-10-05 2015-05-29 Guillaume Emmanuel Marie Nicolle ROTATING SPEED CONTROL WING FOR PARACHUTAGE
CN106401866B (en) * 2016-08-22 2023-06-16 内蒙古工业大学 Blade type wind turbine blade

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2741893A1 (en) * 1977-09-17 1979-03-29 Friedrich Cramer Blade for wind turbine generator - has profiled tooth with air slots to give flow with high aerodynamic efficiency
DE4428731A1 (en) * 1994-08-15 1996-02-22 Infan Gmbh Ingenieurgesellscha Variable length rotor blade for wind power systems
WO2002051730A2 (en) * 2000-12-23 2002-07-04 Aloys Wobben Rotor blade for a wind power installation
DE10152449A1 (en) * 2001-10-26 2003-05-15 Aloys Wobben Rotor blade for wind turbine is fitted with system for altering its surface, e.g. pivoting flap or section of rotor which can be wound up on to core

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4423333A (en) * 1982-02-02 1983-12-27 Rossman Wendell E Horizontal axis wind energy conversion system with aerodynamic blade pitch control
JPS58200083A (en) * 1982-05-18 1983-11-21 Shin Meiwa Ind Co Ltd Propeller type wind turbine with air stabilizing vane
SE442659B (en) * 1984-01-13 1986-01-20 Stubinen Utvecklings Ab WIND rotor element
US4571156A (en) * 1984-03-05 1986-02-18 D. C. Research, Inc. Air foil with trailing spoiler
DE4304577A1 (en) * 1993-02-16 1994-08-25 Wsewolod Wasiljew New design of the wind-driven power generator
AU5061200A (en) * 1999-06-07 2000-12-28 Bonus Energy A/S Method on regulating the air flow around the windmill wing and device for use insuch method
JP2004183640A (en) * 2002-12-04 2004-07-02 Tokiwa Kogyo Kk Wind mill blade having flap
US6940185B2 (en) * 2003-04-10 2005-09-06 Advantek Llc Advanced aerodynamic control system for a high output wind turbine
DE102004007487A1 (en) * 2004-02-13 2005-09-01 Aloys Wobben Rotor blade of a wind turbine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2741893A1 (en) * 1977-09-17 1979-03-29 Friedrich Cramer Blade for wind turbine generator - has profiled tooth with air slots to give flow with high aerodynamic efficiency
DE4428731A1 (en) * 1994-08-15 1996-02-22 Infan Gmbh Ingenieurgesellscha Variable length rotor blade for wind power systems
WO2002051730A2 (en) * 2000-12-23 2002-07-04 Aloys Wobben Rotor blade for a wind power installation
DE10152449A1 (en) * 2001-10-26 2003-05-15 Aloys Wobben Rotor blade for wind turbine is fitted with system for altering its surface, e.g. pivoting flap or section of rotor which can be wound up on to core

Also Published As

Publication number Publication date
GB0807297D0 (en) 2008-05-28
GB2459453B (en) 2011-06-08
GB2459453A (en) 2009-10-28
WO2009130500A2 (en) 2009-10-29

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