BRPI0400041A - Variable pitch system for wind turbine blades - Google Patents

Variable pitch system for wind turbine blades

Info

Publication number
BRPI0400041A
BRPI0400041A BR0400041-2A BRPI0400041A BRPI0400041A BR PI0400041 A BRPI0400041 A BR PI0400041A BR PI0400041 A BRPI0400041 A BR PI0400041A BR PI0400041 A BRPI0400041 A BR PI0400041A
Authority
BR
Brazil
Prior art keywords
wind turbine
turbine blades
variable pitch
pitch system
control
Prior art date
Application number
BR0400041-2A
Other languages
Portuguese (pt)
Inventor
Luiz Cezar Sampaio Pereira
Original Assignee
Luiz Cezar Sampaio Pereira
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 Luiz Cezar Sampaio Pereira filed Critical Luiz Cezar Sampaio Pereira
Priority to BRPI0400041-2A priority Critical patent/BRPI0400041B1/en
Priority to PCT/BR2005/000003 priority patent/WO2005068833A2/en
Publication of BRPI0400041A publication Critical patent/BRPI0400041A/en
Publication of BRPI0400041B1 publication Critical patent/BRPI0400041B1/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
    • 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
    • F03D1/0658—Arrangements for fixing wind-engaging parts to a 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
    • 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
    • F03D7/0236—Adjusting aerodynamic properties of the blades by changing the active surface of the wind engaging parts, e.g. reefing or furling
    • 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
    • F05B2250/20—Geometry three-dimensional
    • F05B2250/23—Geometry three-dimensional prismatic
    • F05B2250/232—Geometry three-dimensional prismatic conical
    • 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
    • F05B2250/30—Arrangement of components
    • F05B2250/31—Arrangement of components according to the direction of their main axis or their axis of rotation
    • F05B2250/314—Arrangement of components according to the direction of their main axis or their axis of rotation the axes being inclined in relation to each other
    • 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
    • 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
    • F05B2260/78—Adjusting of angle of incidence or attack of rotating blades the adjusting mechanism driven or triggered by aerodynamic 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
    • 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

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

"SISTEMA DE PASSO VARIáVEL PARA PáS DE AEROGERADOR". A inovação ora proposta descreve um sistema que permite controlar o ângulo de passo da pá de um aerogerador de forma a controlar sua velocidade rotacional e evitar que limites de segurança sejam ultrapassados em velocidades extremas do vento."VARIABLE STEP SYSTEM FOR WINDOWS" The proposed innovation describes a system that allows you to control the pitch angle of a wind turbine blade to control its rotational speed and to prevent safety limits from being exceeded at extreme wind speeds.

BRPI0400041-2A 2004-01-14 2004-01-14 variable pitch system for wind turbine blades. BRPI0400041B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BRPI0400041-2A BRPI0400041B1 (en) 2004-01-14 2004-01-14 variable pitch system for wind turbine blades.
PCT/BR2005/000003 WO2005068833A2 (en) 2004-01-14 2005-01-12 Wind turbine with variable pitch blades

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BRPI0400041-2A BRPI0400041B1 (en) 2004-01-14 2004-01-14 variable pitch system for wind turbine blades.

Publications (2)

Publication Number Publication Date
BRPI0400041A true BRPI0400041A (en) 2005-09-13
BRPI0400041B1 BRPI0400041B1 (en) 2010-05-18

Family

ID=34754166

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0400041-2A BRPI0400041B1 (en) 2004-01-14 2004-01-14 variable pitch system for wind turbine blades.

Country Status (2)

Country Link
BR (1) BRPI0400041B1 (en)
WO (1) WO2005068833A2 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2876423B1 (en) * 2004-10-08 2009-01-09 Bourriaud Michel Edouard Raymond WINDMILL SAILS
DK176552B1 (en) 2005-12-29 2008-08-04 Lm Glasfiber As Variable speed nav
GB2436599A (en) * 2006-03-30 2007-10-03 Boost Energy Systems Ltd Wind turbine blade furling system
US7365448B2 (en) 2006-08-17 2008-04-29 X Blade Systems Lp Wind driven power generator
US7911076B2 (en) 2006-08-17 2011-03-22 Broadstar Developments, Lp Wind driven power generator with moveable cam
US8267651B2 (en) 2006-11-27 2012-09-18 Lm Glasfiber A/S Pitch of blades on a wind power plant
FR2926335A1 (en) * 2008-01-16 2009-07-17 Pascal Gauthiez Wind energy capturing device for e.g. recharging battery in cycle, has rotor with horizontal axle and blades comprising selected and oriented bird feathers associated to brushless generator, where generator has brushless motor
FR2926609B1 (en) * 2008-01-18 2010-05-07 Pascal Gauthiez NEW TYPE OF ROTOR WITH AUTOMATICALLY ROLLABLE SAILS FOR HORIZONTAL AXIS AEROGENERATOR OF MEDIUM POWER
IT1394477B1 (en) * 2009-05-26 2012-07-05 Tozzi Nord S R L SAFETY SYSTEM FOR WIND TURBINES AND WIND TURBINE EQUIPPED WITH THIS SYSTEM
DE102013008218A1 (en) * 2013-05-14 2014-11-20 Erhard Frase Automatic mechanical rotor blade angle adjustment with overspeed protection for small wind turbines.
JP2016044632A (en) * 2014-08-26 2016-04-04 十郎 佐原 Rotational speed control device of wind power generator
CN110030156A (en) * 2017-09-25 2019-07-19 青岛兰道尔空气动力工程有限公司 Automatic pitch-controlled system with counter weight device
CN110374801B (en) * 2019-07-02 2024-04-05 中国大唐集团新能源科学技术研究院有限公司 Blade root independent variable pitch device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2516576A (en) * 1947-01-04 1950-07-25 Charles R Jacobs Self-governing wind-driven propeller
DE906440C (en) * 1948-10-02 1954-03-15 Richard Bauer Fast running wind engine
US4310284A (en) * 1979-08-27 1982-01-12 Randolph Arthur J Automatically controlled wind propeller and tower shadow eliminator
US4439108A (en) * 1982-06-08 1984-03-27 Richard Will Windmill having centrifically feathered rotors to control rotor speed
GB9003591D0 (en) * 1990-02-16 1990-04-11 Proven Eng Prod Single windmill blade
US5584655A (en) * 1994-12-21 1996-12-17 The Wind Turbine Company Rotor device and control for wind turbine

Also Published As

Publication number Publication date
BRPI0400041B1 (en) 2010-05-18
WO2005068833A3 (en) 2005-08-25
WO2005068833A2 (en) 2005-07-28
WO2005068833B1 (en) 2005-10-27

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Legal Events

Date Code Title Description
B03A Publication of an application: publication of a patent application or of a certificate of addition of invention
B65X Notification of requirement for priority examination of patent application
B65Y Grant of priority examination of the patent application (request complies with dec. 132/06 of 20061117)
B09A Decision: intention to grant
B16A Patent or certificate of addition of invention granted

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 14/01/2004, OBSERVADAS AS CONDICOES LEGAIS.

B15K Others concerning applications: alteration of classification

Ipc: F03D 7/02 (2006.01), F03D 1/06 (2006.01)

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 16A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2549 DE 12-11-2019 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.