WO2012032547A3 - Mechanism for blade pitch control for wind turbine - Google Patents

Mechanism for blade pitch control for wind turbine Download PDF

Info

Publication number
WO2012032547A3
WO2012032547A3 PCT/IN2011/000617 IN2011000617W WO2012032547A3 WO 2012032547 A3 WO2012032547 A3 WO 2012032547A3 IN 2011000617 W IN2011000617 W IN 2011000617W WO 2012032547 A3 WO2012032547 A3 WO 2012032547A3
Authority
WO
WIPO (PCT)
Prior art keywords
coupler arrangement
arrangement
arms
motor
turbine
Prior art date
Application number
PCT/IN2011/000617
Other languages
French (fr)
Other versions
WO2012032547A2 (en
Inventor
Raghunathan V.Rajagopal
Original Assignee
V Rajagopal Raghunathan
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 V Rajagopal Raghunathan filed Critical V Rajagopal Raghunathan
Publication of WO2012032547A2 publication Critical patent/WO2012032547A2/en
Publication of WO2012032547A3 publication Critical patent/WO2012032547A3/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 
    • F03D7/06—Controlling wind motors  the wind motors having rotation axis substantially perpendicular to the air flow entering the rotor
    • 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
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/06—Rotors
    • F03D3/062—Rotors characterised by their construction elements
    • F03D3/066—Rotors characterised by their construction elements the wind engaging parts being movable relative to the rotor
    • F03D3/067—Cyclic movements
    • F03D3/068—Cyclic movements mechanically controlled by the rotor structure
    • 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
    • F05B2240/211—Rotors for wind turbines with vertical axis
    • F05B2240/214—Rotors for wind turbines with vertical axis of the Musgrove or "H"-type
    • 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
    • F05B2260/72—Adjusting of angle of incidence or attack of rotating blades by turning around an axis parallel to 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
    • F05B2260/77—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
    • F05B2260/85—Starting
    • 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
    • Y02E10/74—Wind turbines with rotation axis perpendicular to the 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)
  • Wind Motors (AREA)

Abstract

According to the present invention for controlling the turbine, there is provided as system comprises electromechanical means of coupler arrangement driven by motor shaft with pretension spring installed between arms of the coupler arrangement. During start mode, the spacer engages between arms of the coupler arrangement and until sustainable speed, the spacer is driven outwards from the arrangement (running mode). Once rotational speed exceeds cut-off, torque is not transmitted from airfoil blades to couplers; the pretension spring elongates results angular displacement of coupler1(6) which displaces push rod linearly and airfoil blades are brought to feathered condition which stops turbine by change in angle of attack. As additional embodiment to this invention, the position of air foil blade can be controlled by triggering effect of motor in which the pushrod gets activated by rotation of spider airfoil blade while motor becomes generator or dynamic brake (or) while it loses its load.
PCT/IN2011/000617 2010-09-10 2011-09-09 Mechanism for blade pitch control for wind turbine WO2012032547A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN2000CH2010 2010-09-10
IN2000/CHE/2010 2010-09-10

Publications (2)

Publication Number Publication Date
WO2012032547A2 WO2012032547A2 (en) 2012-03-15
WO2012032547A3 true WO2012032547A3 (en) 2012-05-18

Family

ID=45094049

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2011/000617 WO2012032547A2 (en) 2010-09-10 2011-09-09 Mechanism for blade pitch control for wind turbine

Country Status (1)

Country Link
WO (1) WO2012032547A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2997736A1 (en) * 2012-11-02 2014-05-09 Pascal Epineau Vertical axis wind mill e.g. Darrieus wind mill, has blades diametrically opposite relative to rotor axis and connected together by connection unit, where unit is extended, so that pivoting of one of blades causes pivoting of another blade
CN103266989B (en) * 2013-05-29 2015-05-27 上海跃风新能源科技有限公司 Wind-driven generator automatic protection device
EP2957768A1 (en) * 2014-06-16 2015-12-23 Cockerill Maintenance & Ingenierie S.A. Improved vertical axis wind turbine
FR3041710B1 (en) * 2015-09-24 2017-12-01 Nenuphar METHOD FOR STOPPING A VERTICAL AXIS WIND MOLD AND A WINDBREAK WITH A CORRESPONDING VERTICAL AXIS
TWI561730B (en) * 2016-05-18 2016-12-11 Inst Nuclear Energy Res Atomic Energy Council Vertical-axis wind turbine having device for changing blade angle
CN113958451A (en) * 2021-10-29 2022-01-21 陈曦 Variable-pitch adjustment type vertical axis wind generating set
JP7492770B2 (en) 2022-11-08 2024-05-30 三鷹光器株式会社 Over-rotation prevention structure for vertical axis wind turbines

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4299537A (en) * 1979-06-19 1981-11-10 Evans Frederick C Interlinked variable-pitch blades for windmills and turbines
US4483657A (en) * 1982-09-29 1984-11-20 Kaiser Heinz W Wind turbine rotor assembly
US6394745B1 (en) * 2000-05-26 2002-05-28 Saeed Quraeshi Straight-bladed vertical axis wind turbine
DE10251388A1 (en) * 2002-11-01 2004-05-19 Hinrich Storch Rotor for a wind-power installation has a main body rotating on bearings around an axis of rotation driven by wind power with drive surfaces set with a clearance
US20080258469A1 (en) * 2006-08-17 2008-10-23 X Blade Systems, Lp Wind driven power generator with moveable cam

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4408958A (en) 1980-12-23 1983-10-11 The Bendix Corporation Wind turbine blade
US4427897A (en) 1982-01-18 1984-01-24 John Midyette, III Fixed pitch wind turbine system utilizing aerodynamic stall
US5506453A (en) 1990-02-09 1996-04-09 Mccombs; John C. Machine for converting wind energy to electrical energy
DE69913973D1 (en) 1998-08-13 2004-02-05 Neg Micon As Randers CONTROL DEVICE FOR ADJUSTING AND STOPPING THE BLADES OF A WIND TURBINE

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4299537A (en) * 1979-06-19 1981-11-10 Evans Frederick C Interlinked variable-pitch blades for windmills and turbines
US4483657A (en) * 1982-09-29 1984-11-20 Kaiser Heinz W Wind turbine rotor assembly
US6394745B1 (en) * 2000-05-26 2002-05-28 Saeed Quraeshi Straight-bladed vertical axis wind turbine
DE10251388A1 (en) * 2002-11-01 2004-05-19 Hinrich Storch Rotor for a wind-power installation has a main body rotating on bearings around an axis of rotation driven by wind power with drive surfaces set with a clearance
US20080258469A1 (en) * 2006-08-17 2008-10-23 X Blade Systems, Lp Wind driven power generator with moveable cam

Also Published As

Publication number Publication date
WO2012032547A2 (en) 2012-03-15

Similar Documents

Publication Publication Date Title
WO2012032547A3 (en) Mechanism for blade pitch control for wind turbine
EP2080902A3 (en) Speed controlled pitch system
WO2012164387A4 (en) Wind turbine control system having a thrust sensor
EP2159415B1 (en) Method and apparatus for controlling the yaw angle of a wind turbine
CA2822976C (en) System and method for braking a wind turbine rotor at an overspeed condition
EP2108825A3 (en) System and method for reducing rotor loads in a wind turbine upon detection of blade-pitch failure and loss of counter-torque
WO2013027127A3 (en) Systems for minimizing the yaw torque needed to control power output by yawing, for wind turbines with two hinged teetering blades
JP2009287564A5 (en)
BRPI0908752A2 (en) Aircraft turbomachine counter-rotary propeller system, Aircraft turbomachine counter-rotating propeller process and Aircraft turbomachine counter-rotary propeller piloting
WO2010103086A3 (en) Blade mounting
WO2010123636A3 (en) Method and system for controlling propulsion systems
MX2012000008A (en) Wind turbine with compensated motor torque.
WO2011035788A3 (en) Wind turbine stand still load reduction
BR112013018853A2 (en) Method of operating a wind turbine and wind turbine control system for use with a wind turbine and wind turbine
WO2011065720A3 (en) Tilting rotor blade system for a vertical wind turbine
ES2358711A1 (en) A method for stopping a wind turbine in two stages
WO2010013981A3 (en) Vertical shaft type darius windmill
EP2189646A3 (en) Variable pitch rotor arrangement in a gas turbine engine
CL2011002870A1 (en) Method to control the rotational speed of a rotor in a wind turbine, which determines the angle of orientation of the turbine in relation to the wind, change the angle of orientation to increase or reduce the rotational efficiency of the rotor; system for the control of the orientation angle.
BR112015007635A2 (en) method for operating at least one first wind turbine, wind turbine for generating electricity from wind, and wind farm
EP2003335A3 (en) Horizontal axis wind turbine
WO2010134921A8 (en) Differential pitch control to optimize co-rotating stacked rotor performance
EP2034180A3 (en) Teeter-restraint device for wind turbines
WO2008143715A3 (en) Eccentric drive control actuation system
CN103256181B (en) Centrifugal speed-regulating tail-folding yaw type wind power generator

Legal Events

Date Code Title Description
NENP Non-entry into the national phase

Ref country code: DE

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11791054

Country of ref document: EP

Kind code of ref document: A2

122 Ep: pct application non-entry in european phase

Ref document number: 11791054

Country of ref document: EP

Kind code of ref document: A2