WO2011158256A3 - Self governing pitch control mechanism in vertical axis wind turbine - Google Patents

Self governing pitch control mechanism in vertical axis wind turbine Download PDF

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Publication number
WO2011158256A3
WO2011158256A3 PCT/IN2011/000400 IN2011000400W WO2011158256A3 WO 2011158256 A3 WO2011158256 A3 WO 2011158256A3 IN 2011000400 W IN2011000400 W IN 2011000400W WO 2011158256 A3 WO2011158256 A3 WO 2011158256A3
Authority
WO
WIPO (PCT)
Prior art keywords
rotational speed
vertical axis
axis wind
wind turbine
control mechanism
Prior art date
Application number
PCT/IN2011/000400
Other languages
French (fr)
Other versions
WO2011158256A2 (en
WO2011158256A8 (en
Inventor
V. R. Raghunathan
Original Assignee
Raghunathan V R
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 Raghunathan V R filed Critical Raghunathan V R
Publication of WO2011158256A2 publication Critical patent/WO2011158256A2/en
Publication of WO2011158256A3 publication Critical patent/WO2011158256A3/en
Publication of WO2011158256A8 publication Critical patent/WO2011158256A8/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
    • F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor 
    • F03D3/06—Rotors
    • F03D3/061—Rotors characterised by their aerodynamic shape, e.g. aerofoil profiles
    • 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
    • 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
    • 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
    • F05B2270/00—Control
    • F05B2270/30—Control parameters, e.g. input parameters
    • F05B2270/327—Rotor or generator speeds
    • 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

Abstract

According to an aspect of the present invention, there is provided an apparatus and method for controlling the rotational speed of the vertical axis wind power generation system without the requirement of the mechanical brake mechanism in order to prevent the runaway condition. The vertical axis wind turbine comprises a mechanical means of spring governor preloaded with determined tension corresponding to the optimum rotational speed. The spring holds the airfoil blades firmly as long as the rotational speed falls within the determined level. The spring acts as actuator while the rotational speed crosses the optimum level by tuming the blade to a certain degree thereby varying the angle of attack of the airfoil blades. The rotational speed is then retarded and regulated within the prescribed level.
PCT/IN2011/000400 2010-06-17 2011-06-14 Self governing pitch control mechanism in vertical axis wind turbine WO2011158256A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN1685CH2010 2010-06-17
IN1685/CHE/2010 2010-06-17

Publications (3)

Publication Number Publication Date
WO2011158256A2 WO2011158256A2 (en) 2011-12-22
WO2011158256A3 true WO2011158256A3 (en) 2012-05-03
WO2011158256A8 WO2011158256A8 (en) 2012-08-09

Family

ID=44545793

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2011/000400 WO2011158256A2 (en) 2010-06-17 2011-06-14 Self governing pitch control mechanism in vertical axis wind turbine

Country Status (1)

Country Link
WO (1) WO2011158256A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2985291B1 (en) * 2011-12-30 2017-12-29 Marc Bois TORQUE LIMITING DEVICE FOR A REACTION ROTOR TURBOGENERATOR
CN103742370B (en) * 2014-01-22 2016-05-11 深圳市宝联风光热能源科技有限公司 A kind of spademan swing blade type vertical axis aerogenerator group
CN103742371B (en) * 2014-01-22 2016-05-04 深圳市宝联风光热能源科技有限公司 A kind of multilayer spademan double pendulum blade vertical-shaft wind power generating set

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4087202A (en) * 1975-07-21 1978-05-02 National Research Development Corporation Vertical axis wind turbines
GB2035468A (en) * 1978-10-11 1980-06-18 Pi Specialist Engs Ltd Vertical axis wind turbine
US4299537A (en) * 1979-06-19 1981-11-10 Evans Frederick C Interlinked variable-pitch blades for windmills and turbines
WO1982004103A1 (en) * 1981-05-15 1982-11-25 Andersson Birger Anders Wilhelm Means for limiting the rotation speed of a vertical shaft wind turbine
US4415312A (en) * 1982-03-11 1983-11-15 Wixlin, Inc. Transverse axis fluid turbine
US4430044A (en) * 1981-11-23 1984-02-07 Liljegren L Kenyon Vertical axis wind turbine
US4718821A (en) * 1986-06-04 1988-01-12 Clancy Brian D Windmill blade
US5083901A (en) * 1989-05-08 1992-01-28 Griffin Jr Ralph C Electricity generating wind turbine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2158491A1 (en) 1995-09-18 1997-03-19 William A. Yearwood Vertical axis wind turbine
JP2007255788A (en) 2006-03-23 2007-10-04 Aquas Corp Management method for heat storage cold and hot water system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4087202A (en) * 1975-07-21 1978-05-02 National Research Development Corporation Vertical axis wind turbines
GB2035468A (en) * 1978-10-11 1980-06-18 Pi Specialist Engs Ltd Vertical axis wind turbine
US4299537A (en) * 1979-06-19 1981-11-10 Evans Frederick C Interlinked variable-pitch blades for windmills and turbines
WO1982004103A1 (en) * 1981-05-15 1982-11-25 Andersson Birger Anders Wilhelm Means for limiting the rotation speed of a vertical shaft wind turbine
US4430044A (en) * 1981-11-23 1984-02-07 Liljegren L Kenyon Vertical axis wind turbine
US4415312A (en) * 1982-03-11 1983-11-15 Wixlin, Inc. Transverse axis fluid turbine
US4718821A (en) * 1986-06-04 1988-01-12 Clancy Brian D Windmill blade
US5083901A (en) * 1989-05-08 1992-01-28 Griffin Jr Ralph C Electricity generating wind turbine

Also Published As

Publication number Publication date
WO2011158256A2 (en) 2011-12-22
WO2011158256A8 (en) 2012-08-09

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