WO2015128874A3 - An aerodynamic speed control system for wind turbine - Google Patents

An aerodynamic speed control system for wind turbine Download PDF

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Publication number
WO2015128874A3
WO2015128874A3 PCT/IN2015/000090 IN2015000090W WO2015128874A3 WO 2015128874 A3 WO2015128874 A3 WO 2015128874A3 IN 2015000090 W IN2015000090 W IN 2015000090W WO 2015128874 A3 WO2015128874 A3 WO 2015128874A3
Authority
WO
WIPO (PCT)
Prior art keywords
speed
turbine
speed control
wind turbine
control
Prior art date
Application number
PCT/IN2015/000090
Other languages
French (fr)
Other versions
WO2015128874A2 (en
Inventor
Rajagopal Raghunathan VALAGAM
Original Assignee
Valagam 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 Valagam Rajagopal Raghunathan filed Critical Valagam Rajagopal Raghunathan
Publication of WO2015128874A2 publication Critical patent/WO2015128874A2/en
Publication of WO2015128874A3 publication Critical patent/WO2015128874A3/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
    • 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
    • F05B2260/77—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
    • Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction

Abstract

The present invention relates to an aerodynamic speed control system (shown in fig 1) for controlling the speed of the wind turbine spontaneously. The system achieves speed control by means of mechanical and electronic configurations. The mechanical configuration controls the turbine speed by enabling aerodynamic braking with respect to centrifugal force however without additional power supply. The electronic configuration is act as a backup system to perform the task of centrifugal force and also control the speed of the turbine in different conditions like grid failure, stopping of turbine at required condition and unavailability of power. Further the electronic configuration is controlled by a control means with respect to sensing means (shown in fig 4a&4b) which can sense the turbine speed as well as pitching angle.
PCT/IN2015/000090 2014-02-25 2015-02-17 An aerodynamic speed control system for wind turbine WO2015128874A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN946/CHE/2014 2014-02-25
IN946CH2014 2014-02-25

Publications (2)

Publication Number Publication Date
WO2015128874A2 WO2015128874A2 (en) 2015-09-03
WO2015128874A3 true WO2015128874A3 (en) 2015-12-10

Family

ID=54009731

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2015/000090 WO2015128874A2 (en) 2014-02-25 2015-02-17 An aerodynamic speed control system for wind turbine

Country Status (1)

Country Link
WO (1) WO2015128874A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4204805A (en) * 1978-03-28 1980-05-27 Bolie Victor W Vertical axis wind turbine
CN101943112B (en) * 2010-09-13 2012-07-25 青海风发科技发展有限公司 Wind wheel device of vertical axis wind turbine
US8232664B2 (en) * 2008-08-25 2012-07-31 Mark R. Stroup Vertical axis wind turbine
WO2014002118A1 (en) * 2012-06-29 2014-01-03 Valagam Rajagopal Raghunathan Vertical axis wind turbine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4204805A (en) * 1978-03-28 1980-05-27 Bolie Victor W Vertical axis wind turbine
US8232664B2 (en) * 2008-08-25 2012-07-31 Mark R. Stroup Vertical axis wind turbine
CN101943112B (en) * 2010-09-13 2012-07-25 青海风发科技发展有限公司 Wind wheel device of vertical axis wind turbine
WO2014002118A1 (en) * 2012-06-29 2014-01-03 Valagam Rajagopal Raghunathan Vertical axis wind turbine

Also Published As

Publication number Publication date
WO2015128874A2 (en) 2015-09-03

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