DK2108825T3 - System og fremgangsmåde til at reducere rotorbelastninger i en vindmølle ved detektion af vingepitchsvigt og tab af modmoment - Google Patents

System og fremgangsmåde til at reducere rotorbelastninger i en vindmølle ved detektion af vingepitchsvigt og tab af modmoment Download PDF

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Publication number
DK2108825T3
DK2108825T3 DK09156245.4T DK09156245T DK2108825T3 DK 2108825 T3 DK2108825 T3 DK 2108825T3 DK 09156245 T DK09156245 T DK 09156245T DK 2108825 T3 DK2108825 T3 DK 2108825T3
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DK
Denmark
Prior art keywords
rotor
pitch
wind turbine
brake
blades
Prior art date
Application number
DK09156245.4T
Other languages
English (en)
Inventor
Leonardo Cesar Kammer
Axel Braicks
Hubert Oing
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Application granted granted Critical
Publication of DK2108825T3 publication Critical patent/DK2108825T3/da

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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
    • F03D7/0264—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor for stopping; controlling in emergency situations
    • 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
    • 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
    • F03D7/0228—Adjusting blade pitch of the blade tips only
    • 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
    • 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
    • F03D7/04—Automatic control; Regulation
    • F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
    • F03D7/043—Automatic control; Regulation by means of an electrical or electronic controller characterised by the type of control logic
    • 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
    • F05B2260/80—Diagnostics
    • 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
    • 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
    • F05B2270/107—Purpose of the control system to cope with emergencies
    • 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
    • F05B2270/337—Electrical grid status parameters, e.g. voltage, frequency or power demand
    • 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
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier

Claims (7)

1. Fremgangsmåde til at bremse en vindmølle (10) som inkluderer mindst to rotorvinger (24) koblet til en rotor (18), hvilken fremgangsmåde omfatter trinnene: at detektere (S4.1) et tab af modmoment; at styre (S4.2) en pitchvinkel af den mindst ene rotorvinge (24) som reaktion på det detekterede tab af modmoment; at detektere (S4.3) et vingepitchsvigt i mindst en af rotorvingerne (24); at variere (S4.4) en hastighed af ændring af pitchvinkel af alle fungerende rotorvinger (24) som reaktion på det detekterede vingepitchsvigt i mindst en af rotorvingerne (24); at reducere (S4.6) en generator-/rotoroverhastighed-tærskelværdi med en forudbestemt mængde som reaktion på det detekterede vingepitchsvigt i mindst en af rotorvingerne (24); at bestemme (S4.5) hvorvidt en generator-/rotorhastighed er over den mindskede generator-/rotoroverhastighed-tærskelværdi, og hvis ikke at fortsætte med at pitche vingerne (24) til en kantstillet position eller, hvis generator-/rotorhastigheden er over den mindskede generator-/rotoroverhastighed-tærskelværdi, at påføre en bremse (33) til at gøre rotoren (18) langsommere indtil generatorhastigheden er under en bremsefrigivelse-tærskelværdi.
2. Fremgangsmåde ifølge krav 1, hvor at variere hastigheden af ændring af pitchvinkel af alle fungerende rotorvinger (24) omfattende at ændre pitchvinklen ved en første hastighed og derefter at ændre pitchvinklen ved en anden hastighed som er forskellig fra den første hastighed.
3. Fremgangsmåde ifølge et hvilket som helst foregående krav, hvor at variere hastigheden af ændring af pitchvinkel af alle fungerende rotorvinger (24) omfatter at variere hastigheden af ændring af pitchvinklen baseret på mindst en af et designparameter af en komponent af vindmøllen (10) og et målt parameter af en komponent af vindmøllen (10).
4. Fremgangsmåde ifølge et hvilket som helst foregående krav, hvor bremsen (33) omfatter en hydraulisk parkeringsbremse, en elektromekanisk bremse, en centrifugalbremse, en hvirvelstrømsbremse (bremse), eller en magnetisk bremse.
5. Fremgangsmåde ifølge et hvilket som helst foregående krav, hvor vindmøllen (10) er koblet til et elforsyningsnet, og hvor tabet af modmoment omfatter en netafvigelse i elforsyningsnettet.
6. Vindmøllesystem (10) konfigureret til at blive koblet til et elnet, omfattende: en rotor (18) mindst to rotorvinger (24); en bremse (33) koblet til rotoren (18); en vingepitchaktuator (38); et anemometer (34) og en eller flere sensorer (35); og en processor (42) koblet til vingepitchaktuatoren (38) og til anemometeret og den ene eller flere sensorer, til at detektere en netafvigelse i elnettet og et vingepitchsvigt i de mindst to rotorvinger (24) og til at implementere fremgangsmåden ifølge et hvilket som helst foregående krav.
7. Vindmøllesystem (10) ifølge krav 6, hvor processoren (42) er konfigureret til at variere hastigheden af ændring af pitchvinkel af alle fungerende vinger (24) ved en første hastighed og derefter at ændre pitchvinklen ved en anden hastighed som er forskellig fra den første hastighed.
DK09156245.4T 2008-04-01 2009-03-26 System og fremgangsmåde til at reducere rotorbelastninger i en vindmølle ved detektion af vingepitchsvigt og tab af modmoment DK2108825T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12/060,833 US7944067B2 (en) 2008-04-01 2008-04-01 System and method for reducing rotor loads in a wind turbine upon detection of blade-pitch failure and loss of counter-torque

Publications (1)

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DK2108825T3 true DK2108825T3 (da) 2016-08-01

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US (1) US7944067B2 (da)
EP (1) EP2108825B1 (da)
CN (1) CN101550908B (da)
DK (1) DK2108825T3 (da)

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Publication number Publication date
EP2108825A3 (en) 2012-01-25
EP2108825B1 (en) 2016-06-01
CN101550908B (zh) 2014-12-31
US20090243295A1 (en) 2009-10-01
US7944067B2 (en) 2011-05-17
CN101550908A (zh) 2009-10-07
EP2108825A2 (en) 2009-10-14

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