DK2067988T3 - Apparat og fremgangsmåde til at reducere asymmetriske rotorbelastninger ved vindmølledriftsstop - Google Patents

Apparat og fremgangsmåde til at reducere asymmetriske rotorbelastninger ved vindmølledriftsstop Download PDF

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Publication number
DK2067988T3
DK2067988T3 DK08170075.9T DK08170075T DK2067988T3 DK 2067988 T3 DK2067988 T3 DK 2067988T3 DK 08170075 T DK08170075 T DK 08170075T DK 2067988 T3 DK2067988 T3 DK 2067988T3
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DK
Denmark
Prior art keywords
blade
blades
angle
pitch
starting
Prior art date
Application number
DK08170075.9T
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English (en)
Inventor
Leonardo Cesar Kammer
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.)
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Publication date
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Application granted granted Critical
Publication of DK2067988T3 publication Critical patent/DK2067988T3/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
    • F03D7/022—Adjusting aerodynamic properties of the blades
    • F03D7/024—Adjusting aerodynamic properties of the blades of individual blades
    • 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
    • F03D7/0264—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
    • F03D7/04—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
    • F05B2270/00—Control
    • F05B2270/30—Control parameters, e.g. input parameters
    • F05B2270/328—Blade pitch angle
    • 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

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  • 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)

Claims (8)

1. Fremgangsmåde til at reducere belastning i en vindmølle (100) med en flerhed af vinger (108), idet hver vinge har en vingevinkel, idet fremgangsmåden omfatter at beregne en tidsforsinkelse for at skifte mindst en vinge (108a, 108b, 108c) hen imod en kantstilling fra en startpitchhastighed til en slutpitchhastighed efter igangsættelse af en driftsstoptilstand, hvor startpitchhastigheden er lavere end slutpitchhastigheden, kendetegnet ved at skifte den mindst en vinge (108a,108b,108c) til slutpitchhastigheden når tidsforsinkelsen er udløbet, hvor tidsforsinkelsen er beregnet med følgende ligning: Delay (i) = [Angle(i) - Min Angle] / [Final Pitch Rate - Initial Pitch Rate] hvor, Delay (i) = tidsforsinkelsen for i-th vingen til at skifte fra startpitchhastigheden til slutpitchhastigheden, Angle (i) = vingevinklen på i-th vingen efter igangsættelse af driftsstoptilstanden, Min Angle = en minimumsvinkel for flerheden af vinger efter igangsættelse af driftsstoptilstanden, Initial Pitch Rate = startpitchhastigheden under batterikraft, og Final Pitch Rate = slutpitchhastigheden under batterikraft.
2. Fremgangsmåde ifølge krav 1, hvor mindst en vinge (108a, 108b, 108c) af flerheden af vinger (108) med en minimumsvingevinkel pitcher hen imod kantstilling med slutpitchhastigheden indtil alle de andre vinger af flerhed af vinger (108) har opnået omtrent en identisk vingevinkel.
3. Fremgangsmåde ifølge et hvilket som helst af de foregående krav, hvor mindst en vinge (108a, 108b, 108c) af flerheden af vinger (108) med en maksimumvingevinkel pitcher hen imod kantstilling med startpitchhastigheden indtil alle de andre vinger af flerheden af vinger (108) har opnået omtrent en identisk vingevinkel.
4. Fremgangsmåde ifølge et hvilket som helst af de foregående krav, hvor mindst en vinge (108a, 108b, 108c) af flerheden af vinger (108) pitcher hen imod kantstilling med startpitchhastigheden indtil alle de andre vinger af flerheden af vinger (108) har opnået omtrent en identisk vingevinkel.
5. Vindmølle (100) omfattende en rotor (106) med en flerhed af vinger (108) og et nav (110), idet vindmøllen også omfatter et styresystem (300) konfigureret til at måle en pitchvinkel for hver vinge (108a, 108b, 108c), hvor styresystemet (300) beregner en tidsforsinkelse til at skifte mindst en vinge hen imod kantstilling fra en startpitchhastighed til en slutpitchhastighed efter igangsættelse af en driftsstoptilstand, hvor startpitchhastigheden er lavere end slutpitchhastigheden, kendetegnet ved at styresystemet (300) er operativt til at skifte den mindst ene vinge (108a, 108b, 108c) ved slutpitchhastigheden når først tidsforsinkelsen er udløbet, og hvor tidsforsinkelsen er beregnet med følgende ligning: Delay (i) - [Angle(i) - Min Angle] / [Final Pitch Rate - Initial Pitch Rate] hvor, Delay (i) = tidsforsinkelsen for i-th vingen til at skifte fra startpitchhastigheden til slutpitchhastigheden, Angle (i) = vingevinklen for i-th vingen efter igangsættelse af driftsstoptilstanden, Min Angle = en minimumsvinkel for flerheden af vinger efter igangsættelse af driftsstoptilstanden, Initial Pitch Rate = startpitchhastigheden under batterikraft, og Final Pitch Rate = slutpitchhastigheden under batterikraft.
6. Vindmølle (100) ifølge krav 5, hvor mindst en vinge (108a, 108b, 108c) af flerheden af vinger (108) med en minimumsvingevinkel pitcher hen imod kantstilling med slutpitchhastigheden indtil alle de andre vinger af flerheden af vinger (108) har opnået omtrent en identisk vingevinkel.
7. Vindmølle (100) ifølge krav 5 eller 6, hvor mindst en vinge (108a, 108b, 108c) af flerheden af vinger (108) med en maksimalvingevinkel pitcher hen imod kantstilling med startpitchhastigheden indtil alle de andre vinger af flerheden af vinger (108) har opnået omtrent en identisk vingevinkel.
8. Vindmølle (100) ifølge et hvilket som helst af kravene 5 til 7, hvor mindst en vinge (108a, 108b, 108c) af flerheden af vinger (108) pitcher hen imod kantstilling med startpitchhastigheden indtil alle de andre vinger af flerheden af vinger (108) har opnået omtrent en identisk vingevinkel.
DK08170075.9T 2007-12-06 2008-11-27 Apparat og fremgangsmåde til at reducere asymmetriske rotorbelastninger ved vindmølledriftsstop DK2067988T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/952,073 US8240990B2 (en) 2007-12-06 2007-12-06 Apparatus and method for reducing asymmetric rotor loads in wind turbines during shutdown

Publications (1)

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DK2067988T3 true DK2067988T3 (da) 2016-12-12

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US (1) US8240990B2 (da)
EP (1) EP2067988B1 (da)
CN (1) CN101493075B (da)
DK (1) DK2067988T3 (da)

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Publication number Publication date
US8240990B2 (en) 2012-08-14
CN101493075B (zh) 2013-01-23
CN101493075A (zh) 2009-07-29
EP2067988B1 (en) 2016-10-19
EP2067988A3 (en) 2015-06-24
US20090148286A1 (en) 2009-06-11
EP2067988A2 (en) 2009-06-10

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