DK2161443T3 - Vindmølle med en hovedstrømomformer og en hjælpestrømomformer og en fremgangsmåde til styring deraf - Google Patents

Vindmølle med en hovedstrømomformer og en hjælpestrømomformer og en fremgangsmåde til styring deraf Download PDF

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Publication number
DK2161443T3
DK2161443T3 DK09168541.2T DK09168541T DK2161443T3 DK 2161443 T3 DK2161443 T3 DK 2161443T3 DK 09168541 T DK09168541 T DK 09168541T DK 2161443 T3 DK2161443 T3 DK 2161443T3
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DK
Denmark
Prior art keywords
converter
power
main
wind turbine
generator
Prior art date
Application number
DK09168541.2T
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English (en)
Inventor
Hartmut Scholte-Wassink
Original Assignee
Gen Electric
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Publication of DK2161443T3 publication Critical patent/DK2161443T3/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
    • F03D7/028—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling wind motor output power
    • F03D7/0284—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling wind motor output power in relation to the state of the electric grid
    • 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
    • F03D7/0272—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor by measures acting on the electrical generator
    • 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
    • F03D7/047—Automatic control; Regulation by means of an electrical or electronic controller characterised by the controller architecture, e.g. multiple processors or data communications
    • 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
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • F03D9/255—Wind motors characterised by the driven apparatus the apparatus being an electrical generator connected to electrical distribution networks; Arrangements therefor
    • 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
    • F05B2240/40—Use of a multiplicity of similar components
    • 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

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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)
  • Power Engineering (AREA)
  • Control Of Eletrric Generators (AREA)

Claims (14)

1. Vindmølle (100) omfattende: en hovedgenerator (7) indrettet til at producere elektrisk strøm der skal leveres til et elnet (14) op til en nominel generatorudgangseffekt; en hovedstrømomformer (8) forbundet med hovedgeneratoren (7) og indrettet til at omforme den elektriske udgangseffekt fra hovedgeneratoren (7) til en elektrisk strøm indrettet til at blive leveret til elnettet (14) op til en første nominel omformerudgangseffekt; og en hjælpestrømomformer (9) forbundet med hovedgeneratoren (7) og indrettet til at omforme den elektriske udgangseffekt fra hovedgeneratoren (7) til en elektrisk strøm op til en anden nominel omformerudgangseffekt der er lavere end den første nominelle omformerudgangseffekt, kendetegnet ved at: vindmøllen (100) endvidere omfatter et internt forsyningsnet (13), hvor hjælpestrømomformeren (9) er en frekvensomformer (9) der omfatter en anden controller (90) indrettet til at betjene hjælpefrekvensomformeren (9) i en tilstand tilkoblet elnettet og i en stand-alone tilstand; hvor, i tilstanden tilkoblet elnettet, matcher hjælpefrekvensomformeren (9) mindst en fase med en sinussvingning leveret af elnettet (14) og/eller af hovedfrekvensvekselretteren (9) og maksimerer udgangseffekten; og hvor, i stand-alone tilstanden, tilvejebringer hjælpefrekvensomformeren (9) en strømforsyning af det interne forsyningsnet (13).
2. Vindmølle (100) ifølge krav 1, hvor hovedstrømomformeren (8) er en frekvensomformer (8) der er indrettet til at tilvejebringe elektrisk vekselstrøm ved frekvensen i elnettet (14).
3. Vindmølle (100) ifølge krav 1 eller 2, hvor vindmøllen (100) endvidere omfatter et internt forsyningsnet (13), og hvor hjælpestrømomformeren (9) er en frekvensomformer (9) der er indrettet til at levere elektrisk vekselstrøm ved elnetsfrekvensen (14) til det interne forsyningsnet (13).
4. Vindmølle (100) ifølge et hvilket som helst af de foregående krav, hvor den anden nominelle omformerudgangseffekt er mindst en størrelsesorden mindre end den første nominelle omformerudgangseffekt.
5. Vindmølle (100) ifølge et hvilket som helst af de foregående krav, hvor den første nominelle omformerudgangseffekt matcher den nominelle generatorudgangseffekt eller hvor summen af den første nominelle omformerudgangseffekt og den anden nominelle omformerudgangseffekt matcher den nominelle generatorudgangseffekt.
6. Vindmølle (100) ifølge et hvilket som helst af de foregående krav, hvor vindmøllen (100) endvidere omfatter et internt forsyningsnet (13), hvor hovedstrømomformeren (8) er indrettet til at levere elektrisk strøm med en første omformerudgangsspænding indrettet til at bliver overført til forsyningsnettet (14); hvor hjælpestrømomformeren (9) er indrettet til at levere elektrisk strøm med en anden omformerudgangsspænding til det interne forsyningsnet (13); og hvor den anden omformerudgangsspænding er lavere end den første omformerudgangsspænding.
7. Vindmølle (100) ifølge et hvilket som helst af de foregående krav, hvor vindmøllen (100) endvidere omfatter en rotor (1) med mindst en rotorvinge (2), et tachometer (40) til at måle rotorhastigheden og en hovedcontroller (10); hvor hovedstrømomformeren (8) omfatter en første controller (80) indrettet til at styre strømindgangen fra hovedgeneratoren (7) i overensstemmelse med strømreferencepunkter; og hvor hovedcontrolleren (10) er indrettet til at styre rotorhastigheden ved at måle rotorhastigheden og udsende strømreferencepunkter til den første controller (80).
8. Vindmølle (100) ifølge et hvilket som helst af de foregående krav, endvidere omfattende et pitchdrev for hver af rotorvingerne (2), hvor hovedcontrolleren (10) endvidere er indrettet til at styre pitchdrevene på rotorvingerne (2) således at strømproduktionen fra hjælpestrømomformeren (9) matcher vindmøllens (100) strømforbrug under et driftsstop af forsyningsnettet (14).
9. Vindmølle (100) ifølge et hvilket som helst af de foregående krav, hvor den anden controller (90) endvidere er indrettet til at skifte autonomt mellem tilstanden tilkoblet elnettet og stand-alone tilstanden efter at detektere en udgangsspænding af hovedgeneratoren (7) som er over en spændingstærskel og/eller at detektere en tilstand af vindmøllen hvor der ikke overføres strøm til forsyningsnettet (14).
10. Vindmølle (100) ifølge et hvilket som helst af de foregående krav, hvor hovedgeneratoren (7) er en permanent-magnetiseret generator.
11. Fremgangsmåde til at betjene vindmøllen (100) ifølge et hvilket som helst af de foregående krav til at producere elektrisk strøm der skal overføres til forsyningsnettet (14) indtil en nominel generatorudgangseffekt; omfattende: at tilvejebringe hovedstrømomformeren (8) forbundet med hovedgeneratoren (7) og indrettet til at omdanne den elektriske udgangseffekt fra hovedgeneratoren (7) til den elektriske strøm indrettet til at blive overført til forsyningsnettet (14) indtil den første nominelle omformerudgangseffekt; at tilvejebringe hjælpestrømomformeren (9) forbundet med hovedgeneratoren (7) og indrettet til at omdanne den elektriske udgangseffekt fra hovedgeneratoren (7) til den elektriske strøm indtil en anden nominel omformerudgangseffekt, idet den anden nominelle omformerudgangseffekt er lavere end den første nominelle omformerudgangseffekt; og at aktivere hjælpestrømomformeren (9).
12. Fremgangsmåde ifølge krav 11, hvor aktivering af hjælpestrømomformeren (9) omfatter mindst en af: at detektere en udgangsspænding for hovedgeneratoren (7) der er højere end en tærskelspænding; og at detektere tilstanden af forsyningsnettet (14).
13. Fremgangsmåde ifølge krav 11 eller krav 12, endvidere omfattende at skifte hjælpefrekvens- (9) omformeren til en tilstand tilkoblet elnettet, hvor at skifte hjælpefrekvensomformeren (9) til tilstanden tilkoblet elnettet omfatter mindst en af: at synkronisere hjælpefrekvensomformeren (9) til forsyningsnettet (14); og at synkronisere hjælpefrekvensomformeren (9) og hovedfrekvensomformeren (8).
14. Fremgangsmåde ifølge et hvilket som helst af kravene 11 til 13, hvor hovedgeneratoren (7) endvidere omfatter en generatorrotor, endvidere omfattende mindst en af: at deaktivere hjælpefrekvensomformeren (9); at aktivere hovedfrekvensomformeren (8); at deaktivere hovedfrekvensomformeren (8); at måle generatorrotorhastigheden; at matche vindmøllens (100) strømforbrug og strømproduktion.
DK09168541.2T 2008-09-08 2009-08-25 Vindmølle med en hovedstrømomformer og en hjælpestrømomformer og en fremgangsmåde til styring deraf DK2161443T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12/206,073 US8188610B2 (en) 2008-09-08 2008-09-08 Wind turbine having a main power converter and an auxiliary power converter and a method for the control thereof

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DK2161443T3 true DK2161443T3 (da) 2016-12-19

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US (1) US8188610B2 (da)
EP (1) EP2161443B1 (da)
CN (1) CN101672252B (da)
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