DK2955808T3 - Fremgangsmåde til regulering af et vindenergianlæg under en asymmetrisk netfejl - Google Patents

Fremgangsmåde til regulering af et vindenergianlæg under en asymmetrisk netfejl Download PDF

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Publication number
DK2955808T3
DK2955808T3 DK14172445.0T DK14172445T DK2955808T3 DK 2955808 T3 DK2955808 T3 DK 2955808T3 DK 14172445 T DK14172445 T DK 14172445T DK 2955808 T3 DK2955808 T3 DK 2955808T3
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DK
Denmark
Prior art keywords
rotor
value
reactive current
line
inverter
Prior art date
Application number
DK14172445.0T
Other languages
English (en)
Inventor
Wessel Christian
Original Assignee
Nordex Energy Gmbh
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Publication date
Application filed by Nordex Energy Gmbh filed Critical Nordex Energy Gmbh
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Publication of DK2955808T3 publication Critical patent/DK2955808T3/da

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/007—Control circuits for doubly fed generators
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
    • H02J3/1885—Arrangements for adjusting, eliminating or compensating reactive power in networks using rotating means, e.g. synchronous generators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/26—Power factor control [PFC]
    • 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
    • F03D7/048—Automatic control; Regulation by means of an electrical or electronic controller controlling wind farms
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P2101/00—Special adaptation of control arrangements for generators
    • H02P2101/15—Special adaptation of control arrangements for generators for wind-driven turbines
    • 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
    • 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
    • Y02E10/76—Power conversion electric or electronic aspects
    • 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
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/30—Reactive power compensation

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (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)
  • Control Of Eletrric Generators (AREA)

Claims (7)

1. Fremgangsmåde til regulering af et vindenergianlæg (10), som er tilsluttet et trefaset elektrisk forsyningsnet (22), under en asymmetrisk netfejl, hvorved vindenergianlægget (10) har en dobbelt strømforsynet asynkron generator (15), hvis rotor (16) er forbundet via en vekselstrøm-omformer (26) med det elektriske forsyningsnet (22) og stator (18) med det elektriske forsyningsnet (22), hvorved vekselstrøm-omformeren (26) har en på rotorsiden værende omformer (30), en på nettet værende omformer (32) og en reguleringsindretning (27), hvori der tilvejebringes en karakteristik (48), som for en aktuel værdi af en netspænding i et modsystem (52) angiver en nominel værdi for en tilførende reaktiv strøm i modsystemet, kendetegnet ved følgende trin: - måling af netspændingens (58) aktuelle værdi i mindst to faser, - transformering af den målte aktuelle værdi for netspændingen (58) til en aktuel værdi for netspændingen (52) i modsystemet, - bestemmelse af en nominel værdi for en reaktiv strøm, som skal tilføres det elektriske forsyningsnet, i modsystemet på basis af den tilvejebragte karakteristik (48) og netspændingens aktuelle værdi i modsystemet (52), - opdeling af den bestemte nominelle værdi for den reaktive strøm, der skal tilføres det elektriske forsyningsnet, i modsystemet, og den på netsiden værende omformer (30, 32) ved bestemmelse af en nominel værdi for en andel (43) af den reaktive strøm, som skal stilles til rådighed ved hjælp af den på rotorsiden værende omformer, og af en nominel værdi for en andel (46) af den reaktive strøm, som skal stilles til rådighed ved hjælp af den på netsiden værende omformer, ifølge en i reguleringsindretningen (27) tilvejebragt opdelingsforskrift, og - styring af den på rotorsiden værende omformer (30) og den på netsiden værende omformer (32) til tilføringen af den reaktive strøm i overensstemmelse med de opdelte nominelle værdier (43, 46), kendetegnet ved, at - den nominelle værdi for den ved hjælp af den på rotorsiden værende omformer til rådighed stillende reaktive strømandel (43) begrænses til en på forhånd bestemt maksimalværdi (220), - ved opdelingen af den nominelle værdi for den reaktive strøm, der skal tilføres, i modsystemet under den på forhånd definerede maksimale værdi (220) i den på netsiden værende omformer (32), indstilles en lavere nominel værdiandel i forhold til den nominelle værdi for den reaktive strømandel, som skal tilføres ved hjælp af den på rotorsiden værende omformer, - en registreret aktuel værdi for en elektrisk rotorstørrelse sammenlignes med en på forhånd bestemt tærskelværdi for den elektriske rotorstørrelse, og når den elektriske rotorstørrelses aktuelle værdi fastsættes større end den på forhånd bestemte tærskelværdi for en elektrisk rotorstørrelse, sker opdelingen af den nominelle værdi for den reaktive strøm, som skal tilføres i det elektriske forsyningsnet, i modsystemet, således at den nominelle værdi for den reaktive strømandel, der skal stilles til rådighed ved hjælp af den på rotorsiden værende omformer, øges op over den på forhånd bestemte tærskelværdi i et lavere omfang end under den på forhånd bestemte tærskelværdi.
2. Fremgangsmåde ifølge krav 1, kendetegnet ved, at opdelingsforskriften gives i afhængighed af den elektriske rotorstørrelse.
3. Fremgangsmåde ifølge krav 2, kendetegnet ved, at opdelingsforskriften omfatter en matematisk funktion.
4. Fremgangsmåde ifølge krav 3, kendetegnet ved, at opdelingsforskriften fører den nominelle værdiandel for den på rotorsiden værende omformer asymptotisk frem til maksimalværdien afhængig af den elektriske rotorstørrelse.
5. Fremgangsmåde ifølge et af kravene 1 til 4, kendetegnet ved, at opdelingsforskriften omfatter et karakteristikfelt.
6. Fremgangsmåde ifølge et af kravene 1 til 5, kendetegnet ved, at den elektriske rotorstørrelse er en rotorstrøm.
7. Fremgangsmåde ifølge et af kravene 1 til 5, kendetegnet ved, at den elektriske rotorstørrelse er en rotorspænding.
DK14172445.0T 2014-06-13 2014-06-13 Fremgangsmåde til regulering af et vindenergianlæg under en asymmetrisk netfejl DK2955808T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14172445.0A EP2955808B1 (de) 2014-06-13 2014-06-13 Verfahren zur Regelung einer Windenergieanlage während eines asymmetrischen Netzfehlers

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DK2955808T3 true DK2955808T3 (da) 2018-12-03

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US (1) US9461572B2 (da)
EP (1) EP2955808B1 (da)
DK (1) DK2955808T3 (da)
ES (1) ES2690350T3 (da)

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Also Published As

Publication number Publication date
ES2690350T3 (es) 2018-11-20
US20150365031A1 (en) 2015-12-17
EP2955808B1 (de) 2018-08-08
EP2955808A1 (de) 2015-12-16
US9461572B2 (en) 2016-10-04

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