DK200700863A - Fremgangsmåder og apparatur til levering og/eller absorbering af reaktiv effekt - Google Patents

Fremgangsmåder og apparatur til levering og/eller absorbering af reaktiv effekt Download PDF

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Publication number
DK200700863A
DK200700863A DK200700863A DKPA200700863A DK200700863A DK 200700863 A DK200700863 A DK 200700863A DK 200700863 A DK200700863 A DK 200700863A DK PA200700863 A DKPA200700863 A DK PA200700863A DK 200700863 A DK200700863 A DK 200700863A
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DK
Denmark
Prior art keywords
frequency converter
generator
electrical load
wind turbine
reactive power
Prior art date
Application number
DK200700863A
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English (en)
Inventor
Walling Reigh
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 of DK200700863A publication Critical patent/DK200700863A/da
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Publication of DK178161B1 publication Critical patent/DK178161B1/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 
    • 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
    • H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/16—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by adjustment of reactive power
    • 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
    • H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
    • H02J3/1835—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control
    • H02J3/1842—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control wherein at least one reactive element is actively controlled by a bridge converter, e.g. active filters
    • 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
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • 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
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381—Dispersed generators
    • 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
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
    • H02J3/50—Controlling the sharing of the out-of-phase component
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
    • H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
    • H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
    • H02M5/453—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M5/458—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M5/4585—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only having a rectifier with controlled elements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/06—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric generators; for synchronous capacitors
    • H02H7/067—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric generators; for synchronous capacitors on occurrence of a load dump
    • 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
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/28—The renewable source being wind energy
    • 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

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  • 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)
  • Wind Motors (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Claims (9)

1. Vindmølle (10), kendetegnet ved at den omfatter: en rotor (14) omfattende et nav (20), mindst én rotorvinge (22), som er koblet til navet, og en rotoraksel (26, 28), der er koblet til navet for rotation sammen med dette; en elektrisk generator (24), som er koblet til rotorakslen; en frekvensomformer (36) på generatorsiden, der er koblet elektrisk til den elektriske generator, for at omforme vekselstrøm med variabel frekvens, der modtages fra den elektriske generator, til jævnstrøm, hvor frekvensomformeren på generatorsiden er koblet elektrisk til en elektrisk belastning (40) og konfigureret til mindst én af levering af reaktiv effekt til den elektriske belastning og absorbering af reaktiv effekt fra den elektriske belastning; en frekvensomformer (38) pa forsyningsnetsiden, der er koblet elektrisk til frekvensomformeren på generatorsiden, for at omforme jævnstrøm, der modtages fra frekvensomformeren på generatorsiden, til vekselstrøm med fast frekvens, hvor frekvensomformeren på forsyningsnetsiden er koblet elektrisk til den elektriske belastning og konfigureret til mindst én af levering af reaktiv effekt til den elektriske belastning eller absorbering af reaktiv effekt fra den elektriske belastning.
2. Vindmølle (10) ifølge krav 1, kendetegnet ved, at frekvensomformeren (36) på generatorsiden og frekvensomformeren (38) på forsyningsnetsiden er koblet elektrisk til den elektriske belastning (40) i parallel.
3. Vindmølle (10) ifølge krav 1, kendetegnet ved yderligere at omfatte en afbryder (42, 44, 46), der er koblet elektrisk langs den elektriske forbindelse mellem den elektriske generator (24) og frekvensomformeren (36) på generatorsiden, til selektivt elektrisk at isolere den elektriske generator fra frekvensomformeren på generatorsiden.
4. Vindmølle (10) ifølge krav 1, kendetegnet ved yderligere at omfatte en afbryder (42, 44, 46), der er koblet elektrisk langs den elektriske forbindelse mellem den elektriske belastning (40) og frekvensomformeren (36) på generatorsiden, til selektivt elektrisk at isolere den elektriske belastning fra frekvensomformeren på generatorsiden.
5. Vindmølle (10) ifølge krav 1, kendetegnet ved yderligere at omfatte en processor (52), der er koblet til frekvensomformeren (36) på generatorsiden og frekvensomformeren (38) på forsyningsnetsiden,
6. Vindmølle (10) ifølge krav 5, kendetegnet ved, at processoren (52) er konfigureret til samtidigt at forsyne den elektriske belastning (40) med reaktiv effekt fra frekvensomformeren (36) på generatorsiden og frekvensomformeren (38) på forsyningsnetsiden,
7. Vindmølle (10) ifølge krav 5, kendetegnet ved, at processoren (52) er konfigureret til samtidigt at absorbere reaktiv effekt fra den elektriske belastning (40) ved anvendelse af frekvensomformeren (36) på generatorsiden og frekvensomformeren (38) på forsyningsnetsiden.
8. Vindmølle (10) ifølge krav 5, kendetegnet ved, at processoren (52) er koblet til den elektriske belastning (40) og er konfigureret til at regulere en spænding for den elektriske belastning ved anvendelse af frekvensomformeren (36) på generatorsiden og frekvens-omformeren (38) på forsyningsnetsiden.
9. Vindmølle (10) ifølge krav 1, kendetegnet ved, at den elektriske belastning (40) er et elnet.
DK200700863A 2006-06-19 2007-06-15 Fremgangsmåder og indretning til levering og/eller absorbering af reaktiv effekt DK178161B1 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/424,989 US7312537B1 (en) 2006-06-19 2006-06-19 Methods and apparatus for supplying and/or absorbing reactive power
US42498906 2006-06-19

Publications (2)

Publication Number Publication Date
DK200700863A true DK200700863A (da) 2007-12-20
DK178161B1 DK178161B1 (da) 2015-07-06

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Country Link
US (2) US7312537B1 (da)
CN (1) CN101092941B (da)
DE (1) DE102007028582B4 (da)
DK (1) DK178161B1 (da)
ES (1) ES2340236B2 (da)

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CN101092941A (zh) 2007-12-26
ES2340236B2 (es) 2012-02-03
ES2340236A1 (es) 2010-05-31
DK178161B1 (da) 2015-07-06
US7312537B1 (en) 2007-12-25
US7397143B2 (en) 2008-07-08
US20080093855A1 (en) 2008-04-24
CN101092941B (zh) 2012-06-13
DE102007028582A1 (de) 2007-12-20
US20070290506A1 (en) 2007-12-20
DE102007028582B4 (de) 2021-03-04

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