DK1931021T3 - Opsamlings- og overføringssystem - Google Patents

Opsamlings- og overføringssystem Download PDF

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Publication number
DK1931021T3
DK1931021T3 DK07122541.1T DK07122541T DK1931021T3 DK 1931021 T3 DK1931021 T3 DK 1931021T3 DK 07122541 T DK07122541 T DK 07122541T DK 1931021 T3 DK1931021 T3 DK 1931021T3
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DK
Denmark
Prior art keywords
connection
module
current
inverter
power
Prior art date
Application number
DK07122541.1T
Other languages
English (en)
Inventor
Rajib Datta
Christof Martin Sihler
Richard S Zhang
Original Assignee
Gen Electric
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Filing date
Publication date
Application filed by Gen Electric filed Critical Gen Electric
Application granted granted Critical
Publication of DK1931021T3 publication Critical patent/DK1931021T3/da

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Classifications

    • 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
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/483—Converters with outputs that each can have more than two voltages levels
    • H02M7/49—Combination of the output voltage waveforms of a plurality of converters

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)
  • Rectifiers (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Claims (7)

1. Opsamlings- og overføringssystem (10) omfattende: en systemjævnstrøms (DC) -forbindelse (12) konfigureret til at føre strøm fra en flerhed af fordelte generatorer (114, 214, 314, 414) til et elnet (16); og vekselstrøm-(AC)-til-DC-strømomformermoduler (19, 119, 219, 319) koblet i serie til system-DC-forbindelsen (12) på en kildeside af system-DC-forbindelsen, hvor hvert strømomformermodul er konfigureret til at blive koblet til en eller flere kilder (114, 214, 314, 414) på kildesiden, kendetegnet ved at hvert strømomformermodul omfatter en respektive omskifter (74), der er konfigureret til at kortslutte DC-terminalerne (72,85) af strømomformermodulet og afkoble strømomformermodulet fra DC-forbindelsen (12) i tilfældet af fejl ved modtagelse af et respektive styresignal, hvor omformermodulerne omfatter en inverter (22) og en bro (24) koblet mellem system-DC-forbindelsen (12) og inverteren (22), hvor hver respektive bro (24) omfatter to diodeomskifterpar (26, 28), hvor dioden (32, 34) og omskifteren (36, 38) af sådan et par er forbundet i serie og begge diodeomskifterpar er forbundet i parallel, og hver respektive bro (24) er konfigureret til at sende inputstrøm fra inverteren (22), når begge af omskifterne (36, 38) af diodeomskifterparret er lukkede, og opsamlings-og overføringssystemet yderligere omfatter en kontroller (40) konfigureret til at lukke mindst en af omskifterne (36,38) i tilfældet af fejl.
2. Systemet (10) ifølge krav 1, hvor hvert strømomformermodul (19,119,219,319) er konfigureret til uafhængigt at forblive i drift, når et andet af strømomformermodulerne er i en kortslutningstilstand.
3. Systemet (10) ifølge krav 1 eller krav 2, hvor mindst nogle af den ene eller flere kilder (114,214,314,414) omfatter vindmøllergeneratorer.
4. Systemet (10) ifølge krav 3, hvor mindst nogle af vindmøllergeneratorerne er beliggende offshore.
5. Systemet (10) ifølge et hvilket som helst af de foregående krav, hvor mindst et strømomformer (119) -modul omfatter mindst to underomformermoduler (56, 156) og hvor de to underomformermoduler omfatter mindst to DC-til-DC-omformere (58,158) koblet i serie over modul-DC-forbindelsen, mindst to AC-til-DC-omformere (60,160) koblet i parallel til kilden, og en modul-DC-forbindelse (123), der kobler de seriekoblede DC-til-DC-omformere (58,158) til de parallelkoblede AC-til-DC-omformere (60,160).
6. Systemet (10) ifølge et hvilket som helst af de foregående krav, hvor kontrolleren (40) er også til at drive en strøm af system-DC-forbindelsen (12) mod en styreværdi og hvor en spænding af system-DC-forbindelsen (12) er variabel fra nul til en nominal DC-forbindelsesspænding.
7. Opsamlings- og overføringsfremgangsmåde til at drive opsamlings- og overføringssystemet (10) ifølge et hvilket som helst af de foregående krav, hvilken fremgangsmåde omfatter: at føre strøm fra en flerhed af offshore-kilder (14) til et net (16); at koble mindst to vekselstrøm-(AC)-til-DC-strømomformermoduler (19,119,219,319) i serie til en system-DC-forbindelse (12) på en kildeside af system-DC-forbindelsen (12); og kendetegnet ved: senere at koble mindst et yderligere AC-til-DC-strømomformermodul (19,119,219,319) i serie til de oprindeligt koblede AC-til-DC-strømomformermoduler eller afkoble mindst et af de oprindeligt koblede AC-til-DC-strømomformermoduler; og at overføre inputstrøm fra en inverter (22) via en bro (24), når begge omskiftere (36,38) af diodeomskifterparret (26, 28) af broen (24) er lukkede, og yderligere omfattende at lukke mindst en af omskifterne (36,38) i tilfældet af fejl.
DK07122541.1T 2006-12-08 2007-12-06 Opsamlings- og overføringssystem DK1931021T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/608,570 US7633770B2 (en) 2006-12-08 2006-12-08 Collection and transmission system

Publications (1)

Publication Number Publication Date
DK1931021T3 true DK1931021T3 (da) 2017-07-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
DK07122541.1T DK1931021T3 (da) 2006-12-08 2007-12-06 Opsamlings- og overføringssystem

Country Status (4)

Country Link
US (1) US7633770B2 (da)
EP (1) EP1931021B1 (da)
CN (1) CN101197503B (da)
DK (1) DK1931021T3 (da)

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Also Published As

Publication number Publication date
EP1931021A2 (en) 2008-06-11
CN101197503B (zh) 2012-09-19
US7633770B2 (en) 2009-12-15
EP1931021B1 (en) 2017-05-03
EP1931021A3 (en) 2015-08-05
CN101197503A (zh) 2008-06-11
US20080137382A1 (en) 2008-06-12

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