DK2771955T3 - Systemer og fremgangsmåder til anvendelse i identificering af og svar på type af netfejlshændelse - Google Patents

Systemer og fremgangsmåder til anvendelse i identificering af og svar på type af netfejlshændelse Download PDF

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Publication number
DK2771955T3
DK2771955T3 DK11874527.2T DK11874527T DK2771955T3 DK 2771955 T3 DK2771955 T3 DK 2771955T3 DK 11874527 T DK11874527 T DK 11874527T DK 2771955 T3 DK2771955 T3 DK 2771955T3
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DK
Denmark
Prior art keywords
grid
converter
power
voltage
type
Prior art date
Application number
DK11874527.2T
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English (en)
Inventor
Huibin Zhu
David Smith
Maozhong Gong
Xueqin Wu
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Gen Electric
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Publication of DK2771955T3 publication Critical patent/DK2771955T3/da

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • 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
    • H02H7/10—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 converters; for rectifiers
    • 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
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • 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
    • H02J3/40—Synchronising a generator for connection to a network or to another generator
    • H02J3/44—Synchronising a generator for connection to a network or to another generator with means for ensuring correct phase sequence
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
    • G01R19/2513—Arrangements for monitoring electric power systems, e.g. power lines or loads; Logging
    • 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
    • H02J2300/22—The renewable source being solar energy
    • H02J2300/24—The renewable source being solar energy of photovoltaic origin
    • 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
    • H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
    • H02J3/50—Controlling the sharing of the out-of-phase component
    • 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
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers
    • 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
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Eletrric Generators (AREA)
  • Inverter Devices (AREA)

Claims (8)

1. Strømmodul (108) til anvendelse i styring af en omformer (110) koblet mellem en strømgenerator (104) og et elnet (102), hvor nævnte strømmodul (108) omfatter: en omformer (110) konfigureret til at levere et output fra en strømgenerator (104) til et elnet (102); og en kontroller (112) koblet til nævnte omformer (110) og konfigureret til at detektere en netfejlshændelse baseret på en amplitude og/eller en fasefrekvens af en spænding målt ved en af nævnte omformer og elnettet (102), og til at deaktivere nævnte omformer samtidig med at fastholde en kobling mellem strømgeneratoren (104) og elnettet (102) i reaktion på netfejlshændelsen; til at identificere typen af netfejlshændelse efter et første forudbestemt interval fra deaktiveringen af nævnte omformer (110), hvor det første forudbestemte interval er inden for området mellem 2 millisekunder og 20 millisekunder, og til at aktivere nævnte omformer (110), når typen af netfejlshændelsen er identificeret som en lavspændingstilstand, i hvilken spændingen af mindst en fase af elnettet er lavere end en nominel spænding af nettet.
2. Strømmodulet (108) ifølge krav 1, hvor nævnte kontroller (112) er konfigureret til at bestemme, hvorvidt et faselåst sløjfe (PLL) -modul (123) af nævnte kontroller (112) er låst på elnettet efter et andet forudbestemt interval på mellem 10 millisekunder og 120 millisekunder, når typen af netfejlshændelsen er identificeret af nævnte kontroller som en fasespringstilstand.
3. Strømmodulet (108) ifølge krav 1, hvor nævnte kontroller (112) er konfigureret til at aktivere nævnte omformer (110) for at outputte reaktiv strøm til elnettet (102), når typen af netfejlshændelsen er identificeret af nævnte kontroller (112) som en lavspændingstilstand.
4. Strømmodulet (108) ifølge krav 1, hvor nævnte strømmodul (108) er konfigureret til at udløse, når typen af netfejlshændelsen er identificeret som en fasespringstilstand og netfejlshændelsen varer ved i mindst omkring 1,0 sekund efter identificering som en fasespringstilstand.
5. Fremgangsmåde (200) til anvendelse af et strømmodul (108) i styring afen omformer (110) koblet mellem en strømgenerator (104) og et elnet (102), hvor strømmodulet (108) inkluderer en omformer (118) og en kontroller (112) koblet til omformeren (118), hvor nævnte fremgangsmåde omfatter: at detektere en netfejlshændelse baseret på en amplitude og/eller en fasefrekvens af en spænding målt ved en af nævnte omformer og elnettet (102); at deaktivere omformeren (118) baseret på den detekterede netfejlshændelse samtidig med at fastholde kobling mellem strømgeneratoren (104) og elnettet (102); at identificere, ved kontrolleren (112), typen af netfejlshændelsen efter afventning i et første forudbestemt interval, hvor det første forudbestemte interval er inden for området mellem omkring 2,0 millisekunder og omkring 20,0 millisekunder; og at aktivere nævnte omformer (110), når typen af netfejlshændelsen identificeres som en lavspændingstilstand, i hvilken spændingen af mindst en fase af elnettet er lavere end en nominel spænding af nettet.
6. Fremgangsmåden (200) ifølge krav 5, yderligere omfattende at aktivere omformeren (118), når den identificerede type af netfejlshændelsen er en lavspændingstilstand, for at levere reaktiv effekt til elnettet (102).
7. Fremgangsmåden (200) ifølge krav 5, yderligere omfattende at bestemme hvorvidt et faselåst sløjfe (PLL) -modul 123) af strømmodulet (108) er låst på spændingen associeret med omformeren (118) efter et andet forudbestemt interval på mellem 10 millisekunder og 120 millisekunder, når den identificerede type af netfejlshændelse er en fasespringstilstand.
8. Fremgangsmåden (200) ifølge krav 7, yderligere omfattende at udløse strømmodulet (108), når PLL-modulet (123) ikke er låst på spændingen associeret med omformeren (118) efter mindst 1,0 sekund fra identificeringen af typen af netfejlshændelsen.
DK11874527.2T 2011-10-28 2011-10-28 Systemer og fremgangsmåder til anvendelse i identificering af og svar på type af netfejlshændelse DK2771955T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2011/081499 WO2013060019A1 (en) 2011-10-28 2011-10-28 Systems and methods for using in identifying and responding to type of grid fault event

Publications (1)

Publication Number Publication Date
DK2771955T3 true DK2771955T3 (da) 2018-01-22

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Country Link
US (1) US9843182B2 (da)
EP (1) EP2771955B1 (da)
CN (1) CN104025413B (da)
DK (1) DK2771955T3 (da)
WO (1) WO2013060019A1 (da)

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CN107767975B (zh) * 2017-10-17 2020-01-21 中北大学 一种核动力装置关重部件质量性能的监测与故障诊断方法
FR3088494B1 (fr) * 2018-11-08 2020-10-23 Psa Automobiles Sa Dispositif d’inhibition de la sortie de courant d’un equipement, a elements de commutation a fuite surveillee

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US20140293489A1 (en) 2014-10-02
CN104025413A (zh) 2014-09-03
EP2771955B1 (en) 2017-12-13
EP2771955A4 (en) 2015-09-09
WO2013060019A1 (en) 2013-05-02
CN104025413B (zh) 2018-06-26
US9843182B2 (en) 2017-12-12
EP2771955A1 (en) 2014-09-03

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