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EP2532016B1 - Dispositif de limitation de courant ayant une impédance de bobine variable - Google Patents

Dispositif de limitation de courant ayant une impédance de bobine variable Download PDF

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Publication number
EP2532016B1
EP2532016B1 EP10805601.1A EP10805601A EP2532016B1 EP 2532016 B1 EP2532016 B1 EP 2532016B1 EP 10805601 A EP10805601 A EP 10805601A EP 2532016 B1 EP2532016 B1 EP 2532016B1
Authority
EP
European Patent Office
Prior art keywords
coil
current
superconducting
cryostat
choke coil
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP10805601.1A
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German (de)
English (en)
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EP2532016A1 (fr
Inventor
Mathias Noe
Christian Schacherer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Karlsruher Institut fuer Technologie KIT
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Karlsruher Institut fuer Technologie KIT
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Publication of EP2532016A1 publication Critical patent/EP2532016A1/fr
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/02—Adaptations of transformers or inductances for specific applications or functions for non-linear operation
    • H01F38/023—Adaptations of transformers or inductances for specific applications or functions for non-linear operation of inductances
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/08—Cooling; Ventilating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F6/00—Superconducting magnets; Superconducting coils
    • H01F2006/001—Constructive details of inductive current limiters

Definitions

  • the present invention relates to a current limiting device with a variable coil impedance.
  • Current limiters are generally used in power engineering and in the electrical energy supply. In power engineering in general, and in particular in high-voltage engineering, it is above all current limiters which operate using choke coils on the principle of the shielded iron core or the DC biased iron core.
  • I s limiters are the current limiters designated as I s limiters.
  • the advantage of this I s -limiter is that the impedance in normal operation is negligible, but can be increased abruptly in the event of a fault. This is realized by detonators.
  • a disadvantage of this system is that the use of blasting caps after each triggering causes a maintenance operation and that it is only limitedly scalable to high voltage applications.
  • the DE 602004012035 describes, for example, a superconducting current limiter with magnetic field assisted quench. In the event of a fault, the current flowing through the superconductor leads to a critical current and the superconductor changes to the normal conducting state. According to the in the DE 602004012035 Strombeskyrs disclosed each superconductor body is connected in parallel with a coil.
  • resistive superconducting current limiters which limit the current in the event of a short circuit due to their non-linear current-voltage line.
  • a disadvantage of the latter two principles is that the power supply via suitable Medium between a room temperature environment and a cryogenic environment must be made. This leads to high thermal losses.
  • the JP H05 145128 A discloses a device for current limiting with a choke coil, a cooling device and a magnetic shield from a high temperature superconducting hollow body in the choke coil.
  • the object of the invention is therefore to provide a current limiter which avoids the limitations and disadvantages mentioned.
  • the invention should specify a current limiter, which limits the current quickly and reliably in the event of a fault, automatically returns to normal, and increases the impedance in nominal operation only to a negligible extent.
  • the current limiter should continue to be used in combination with the inductors used many times and can be retrofitted into existing networks.
  • a current limiter is proposed in which the inductance and thus the impedance of the choke coil is significantly reduced by the use of a superconducting coil in the interior of a choke coil. This is done by currents that are induced in the superconducting coil and compensate for the magnetic field of the inductor.
  • the choke coil of the current limiter comprises a sealed cryostat, which has no electrical connection to its surroundings.
  • a short-circuited coil is arranged, which consists of a superconducting material.
  • This coil comprises a superconducting coil consisting of only one shorted turn.
  • the short-circuited coil consists of a commercially available superconducting band conductor.
  • the superconducting coil compensates the magnetic field of the choke coil. As a result, the inductance is lowered and the voltage drop during normal operation is minimized.
  • the superconductor changes to the normal conducting state and increases the inductance, whereby the current is limited. After switching off the excessively high current, the superconductor returns automatically to the superconducting state after a short time, and normal operation can be resumed.
  • An advantage of the current limiter according to the invention is its intrinsic intrinsic safety due to the material properties of the superconductor itself. This allows a waiver of additional triggering mechanisms.
  • a particular advantage is that no iron core is necessary for effective current limitation, which has an advantageous effect on the impedance of the system and also on the dimensioning of the component.
  • the absence of iron cores allows a compact design of the current limiter, so that it can be installed in existing network systems. In this way, conventional measures for limiting the current with a choke coil can be made more efficient. This is both by equipping new energy networks with a short-circuited superconducting coil to reduce the impedance in nominal operation, as well as by retrofitting existing networks.
  • cryostat can therefore be implemented as a closed system and the usually occurring thermal losses that occur in electrical connections between a room temperature environment and a cryogenic environment are avoided.
  • Fig. 1 schematically is an arrangement of a choke coil 1 , a cryostat 2 , which is filled with liquid nitrogen 3 , a cooling device 4 and a HTS coil 5 shown.
  • the HTS coil 5 is designed in the embodiment as a YBCO band conductor with a, not shown in the figure, winding, this winding consists of only one shorted turn.
  • the HTS coil 5 is also arranged in a cryostat 2 , wherein a cooling device 4 cools the nitrogen 3 located therein and surrounding the HTS coil. In this way, the superconducting properties of the HTS coil 5 are generated.
  • Fig. 2 shows the equivalent circuit of the choke coil 1 with an ohmic resistance 11 and a leakage inductance 12 and with an inserted HTS coil 5 , which has a variable impedance 21 .
  • the entire arrangement of the coils has the main inductance 22 .
  • the short-circuited HTS coil 5 compensates for the magnetic field of the choke coil 1 in normal operation. By this compensation, the inductance is lowered and the losses of the system in normal operation are minimized. If, however, there is a short circuit, the HTS coil 5 changes to the normal conducting state. The magnetic field of the choke coil 1 is no longer compensated and as a result, the inductance increases. The short-circuit current is thereby limited. When the short-circuit current ceases, the HTS coil 5 returns to the superconducting state after a few seconds and normal operation resumes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Containers, Films, And Cooling For Superconductive Devices (AREA)

Claims (4)

  1. Dispositif de limitation de courant ayant une impédance de bobine variable, comprenant une bobine de self (1) et un dispositif de refroidissement (4), une autre bobine (5) en un matériau supraconducteur à haute température étant monté dans la bobine de self (1) et le limitateur de courant étant réalisé" sans noyau en fer, et l'autre bobine (5) étant en court-circuit électrique, caractérisé en ce que l'autre bobine (5) est constituée d'un conducteur plat supraconducteur n'ayant qu'un seul enroulement en court-circuit.
  2. Dispositif conforme à la revendication 1, dans lequel le dispositif de refroidissement (4) renferme un cryostat (2).
  3. Dispositif conforme à la revendication 2, dans lequel le cryostat (2) est réalisé sous la forme d'un système fermé sans moyen de liaison électrique de l'autre bobine (5) à son environnement électrique.
  4. Dispositif conforme à l'une des revendications 1 à 3, dans lequel l'autre bobine (5) en matériau supraconducteur à haute température est montée à la partie interne du cryostat (2).
EP10805601.1A 2010-02-06 2010-12-21 Dispositif de limitation de courant ayant une impédance de bobine variable Active EP2532016B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010007087A DE102010007087A1 (de) 2010-02-06 2010-02-06 Vorrichtung zur Strombegrenzung mit einer veränderbaren Spulenimpedanz
PCT/EP2010/007837 WO2011095199A1 (fr) 2010-02-06 2010-12-21 Dispositif de limitation de courant avec une impédance de bobine modifiable

Publications (2)

Publication Number Publication Date
EP2532016A1 EP2532016A1 (fr) 2012-12-12
EP2532016B1 true EP2532016B1 (fr) 2015-08-26

Family

ID=43827301

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10805601.1A Active EP2532016B1 (fr) 2010-02-06 2010-12-21 Dispositif de limitation de courant ayant une impédance de bobine variable

Country Status (5)

Country Link
US (1) US9583258B2 (fr)
EP (1) EP2532016B1 (fr)
JP (1) JP5907894B2 (fr)
DE (1) DE102010007087A1 (fr)
WO (1) WO2011095199A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012218260B3 (de) 2012-10-05 2013-12-05 Bruker Hts Gmbh Induktiver Fehlerstrombegrenzer mit geteilter Sekundärspulenanordnung
DE102012218261B3 (de) 2012-10-05 2013-11-14 Bruker Hts Gmbh Induktiver Fehlerstrombegrenzer mit geteilter Primärspulenanordnung
CN104425118B (zh) * 2013-09-06 2016-08-17 华中科技大学 一种超导可控电抗器
US9721709B2 (en) * 2014-06-04 2017-08-01 Novum Industria Llc Inductively decoupled dual SMES in a single cryostat
DE102015210655A1 (de) 2015-02-27 2016-09-01 Siemens Aktiengesellschaft Elektrische Spuleneinrichtung zur induktiv-resistiven Strombegrenzung
DE102015208470A1 (de) 2015-05-07 2016-11-10 Siemens Aktiengesellschaft Elektrische Spuleneinrichtung zur Strombegrenzung
CN105551779B (zh) * 2016-03-07 2017-05-31 云南电网有限责任公司电力科学研究院 一种超导可控电抗器
DE102016213755A1 (de) 2016-07-27 2018-02-01 Siemens Aktiengesellschaft Wicklungsträger für eine elektrische Spulenwicklung
DE102016213753A1 (de) 2016-07-27 2018-02-01 Siemens Aktiengesellschaft Gewickelte Leiteranordnung mit Abstandselement
DE102016223022A1 (de) 2016-09-23 2018-03-29 Siemens Aktiengesellschaft Induktiver Strombegrenzer für Gleichstromanwendungen
DE102016221029A1 (de) 2016-10-26 2018-04-26 Siemens Aktiengesellschaft Elektrische Spuleneinrichtung zur Strombegrenzung mit Kryostat
DE102017120002A1 (de) 2017-08-31 2019-02-28 Karlsruher Institut für Technologie Strombegrenzungsvorrichtung
DE102017217524A1 (de) 2017-10-02 2019-04-04 Siemens Aktiengesellschaft Strombegrenzereinrichtung und Verfahren zur Fehlerfall-Bestimmung
EP3496116A1 (fr) 2017-12-07 2019-06-12 Bruker HTS GmbH Appareil et procédé de conditionnement de courant, à l'aide d'une bobine primaire couplée à des bobines secondaires de matériau supraconducteur, avec des transitions lissées
WO2019158180A1 (fr) 2018-02-13 2019-08-22 Siemens Aktiengesellschaft Dispositif destiné à limiter le courant électrique

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JPH05145273A (ja) * 1991-11-15 1993-06-11 Hitachi Cable Ltd 磁気シールド体およびその製造方法
JPH05145128A (ja) * 1991-11-20 1993-06-11 Agency Of Ind Science & Technol 超伝導限流器

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DE1563335B2 (de) * 1966-04-26 1971-04-29 Siemens AG, 1000 Berlin u 8000 München Spule mit veraenderlicher induktivitaet als strombegrenzungs einrichtung fuer energieuebertragungsanlagen
US3486079A (en) * 1967-10-24 1969-12-23 Us Army Superconductor switch
DE1932379C3 (de) * 1969-06-26 1978-05-11 Siemens Ag, 1000 Berlin Und 8000 Muenchen Spule mit veränderlicher Induktivität als Strombegrenzungseinrichtung für Energieübertragungsanlagen
SU489176A1 (ru) * 1973-10-05 1975-10-25 Предприятие П/Я В-2156 Устройство дл ограничени токов короткого замыкани
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JPH05275757A (ja) 1992-03-30 1993-10-22 Ngk Insulators Ltd 超電導限流器
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FR2691591A1 (fr) * 1992-05-25 1993-11-26 Alsthom Gec Limiteur de courant hybride supraconducteur pour réseau alternatif haute tension.
FR2701157B1 (fr) * 1993-02-04 1995-03-31 Alsthom Cge Alcatel Liaison d'alimentation pour bobine supraconductrice.
US5379020A (en) * 1993-06-04 1995-01-03 Abb Research Ltd. High-temperature superconductor and its use
DE19524579C2 (de) * 1995-07-06 1997-12-18 Daimler Benz Ag Transformator als Strombegrenzer
JPH0984259A (ja) * 1995-09-14 1997-03-28 Chubu Electric Power Co Inc 超電導限流器
DE19628358C1 (de) 1996-07-13 1998-01-22 Karlsruhe Forschzent Supraleitender Kurzschlußstrombegrenzer
JPH10285792A (ja) * 1997-03-31 1998-10-23 Tokyo Electric Power Co Inc:The 限流装置
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US20060158803A1 (en) * 2003-01-27 2006-07-20 Bar Ilan University Fault current limiters (fcl) with the cores staurated by superconducting coils
DE602004012035T2 (de) 2003-10-15 2009-03-19 Nexans Supraleitender Strombegrenzer mit magnetfeldunterstütztem Quench
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Publication number Priority date Publication date Assignee Title
JPH05145273A (ja) * 1991-11-15 1993-06-11 Hitachi Cable Ltd 磁気シールド体およびその製造方法
JPH05145128A (ja) * 1991-11-20 1993-06-11 Agency Of Ind Science & Technol 超伝導限流器

Also Published As

Publication number Publication date
DE102010007087A1 (de) 2011-08-11
JP5907894B2 (ja) 2016-04-26
JP2013519219A (ja) 2013-05-23
EP2532016A1 (fr) 2012-12-12
US9583258B2 (en) 2017-02-28
US20120306606A1 (en) 2012-12-06
WO2011095199A1 (fr) 2011-08-11

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