EP2532016A1 - Dispositif de limitation de courant avec une impédance de bobine modifiable - Google Patents

Dispositif de limitation de courant avec une impédance de bobine modifiable

Info

Publication number
EP2532016A1
EP2532016A1 EP10805601A EP10805601A EP2532016A1 EP 2532016 A1 EP2532016 A1 EP 2532016A1 EP 10805601 A EP10805601 A EP 10805601A EP 10805601 A EP10805601 A EP 10805601A EP 2532016 A1 EP2532016 A1 EP 2532016A1
Authority
EP
European Patent Office
Prior art keywords
coil
current
superconducting
impedance
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.)
Granted
Application number
EP10805601A
Other languages
German (de)
English (en)
Other versions
EP2532016B1 (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
Original Assignee
Karlsruher Institut fuer Technologie KIT
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.)
Filing date
Publication date
Application filed by Karlsruher Institut fuer Technologie KIT filed Critical Karlsruher Institut fuer Technologie KIT
Publication of EP2532016A1 publication Critical patent/EP2532016A1/fr
Application granted granted Critical
Publication of EP2532016B1 publication Critical patent/EP2532016B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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 according to the principle of the shielded iron core or the DC-preshaped 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.
  • detonators causes a maintenance process after each trigger and that it is only scalable to a limited extent in high-voltage engineering.
  • 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 current limiter disclosed in DE 602004012035, 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 is supplied via suitable means must be provided between a room temperature environment and a cryogenic environment. This leads to high thermal losses.
  • 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.
  • 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.
  • the Kyrostat can therefore be implemented as a closed system, avoiding the typically occurring thermal losses associated with electrical connections between a room temperature environment and a cryogenic environment.
  • Fig. 1 shows an overview diagram of an arrangement of a choke coil with inserted high-temperature superconductor (HTS) coil and cooling device.
  • HTS high-temperature superconductor
  • Fig. 2 shows the equivalent circuit of a choke coil with inserted HTS coil.
  • Fig. 1 an arrangement of a choke coil 1, a Kyrostat 2, which is filled with liquid nitrogen 3, a cooling device 4 and a HTS coil 5 is shown schematically.
  • the HTS coil 5 is configured in the embodiment as a YBCO band conductor with a winding, not shown in the figure, wherein this winding is short-circuited.
  • the HTS coil 5 is also arranged in a Kyrostat 2, which cools a cooling device 4 located in it and the HTS coil surrounding nitrogen 3. In this way, the superconducting properties of the HTS coil 5 are generated.
  • FIG. 2 shows the equivalent circuit diagram of the choke coil 1 with an ohmic resistance 11 and a leakage inductance 12 and with a set HTS coil 5 having a variable impedance 21.
  • the entire arrangement of the coils has the main inductance 22.
  • the short-circuited HTS coil 5 compensates in normal operation, the magnetic field of the choke coil 1. By this compensation, the Induktivi tat 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 Drosselspu le 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. LIST OF REFERENCE NUMBERS

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)

Abstract

La présente invention concerne un dispositif de limitation de courant avec une impédance de bobine modifiable. Elle concerne un limiteur de courant dans lequel l'utilisation d'une bobine supraconductrice (5) à l'intérieur d'une bobine de réactance (1) permet de réduire significativement l'inductance et par conséquent l'impédance de la bobine de réactance. Cela se produit, par des courants qui sont induits dans la bobine supraconductrice et qui compensent le champ magnétique de la bobine de réactance en fonctionnement normal. Lorsque le courant dépasse une certaine valeur, le supraconducteur passe à l'état conducteur normal et augmente l'inductance, ce qui limite le courant. Après avoir arrêté le courant trop élevé, le supraconducteur retourne évidemment au bout de quelques secondes à l'état supraconducteur et le fonctionnement normal peut être repris. Un avantage particulier du limiteur de courant est sa conception compacte, de telle sorte qu'il est adapté aussi bien à l'équipement initial de réseaux d'énergie qu'au rééquipement de réseaux existants.
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 true EP2532016A1 (fr) 2012-12-12
EP2532016B1 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)

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DE102012218261B3 (de) 2012-10-05 2013-11-14 Bruker Hts Gmbh Induktiver Fehlerstrombegrenzer mit geteilter Primärspulenanordnung
DE102012218260B3 (de) 2012-10-05 2013-12-05 Bruker Hts Gmbh Induktiver Fehlerstrombegrenzer mit geteilter Sekundärspulenanordnung
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
DE102016213753A1 (de) 2016-07-27 2018-02-01 Siemens Aktiengesellschaft Gewickelte Leiteranordnung mit Abstandselement
DE102016213755A1 (de) 2016-07-27 2018-02-01 Siemens Aktiengesellschaft Wicklungsträger für eine elektrische Spulenwicklung
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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US3256464A (en) * 1963-05-13 1966-06-14 Nat Res Corp Process for operating plural superconductive coils
DE1563335B2 (de) * 1966-04-26 1971-04-29 Siemens AG, 1000 Berlin u 8000 München Spule mit veraenderlicher induktivitaet als strombegrenzungs einrichtung fuer energieuebertragungsanlagen
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DE1932379C3 (de) * 1969-06-26 1978-05-11 Siemens Ag, 1000 Berlin Und 8000 Muenchen Spule mit veränderlicher Induktivität als Strombegrenzungseinrichtung für Energieübertragungsanlagen
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Also Published As

Publication number Publication date
DE102010007087A1 (de) 2011-08-11
US20120306606A1 (en) 2012-12-06
JP5907894B2 (ja) 2016-04-26
WO2011095199A1 (fr) 2011-08-11
JP2013519219A (ja) 2013-05-23
US9583258B2 (en) 2017-02-28
EP2532016B1 (fr) 2015-08-26

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