CN101354931B - 超导电缆 - Google Patents
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B12/00—Superconductive or hyperconductive conductors, cables, or transmission lines
- H01B12/02—Superconductive or hyperconductive conductors, cables, or transmission lines characterised by their form
- H01B12/08—Stranded or braided wires
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B12/00—Superconductive or hyperconductive conductors, cables, or transmission lines
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B12/00—Superconductive or hyperconductive conductors, cables, or transmission lines
- H01B12/16—Superconductive or hyperconductive conductors, cables, or transmission lines characterised by cooling
-
- 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
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S505/00—Superconductor technology: apparatus, material, process
- Y10S505/825—Apparatus per se, device per se, or process of making or operating same
- Y10S505/873—Active solid-state device
- Y10S505/875—Combined with housing and cryogenic fluid cooling
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- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S505/00—Superconductor technology: apparatus, material, process
- Y10S505/825—Apparatus per se, device per se, or process of making or operating same
- Y10S505/888—Refrigeration
- Y10S505/894—Cyclic cryogenic system, e.g. sterling, gifford-mcmahon
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Abstract
提供一种超导电缆,其包括由超导电线组成的导体。该导体(L)被设计为绞合导体设计,其中电线(1)以在约5×D和约20×D之间的预定间距长度(S)绞合在一起,其中D是绞合导体的直径。
Description
技术领域
本发明涉及一种超导电缆,其包括由超导电线(DE19719738B4)所组成的导体。
背景技术
超导电缆具有至少一根由特殊材料制成的电导体,其在足够低的温度下进入超导状态。相应构造的导体的电阻趋近于零。合适的材料例如是YBCO(钇-钡-铜氧化物)或者BiSSCO(铋-锶-钙-铜氧化物)。例如,使得这些材料达到超导状态足够低的温度在4K和110K之间。适当的制冷剂例如氮,氦和氢或这些物质的混合物,分别处于气态或液态。冷绝缘和热绝缘超导电缆是已知的。
在冷绝缘超导电缆中,导体由绝缘材料层构成的介质所包围,其中液态制冷剂作为介质中的注入媒介而出现。这样的电缆以其中高电压范围可以传输高功率而著名。例如,其由如作为内导体的导体和与该内导体同轴布置的屏蔽或与回程导体所组成,回程导体与内导体隔开并通过介质(绝缘体)保持分开。例如,这种导体的单个超导元件由包含诸如YBCO或BiSCCO的超导材料带所组成,这些带以较长的间距在相互绝缘的同心层中的支撑体周围紧紧地缠绕在一起(EP0830694B1)。相应的电缆被低温保持器所封闭,该低温保持器承载制冷剂并且由通过真空绝缘而相互绝缘的两个同心金属管所组成。
热绝缘超导电缆具有直接排列在这样的承载制冷剂的低温保持器中的导体。介质和屏蔽或者回程导体被套在低温保持器上。还是在这样的电缆中,导体由相互绝缘的同心带层所组成,该带包含紧密排列在一起的超导材料。
导体的这种结构也被运用于根据DE19719738B4的已知的超导AC电缆,其在上述介绍中被提及。这种电缆的导体由氧化超导材料制成的圆形电线所组成。该电线被布置成围绕管的许多同心层。这些层相互绝缘。单个电线层之间绝缘夹层用于改善导体中的电流分布。然而,它们引起材料和制造该导体的额外费用。而且导体因此而具有相对大的直径,从而也造成电缆的尺寸更大。
本发明的目的在于构造一种如上述介绍中提出的超导电缆,使得其更易于制造且结构简单,直径更小。
根据本发明实现了所述目的,其中所述导体被设计为绞合导体,其中电线以处于约5×D和约20×D之间的预定间距绞合在一起,这里D是绞合导体的直径。
这种电缆的导体可以通过采用传统机械生产高压电缆或大电流电缆的常规技术来制造。该导体不需要中央芯部元件或任何绝缘层。这种导体几何结构非常简单并且具有相应小的直径。通过在指定的范围内遵从具体的绞合间距长度,该导体进一步确保良好的电流分布,并具有相应低的AC损耗和超导材料的良好的应用,甚至不需要使用绝缘夹层。该导体可被用于具有自身位于导体上的已知结构的冷绝缘或热绝缘超导电缆。屏蔽或回程导体可同样构造为具有用作导体的电线。然后可再一次使用常规机械和制造技术。
附图说明
本发明的主题的示例性实施例被在附图中显示。
附图1和2示出了可用于根据本发明的电缆中的导体在两个不同的实施例中的横截面。
附图3以非常简要的图示出了根据附图1的导体的侧视图。
附图4和5示出了具有根据附图1的导体的两个不同结构的电缆的横截面。
具体实施方式
附图1描绘了设计为绞合导体的电导体L的横截面,其由许多超导电线1绞合在一起所组成。电线1可以具有对应于图形表示的圆形横截面,但也可以具有多边形的横截面。它们被根据附图3以预定的间距长度S绞合在一起,其中S值位于与导体L的直径D相关的两个限值之间。这些限值是以约5D作为下限和以约20D作为上限。如上所述,这些导体L可以采用电缆技术中常用的机械和制造技术来生产。
另外,电线1也可以采用位于μm范围内的非常薄的漆层覆盖。用由这样的电线构成的导体L,电流分布可以进一步改善并且AC损耗可以被进一步降低。
根据附图2,例如导体L也可以被构造成三部分2,3,和4,其中超导电线1分别以指定的间距长度S绞合在一起。部分2,3,和4通过例如复写纸所构成的薄绝缘层相互适当的隔开。它们同样绞合在一起。导体L的这样的结构也使得电流的分布进一步改善并且AC损耗进一步降低。导体L也可以被构造成多于三个部分。其也可以仅由两个部分组成。
电线1有利地包含YBCO作为其超导材料的。例如相应电线具有加长的具有圆形或多边形横截面的金属支承体,围绕金属支承体的网状金属层包围成YBCO层的基层。例如包含YBCO层的电线1的制造过程如下:
作为带提供,并通过预处理已经结构化的金属基层被径向缠绕在所述支承体周围以形成槽形管。例如,该带或基层由镍,铜或铁或合金组成。例如,在预处理步骤中已经赋予其双轴结构。然后,将这种纵向延伸的槽形管边缘在焊接装置中焊接以使得其通过焊缝形成封闭的管。然后在拉伸装置中使该封闭管尺寸减小,直到其支撑在支承体上。以这种方式制造的元件随后都用YBCO材料层环绕。陶瓷材料,例如锆酸镧,也可以预先选择敷在该管上,尤其是在其通过拉伸收缩之前或之后。相应的覆盖方法是已知的。为了实现超导特性,覆盖了超导材料YBCO的电线1最后被进行热处理。对此,优选的退火温度从700℃到850℃。
例如,根据附图1或2具有导体L的电缆可以被构造成为根据附图4的单相冷绝缘超导电缆。在整个导体L上,例如介质5由若干纸层或其它合适的绝缘体所组成。导体L和介质5一起形成电缆的芯部。该芯部被屏蔽层或回程导体6所封闭。其由至少一层具有良好导电性的电线组成,该电线也可以是超导的并与电线1一样构造。以这种方式装配的电缆被由两个同心金属管7和8所组成的低温保持器K所封闭,这两个金属管通过真空绝缘的环形空间9相互间隔。为了冷却超导电缆,制冷剂被注入低温保持器K中,并还作为注入媒介渗入介质5中。由导体L和介质5组成的三个芯部也可设置在低温保持器K中,其构成用于三相系统的三相超导电缆。
根据附图5,导体L也可以直接设置在低温保持器K中,对于其结构,对于根据附图4的低温保持器K也适用。在该电缆实施例中,位于低温保持器K之上,存在介质10和屏蔽或回程导体11。后者的结构可与根据附图4的屏蔽或回程导体6的结构一致。
Claims (5)
1.一种超导电缆,包括由超导电线组成的导体,其被用于引导冷却介质的低温保持器所封闭,所述低温保持器包括两个同心的金属管,两个同心的金属管以环形空间被被此相互分开,所述环形空间中设置有真空绝缘,其特征在于,所述导体是绞合导体,包括以在5×D和20×D之间的预定长度绞合在一起的多条电线,其中D是绞合导体的直径,并且其中所述导体被分成几个部分,所述部分被薄的绝缘层相互隔开。
2.根据权利要求1所述的电缆,其特征在于导体(L)被介质(5)所封闭,在介质(5)周围具有由超导电线所组成的屏蔽或回程导体(6)。
3.根据权利要求1所述的电缆,其特征在于所述电线(1)具有圆形的横截面。
4.根据权利要求1所述的电缆,其特征在于所述电线(1)具有多边形的横截面。
5.根据权利要求1所述的电缆,其特征在于所述电线(1)涂覆有位于μm范围内的薄的漆层。
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Application Number | Priority Date | Filing Date | Title |
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EP07290891.6A EP2017856B1 (de) | 2007-07-17 | 2007-07-17 | Supraleitfähiges elektrisches Kabel |
EP07290891.6 | 2007-07-17 |
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CN101354931A CN101354931A (zh) | 2009-01-28 |
CN101354931B true CN101354931B (zh) | 2012-12-26 |
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US (1) | US8112135B2 (zh) |
EP (1) | EP2017856B1 (zh) |
JP (1) | JP5459992B2 (zh) |
KR (1) | KR101439976B1 (zh) |
CN (1) | CN101354931B (zh) |
AU (1) | AU2008202931A1 (zh) |
CA (1) | CA2637583A1 (zh) |
ES (1) | ES2524924T3 (zh) |
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DK1916720T3 (da) * | 2006-10-27 | 2009-04-14 | Nexans | Fremgangsmåde til fremstilling af en elektrisk leder med superledningsevne |
EP2360702B1 (de) * | 2009-11-30 | 2012-08-29 | Nexans | Supraleitfähiges Kabel |
EP2387043A1 (de) * | 2010-05-10 | 2011-11-16 | Nexans | Übertragungssystem mit einem supraleitfähigen Kabel |
EP2426676A1 (de) * | 2010-09-02 | 2012-03-07 | Nexans | Anordnung mit mindestens einem supraleitfähigen Kabel |
DK2509080T3 (en) * | 2011-04-04 | 2015-08-03 | Nexans | Superconducting cable |
EP2634779B1 (de) * | 2012-03-01 | 2017-06-14 | Nexans | System mit einem dreiphasigen supraleitfähigen elektrischen Übertragungselement |
US20140037956A1 (en) * | 2012-08-01 | 2014-02-06 | Umesh Kumar Sopory | High voltage high temperature heater cables, connectors, and insulations |
CN103779015A (zh) * | 2014-01-02 | 2014-05-07 | 上海大学 | 一种输电架空导线用纤维复合绳芯的制备方法 |
US10068683B1 (en) | 2014-06-06 | 2018-09-04 | Southwire Company, Llc | Rare earth materials as coating compositions for conductors |
CN106413933A (zh) * | 2014-06-06 | 2017-02-15 | 皇家飞利浦有限公司 | 利兹线的制造 |
KR20230129393A (ko) | 2020-11-18 | 2023-09-08 | 베어, 인크. | 초전도 전력 전송 선로들의 냉각을 위한 시스템들 및 방법들 |
KR20230129392A (ko) | 2020-11-18 | 2023-09-08 | 베어, 인크. | 현수형 또는 지하 전송 선로들을 위한 전도체 시스템들 |
KR20230129009A (ko) | 2020-11-18 | 2023-09-05 | 베어, 인크. | 현수형 초전도 전송 선로들 |
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JPS63241807A (ja) * | 1987-03-27 | 1988-10-07 | Sumitomo Electric Ind Ltd | 高忠実度信号伝送用電線 |
JPH06139839A (ja) * | 1992-10-29 | 1994-05-20 | Kazuo Funaki | 交流超電導ケーブル |
JPH06187849A (ja) * | 1992-12-21 | 1994-07-08 | Furukawa Electric Co Ltd:The | 高温超電導ケーブル |
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JP3933253B2 (ja) | 1996-05-10 | 2007-06-20 | 古河電気工業株式会社 | 交流用酸化物超電導線材及びケーブル |
JPH1092235A (ja) * | 1996-09-12 | 1998-04-10 | Sumitomo Electric Ind Ltd | 交流用超電導導体 |
JPH10312718A (ja) * | 1997-05-12 | 1998-11-24 | Sumitomo Electric Ind Ltd | 超電導ケーブル導体 |
BR9916545A (pt) * | 1998-12-24 | 2001-09-04 | Pirelli Cavi E Sistemi Spa | Cabo supercondutor, elemento supercondutor, e, processo para limitar as tensões de tração ao longo de uma direção longitudinal |
JP4542240B2 (ja) * | 2000-07-13 | 2010-09-08 | 中部電力株式会社 | 酸化物超電導撚線導体 |
US7358435B2 (en) * | 2001-12-17 | 2008-04-15 | Prysmian Cavi E Sistemi Energia S.R.L. | Electric power transport system comprising a cold dielectric superconducting cable |
JP4482851B2 (ja) * | 2001-12-18 | 2010-06-16 | 住友電気工業株式会社 | 直流超電導ケーブル |
JP4399763B2 (ja) * | 2003-02-28 | 2010-01-20 | 住友電気工業株式会社 | 直流用超電導ケーブル線路 |
JP4191544B2 (ja) * | 2003-06-19 | 2008-12-03 | 住友電気工業株式会社 | 超電導ケーブルのジョイント構造 |
-
2007
- 2007-07-17 EP EP07290891.6A patent/EP2017856B1/de not_active Not-in-force
- 2007-07-17 ES ES07290891.6T patent/ES2524924T3/es active Active
-
2008
- 2008-06-09 KR KR1020080053892A patent/KR101439976B1/ko not_active IP Right Cessation
- 2008-06-26 US US12/215,388 patent/US8112135B2/en not_active Expired - Fee Related
- 2008-07-02 AU AU2008202931A patent/AU2008202931A1/en not_active Abandoned
- 2008-07-04 JP JP2008176056A patent/JP5459992B2/ja not_active Expired - Fee Related
- 2008-07-15 CA CA002637583A patent/CA2637583A1/en not_active Abandoned
- 2008-07-17 CN CN200810215494XA patent/CN101354931B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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CN101354931A (zh) | 2009-01-28 |
KR101439976B1 (ko) | 2014-09-12 |
US8112135B2 (en) | 2012-02-07 |
EP2017856A1 (de) | 2009-01-21 |
ES2524924T3 (es) | 2014-12-15 |
JP2009026755A (ja) | 2009-02-05 |
AU2008202931A1 (en) | 2009-02-05 |
EP2017856B1 (de) | 2014-09-03 |
JP5459992B2 (ja) | 2014-04-02 |
US20090069188A1 (en) | 2009-03-12 |
KR20090008120A (ko) | 2009-01-21 |
CA2637583A1 (en) | 2009-01-17 |
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