JPH01304608A - Superconductive transmission line - Google Patents
Superconductive transmission lineInfo
- Publication number
- JPH01304608A JPH01304608A JP63132785A JP13278588A JPH01304608A JP H01304608 A JPH01304608 A JP H01304608A JP 63132785 A JP63132785 A JP 63132785A JP 13278588 A JP13278588 A JP 13278588A JP H01304608 A JPH01304608 A JP H01304608A
- Authority
- JP
- Japan
- Prior art keywords
- superconductive
- conductor
- transmission line
- copper
- ceramic
- 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.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 12
- 239000004020 conductor Substances 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 abstract description 10
- 239000002184 metal Substances 0.000 abstract description 10
- 239000000919 ceramic Substances 0.000 abstract description 8
- 239000010409 thin film Substances 0.000 abstract description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 6
- OSOKRZIXBNTTJX-UHFFFAOYSA-N [O].[Ca].[Cu].[Sr].[Bi] Chemical compound [O].[Ca].[Cu].[Sr].[Bi] OSOKRZIXBNTTJX-UHFFFAOYSA-N 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 4
- 239000002826 coolant Substances 0.000 abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 3
- 239000011810 insulating material Substances 0.000 abstract description 2
- 238000003466 welding Methods 0.000 abstract description 2
- 229910010293 ceramic material Inorganic materials 0.000 abstract 2
- BTGZYWWSOPEHMM-UHFFFAOYSA-N [O].[Cu].[Y].[Ba] Chemical compound [O].[Cu].[Y].[Ba] BTGZYWWSOPEHMM-UHFFFAOYSA-N 0.000 abstract 1
- 239000007769 metal material Substances 0.000 abstract 1
- 239000002887 superconductor Substances 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- 239000012212 insulator Substances 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 239000001307 helium Substances 0.000 description 3
- 229910052734 helium Inorganic materials 0.000 description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052738 indium Inorganic materials 0.000 description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- RFDFPOGXFHHCII-UHFFFAOYSA-N [Cu].[Nb] Chemical compound [Cu].[Nb] RFDFPOGXFHHCII-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- KJSMVPYGGLPWOE-UHFFFAOYSA-N niobium tin Chemical compound [Nb].[Sn] KJSMVPYGGLPWOE-UHFFFAOYSA-N 0.000 description 1
- 229910000657 niobium-tin Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Superconductors And Manufacturing Methods Therefor (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、超な導体を用いた送電路に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a power transmission path using a superconductor.
第２図は、例えば、電気学会放電研究会資料ＥＤ−８７
−９に示された、従来の超電導送電路（ケーブル）を示
し、図において、（１）は銅パイプ、（２）は遮蔽テー
プ、（３）は絶縁テープ、（４）はニオブ−錫合金など
の超電導平角線、（５）は半導電テープ、（６）は内部
半導電層、（７）はポリエチレン絶縁ＨＡ 、 （８１
は外部半導電層、（９）はワイヤーシールド、（１０）
はポリエチレンコルゲートパイプ、（１１）はスーパー
インシュレーション、（１２）はアルミニウムコルケー
トパイプである。さらに、ポリエチレンコルゲートパイ
プ（１０）より内側には液化ヘリウムが充填されている
。Figure 2 shows, for example, the Institute of Electrical Engineers of Japan electrical discharge study group material ED-87.
-9 shows a conventional superconducting power transmission line (cable), in which (1) is a copper pipe, (2) is a shielding tape, (3) is an insulating tape, and (4) is a niobium-tin alloy. (5) is a semiconducting tape, (6) is an internal semiconducting layer, (7) is a polyethylene insulated HA, (81
is the outer semiconducting layer, (9) is the wire shield, (10)
is a polyethylene corrugated pipe, (11) is a super insulation pipe, and (12) is an aluminum corrugated pipe. Furthermore, the inside of the polyethylene corrugated pipe (10) is filled with liquefied helium.
以上の、構成により、ポリエチレン絶縁層（７）で絶縁
された銅パイプ（１）に巻かれた超電導平角線（４）に
電流が流れる。最外部の保護用のアルミニウムコルゲー
トパイプ（１２）の内側のスーパーインシュレーション
（１１）により熱絶縁がされ、内部は液化ヘリウムによ
り冷却されているので超電導平角線（４）は抵抗がＯの
超電導状態になり、大電流においても損失の少ない送電
が可能となっている。With the above configuration, current flows through the superconducting rectangular wire (4) wound around the copper pipe (1) insulated with the polyethylene insulating layer (7). Thermal insulation is provided by the super insulation (11) inside the outermost protective aluminum corrugated pipe (12), and the inside is cooled by liquefied helium, so the superconducting rectangular wire (4) is in a superconducting state with a resistance of O. This makes it possible to transmit power with little loss even at large currents.
なお、半導ｍ層（６） 、 （８１などは良好な耐電圧
性能を得るのに役立っている。Note that the semiconductor m-layers (6), (81, etc.) are useful for obtaining good withstand voltage performance.
従来の超電導送電路は以上のように構成されており、超
α導体にニオブ−銅などの平角線をラセン状に巻いて用
い、液体ヘリウム冷却をした構造であったが、最近見出
された液体窒素温度で超電導を示す、イツトリウム−バ
リウム−ＩＩ −ｅ 素の化合物や、ビスマス−ストロ
ンチウム−カルシウム−銅酸化物の化合物などのセラミ
ック系の超電導材を用いる場合、平角線への加工が難し
く、前記の構造を採り難く、また、前記構造は複雑であ
るという問題があった。Conventional superconducting power transmission lines are constructed as described above, using rectangular wires such as niobium-copper wound around a super-alpha conductor in a spiral shape, and cooled with liquid helium. When using ceramic superconducting materials such as yttrium-barium-II-e compounds and bismuth-strontium-calcium-copper oxide compounds, which exhibit superconductivity at liquid nitrogen temperatures, it is difficult to process them into rectangular wires. There were problems in that it was difficult to adopt the above structure, and the structure was complicated.
この発明は、上記のような問題点を解消するためてなさ
れたもので、セラミック系の超電導体を使用するのに適
し、構造の単純な送電路を得ることを目的としている。The present invention has been made to solve the above-mentioned problems, and aims to provide a power transmission path that is suitable for using ceramic superconductors and has a simple structure.
この発明に係る超電導送電路は、セラミックスあるいは
金属の管の端部を含む表面に、超電導体の薄膜を付着さ
せ、これら超電導体付着の管を、金具を用いて端部を圧
接して接続して長尺導体としたものである。A superconducting power transmission line according to the present invention involves attaching a superconductor thin film to the surface of ceramic or metal tubes, including their ends, and connecting these superconductor-attached tubes by pressing their ends together using metal fittings. This is a long conductor.
この発明においては、長尺導体は、間隔を置いて硬質の
固体絶縁物で絶縁媒体あるいは冷却媒体を充填した外管
中に保持されるが、超電導薄膜が導体表面に付着されて
いるので、交流の場合も損失の少ない送電が可能であり
、導体を処々剛性の高い絶縁物で支持するだけの簡単な
構造で使用できる。In this invention, a long conductor is held in an outer tube filled with a hard solid insulator and an insulating medium or a cooling medium at intervals, and since a superconducting thin film is attached to the surface of the conductor, It is also possible to transmit power with little loss, and it can be used with a simple structure where the conductor is supported by highly rigid insulators in places.
以下、第１図によりこの発明の一実施例を説明する。図
において、（１３）はセラミックスや金属などで作られ
た管体であり、その表面には（１４）で示す超電導薄膜
、例えばイツトリウム−バリウム−ｍ−酸素やビスマス
−ストロンチウム−カルシウム−銅−酸素などの化合物
よりなる膜が焼付けにより付着されており導体（１５）
を形成している。（１６）は接続金具であり、他方の接
続金具（１７）と−組になりポル） （１８”ｌで締付
けられるようになっている。（１９）は引掛はリングで
あり、導体（１５）の端部の先太のテーパ部に内側が沿
うよう作られた、断面形状がくさび形のリングであり２
つ割りとなっていて接続金具（ｌｉ、（１７）それぞれ
と導体（１５）との間に挿入され、締付時の引掛り作用
をする。（２０）はインジウムなどの金属薄板で、接触
状況を良くし導電性を良くする。An embodiment of the present invention will be described below with reference to FIG. In the figure, (13) is a tube made of ceramics or metal, and on its surface is a superconducting thin film shown in (14), such as yttrium-barium-m-oxygen, bismuth-strontium-calcium-copper-oxygen. A film made of a compound such as is attached by baking and is a conductor (15).
is formed. (16) is a connecting fitting, which is paired with the other connecting fitting (17) and can be tightened with 18"l. (19) is a ring, and the hook is a ring, and the conductor (15) It is a ring with a wedge-shaped cross section, the inside of which follows the tapered part of the end of the ring.
It is inserted between the connecting fittings (li, (17)) and the conductor (15), and acts as a hook when tightening. (20) is a thin metal plate made of indium or the like, and the contact condition to improve conductivity.
（２１）は固体絶縁物で、ガラスせんい入りのエポキシ
樹脂など剛性の高い絶縁物が用いられている。(21) is a solid insulator, and a highly rigid insulator such as epoxy resin containing glass fibers is used.
（２２）は絶縁物あるいは半導体よりなる管で、処々に
熱伸縮可能なコルゲート状の部分（ｒ）を持っている。(22) is a tube made of an insulating material or a semiconductor, and has corrugate-like parts (r) that can be expanded and contracted by heat here and there.
（２３）は非磁性の金属などよりなる外被で、コルゲー
ト状の部分子ｓ）を持ち熱伸縮を可能としている。これ
らの管（２２）や（２３）は、現地据付のとぎ、（至）
、（ｎ）で示す部位などで気密に接続し長尺化する。管
（２２）の内部には絶縁媒体あるいは冷却を要する場合
には絶縁媒体を兼ねた冷却媒体（２４）、例えば液体窒
素が充填され、この外側（２５）には、ａ常、スーパー
インシュレーションと呼ばれる熱絶縁材を層材に設け、
真空度を上げた構造の熱絶縁部が形成され、内部の導体
は超電導状態に保たれている。(23) is an outer covering made of non-magnetic metal, etc., which has a corrugated moiety s) and is capable of thermal expansion and contraction. These pipes (22) and (23) are installed on-site.
, (n) and the like to make the length longer. The inside of the tube (22) is filled with an insulating medium or, if cooling is required, a cooling medium (24) that also serves as an insulating medium, such as liquid nitrogen, and the outside (25) is usually filled with super insulation. The layer material is provided with a thermal insulation material called
A thermally insulating section is formed with a structure that increases the degree of vacuum, and the internal conductor is maintained in a superconducting state.
以上の構成により、超電導体が薄膜（１４）であるため
、単位断面積当り大きな直流の流れる良好な超電導層が
形成され、さらに交流を流した場合も損失は殆んどない
。また、超電導層（１４）は薄くとも径の大きい管体（
１３）上にあるので、電流通路は相当大きくとれ、大１
を流を流すことができる。With the above configuration, since the superconductor is a thin film (14), a good superconducting layer is formed in which a large direct current flows per unit cross-sectional area, and there is almost no loss even when an alternating current is passed. In addition, the superconducting layer (14) is thin but has a large diameter tube (
13) Since it is located at the top, the current path can be made quite large.
can flow.
マタ、ビスマス−ストロンチウム−カルシウム−銅−酸
素の化合物などのセラミック系の超電導体は固くもろい
ので線材やテープに成形することは難しいが、管体（１
３）のセラミックス表面や金属面に蒸着や溶融吹付、焼
付けなどで付着させることは割合容易である。さらに、
この導体（１５）は、セラミックスや金属の管体（１３
）や棒体な芯材に用いるので強度が犬ぎく、導体（１５
）は相当能れた数メートル間隔で支えればよく、支持絶
縁物が少なくてすむ。Ceramic superconductors such as bismuth-strontium-calcium-copper-oxygen compounds are hard and brittle and difficult to form into wire or tape.
3) It is relatively easy to attach it to ceramic surfaces or metal surfaces by vapor deposition, melt spraying, baking, etc. moreover,
This conductor (15) is a ceramic or metal tube (13).
) and rod core material, so the strength is extremely high, and the conductor (15
) need only be supported at intervals of several meters, requiring less supporting insulation.
導体（１５）の接続は、接続面の平面度を十分量した管
体や棒体に超電導体薄膜（１４）を−様に付け、インジ
ウムなどの金属を挾みこむなどして、接続金具（１６）
、（１７）を用いてボルト（１Ｂ）で締付ける構造とし
ているので、現地で導体（１５）をボルト締結で長尺化
しながら、管（２２）や外被（２３）を気密接合するよ
うにすれば、このような剛性の高い送電路でも輸送可能
単位で輸送し、長尺のものが構成可能である。なお、曲
り部は予め曲りだ導体（１５）や、管（２２）や、外被
（２３）を用いればよい。To connect the conductor (15), attach the superconductor thin film (14) to a tube or rod whose connection surface has a sufficient flatness, insert a metal such as indium, etc., and connect the connection fitting (16). )
, (17) and tightened with bolts (1B), the conductor (15) can be made longer by bolting at the site, and the pipe (22) and jacket (23) can be airtightly joined. For example, even such a highly rigid power transmission line can be transported in transportable units, and a long one can be constructed. Incidentally, for the bent portion, a bent conductor (15), a pipe (22), or a jacket (23) may be used in advance.
以上のように、この発明によれば、超准導体を剛性の大
きい筒状または棒状の構造物の端部を含めて表面に薄膜
として付着させて導体を作り、接続金具により端部を互
に圧接して接続して長尺の導体としたので、単純な構造
で、経済的であり、大電流の送電が可能で、しかも、損
失の殆どない送電路を得ることができる。As described above, according to the present invention, a conductor is made by attaching a superquasiconductor as a thin film to the surface of a highly rigid cylindrical or rod-shaped structure, including the ends, and the ends are connected to each other using a connecting fitting. Since the long conductors are connected by press-welding, it is possible to obtain a power transmission path that has a simple structure, is economical, can transmit large currents, and has almost no loss.
第１図はこの発明の一実施例の縦断面図、第２図は従来
の超電導送電路の一部断面斜視図である。
（１３）・拳筒状の構造体、（１４）・・超電導薄膜、
（１５）・・導体、（１６）、（１７）・・接続金具。
なお、各図中、同一符号は同−又は相当部分を示す。FIG. 1 is a longitudinal sectional view of an embodiment of the present invention, and FIG. 2 is a partially sectional perspective view of a conventional superconducting power transmission line. (13)・Fist-shaped structure, (14)・Superconducting thin film,
(15)...Conductor, (16), (17)...Connection fittings. In each figure, the same reference numerals indicate the same or corresponding parts.
Claims (1)
て超電導材料の薄い層を付着させてなる導体相互の端部
を、接続金具により互に圧接接続して形成した長尺導体
を備えてなる超電導送電路。A long conductor is formed by attaching a thin layer of superconducting material to the surface of either a cylindrical or rod-shaped structure, including its ends, and connecting the ends of the conductor to each other by pressure contact with a connecting fitting. A superconducting power transmission line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63132785A JPH01304608A (en) | 1988-06-01 | 1988-06-01 | Superconductive transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63132785A JPH01304608A (en) | 1988-06-01 | 1988-06-01 | Superconductive transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01304608A true JPH01304608A (en) | 1989-12-08 |
Family
ID=15089487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63132785A Pending JPH01304608A (en) | 1988-06-01 | 1988-06-01 | Superconductive transmission line |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01304608A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002015629A (en) * | 2000-06-30 | 2002-01-18 | Fujikura Ltd | Superconductive cable |
| JP2011028936A (en) * | 2009-07-23 | 2011-02-10 | Sumitomo Electric Ind Ltd | Heat insulating tube |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62123669A (en) * | 1985-11-25 | 1987-06-04 | 株式会社東芝 | Joint of superconducting wire |
-
1988
- 1988-06-01 JP JP63132785A patent/JPH01304608A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62123669A (en) * | 1985-11-25 | 1987-06-04 | 株式会社東芝 | Joint of superconducting wire |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002015629A (en) * | 2000-06-30 | 2002-01-18 | Fujikura Ltd | Superconductive cable |
| JP4722258B2 (en) * | 2000-06-30 | 2011-07-13 | 株式会社フジクラ | Superconducting cable |
| JP2011028936A (en) * | 2009-07-23 | 2011-02-10 | Sumitomo Electric Ind Ltd | Heat insulating tube |
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