JPH0287423A - Ac superconductor wire - Google Patents
Ac superconductor wireInfo
- Publication number
- JPH0287423A JPH0287423A JP63238287A JP23828788A JPH0287423A JP H0287423 A JPH0287423 A JP H0287423A JP 63238287 A JP63238287 A JP 63238287A JP 23828788 A JP23828788 A JP 23828788A JP H0287423 A JPH0287423 A JP H0287423A
- Authority
- JP
- Japan
- Prior art keywords
- wire
- coil
- superconducting
- spacer
- spacers
- 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
Links
- 239000002887 superconductor Substances 0.000 title abstract description 3
- 125000006850 spacer group Chemical group 0.000 claims abstract description 24
- 238000010791 quenching Methods 0.000 abstract description 4
- 230000000171 quenching effect Effects 0.000 abstract description 3
- 229910002482 Cu–Ni Inorganic materials 0.000 abstract description 2
- 239000000956 alloy Substances 0.000 abstract description 2
- 229910045601 alloy Inorganic materials 0.000 abstract description 2
- 239000011159 matrix material Substances 0.000 abstract description 2
- 229920005989 resin Polymers 0.000 description 9
- 239000011347 resin Substances 0.000 description 9
- 239000003507 refrigerant Substances 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- 239000003822 epoxy resin Substances 0.000 description 4
- 229920000647 polyepoxide Polymers 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method 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〕 本発明は交流超電導線に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to an AC superconducting wire.
従来の交流超電導線としては、例えば第４図に示すよう
に、６本の超電導素線（＋１を銅線（２）のまわりに撚
り合せた成形撚線（３）を第１ケーブルとし、この第１
ケーブルを銅線（４）のまわりに６本撚り合せて、その
外側にカプトンテープ（５）を巻いた成形撚線（６）を
第２ケーブルとし、この第２ケーブルを１０本撚り合わ
せて平角形多重撚線（７）としたものがある。このよう
にして製作された交流超電導線（８）は、例えば第５図
に示すように、スペーサ（９）を巻込んでＳ線され、パ
ンケーキ型のコイル００を形成する。As a conventional AC superconducting wire, for example, as shown in Fig. 4, the first cable is a formed stranded wire (3) in which six superconducting wires (+1) are twisted around a copper wire (2), and this 1st
Six cables are twisted around a copper wire (4), and a formed stranded wire (6) with Kapton tape (5) wrapped around it is used as a second cable, and ten second cables are twisted together and flattened. There is a type of square multi-stranded wire (7). The AC superconducting wire (8) produced in this way is wound with a spacer (9) and made into an S wire, as shown in FIG. 5, for example, to form a pancake-shaped coil 00.
近年、超電導の交流またはパルス的応用が注目されてい
るが、この場合には、超電導コイルに新たな技術的問題
が生じる。すなわち、交流使用下における線材の動きを
いかに押さえるか、また、コイル中に発生する交流損失
による熱をいかに取り去るかという問題である。In recent years, alternating current or pulsed applications of superconductivity have attracted attention, but in this case new technical problems arise for superconducting coils. That is, the problem is how to suppress the movement of the wire during use of AC, and how to remove heat due to AC loss generated in the coil.
従来の交流超電導線では、交流運転下において線材が運
動をおこして機械的熱損失を生じ、実用的な使用がほと
んど−できない、そこで、エポキシなどの樹脂含浸をし
て線材の運動を防止する手段がとられている。しかしな
がら、カプトンなどの隔離テープがラセン状に連続して
巻かれ、樹脂が充満すると、樹脂含浸体により線材と冷
媒の接触が妨げられ、線材の冷却効率が悪くなるという
問題が生ずる。In conventional AC superconducting wires, the wires move during AC operation, causing mechanical heat loss, making them almost impossible to use for practical purposes.Therefore, impregnating them with resin such as epoxy is a way to prevent the wires from moving. is taken. However, when isolation tape such as Kapton is wound continuously in a helical shape and filled with resin, a problem arises in that the resin-impregnated body prevents contact between the wire and the refrigerant, resulting in poor cooling efficiency of the wire.
また、交流超電導線をコイルに巻く場合、従来のように
スペーサーを用いる巻線方法を用いれば、比較的粘度の
低い樹脂を含浸することは可能であるが、巻線作業性が
きわめて悪く、工業的な実用性が少ない。特に、大型コ
イルになると、スペーサを固定するためのコイル設計も
複雑になり、実用化が困難になるという問題が生じる。In addition, when winding AC superconducting wire into a coil, it is possible to impregnate it with a relatively low viscosity resin by using the conventional winding method using a spacer, but the winding workability is extremely poor, making it difficult for industrial use. It has little practicality. In particular, when a large coil is used, the coil design for fixing the spacer becomes complicated, making it difficult to put it into practical use.
本発明は以上のような点にかんがみてなされたもので、
その目的とするところは、冷却性能がよく、かつ、コイ
ル組立作業性のよい交流超電導線を提供することにある
。The present invention has been made in view of the above points.
The purpose is to provide an AC superconducting wire with good cooling performance and good coil assembly workability.
〔課題を解決するための手段と作用〕
上記目的を達成するために本発明によれば、超電導線の
成形撚線に、その長手方向に所望の間隔をもってスペー
サが具備されていることを特徴とする交流超電導線が提
供される。[Means and effects for solving the problem] In order to achieve the above object, the present invention is characterized in that the formed stranded wire of the superconducting wire is provided with spacers at desired intervals in the longitudinal direction thereof. An AC superconducting wire is provided.
上記のような構造の交流超電導線では、交流印加時の超
電導素線の動きは成形撚線の外周を締め付けるように取
付けられたスペーサにより阻止されている。また、スペ
ーサは所望の間隔で交流超電導線に予め取付けられてい
るので、この交流超電導線によるコイル巻き作業は比較
的容易になる。In the AC superconducting wire having the above structure, movement of the superconducting strands when AC is applied is prevented by a spacer attached to tighten the outer periphery of the formed stranded wire. Further, since the spacers are attached to the AC superconducting wire in advance at desired intervals, the coil winding operation using the AC superconducting wire is relatively easy.
さらに、スペーサに溝を設けると冷媒の流通がよくなり
、穴を設けると冷媒と超電導素線が接触するため、本発
明の交流超電導線では交流損失による発熱が効率よく取
除かれる。Furthermore, the provision of grooves in the spacer improves the circulation of the refrigerant, and the provision of holes allows the refrigerant to contact the superconducting strands, so that in the AC superconducting wire of the present invention, heat generation due to AC loss can be efficiently removed.
〔実施例］ 以下図面に示した実施例に基づいて本発明を説明する。〔Example] The present invention will be described below based on embodiments shown in the drawings.
第１図は本発明にかかる交流超電導線の一実施例の説明
図であり、ＮｂＴｉ合金を超電導体としてＣｕ−Ｎｉマ
トリックス中に埋込んだ外径０，４ｍの線材をネオマー
ルで絶縁した超電導素線（１１）１０本を用いて、厚さ
０．８ ｍｍ、中２ｍの成形撚線面とした。この撚線０
３）には第２図に示すような着脱可能なＦＲＰ製のクリ
ップスペーサ０４）を取付けである。このスペーサ０４
は、内寸法が成形撚線０りと同じ＜０．８ｍｍＸ２ａｍ
であり、その厚さは０．７ｍｍ。FIG. 1 is an explanatory diagram of an embodiment of an AC superconducting wire according to the present invention, in which a superconducting element is constructed by insulating a wire with an outer diameter of 0.4 m embedded in a Cu-Ni matrix using a NbTi alloy as a superconductor with Neomar. Ten wires (11) were used to form a stranded wire surface with a thickness of 0.8 mm and a medium diameter of 2 m. This twisted wire 0
At 3), a removable FRP clip spacer 04) as shown in FIG. 2 is attached. This spacer 04
The inner dimensions are the same as the molded stranded wire <0.8mm x 2am
and its thickness is 0.7 mm.
巾は１．５ ｗａであり、深さ０．３薗、巾１ＩＩＩＩ
ｌの溝θωを有している。線材上のスペーサ側聞の間隔
はコイル中で５ｍ以上になるように定められた。この線
材を用いて、外径１０５ｍｍ、１層当り８．５ターンを
有する１２層からなり、合せて１０２ターンのコイルを
３個製作し、コイルの最内部に熱電対をセットした。こ
の３個のコイルのうち、１個はそのままの状１（Ａ）、
他の１個はエポキシ樹脂で全体を含浸し、樹脂を凝固さ
せた状態（Ｂ）、残りの１個のコイルはエポキシ樹脂で
全体を含浸した後、スペーサの間隙から樹脂を抜きとり
、残りの樹脂を凝固させた状ＢＣＣ＞とした、一方、比
較のために上述の成形撚線側に厚さ０．５ｍｍ、中１．
５薗のＦＲＰテープを５１１Ｉ１１の間隔でラセン状に
巻付けた線材を用いて、上述のごときコイルを製作し、
エポキシ樹脂で全体を含浸後、樹脂を抜きとり、残りの
樹脂を凝固させた状ｊＪ（Ｄ）とした。さらに、ＦＲＰ
テープを巻き付けた上述の線材を用いて厚さ０．２Ｍ、
巾１．５ ｍｍのスペーサを介在させて同様なコイルを
製作し、エポキシ樹脂で全体を含浸し、樹脂を凝固させ
た状態（Ｅ）とした。以上の５個のコイルについて、５
０ Ｈｚ交流通電試験を行い、５０１１ｚのクエンチ時
のピーク電流値およびコイル最内部の温度上昇を測定し
た。その結果を第１表に示す。The width is 1.5 wa, the depth is 0.3 wa, and the width is 1 III.
It has a groove θω of l. The distance between the spacer sides on the wire was determined to be 5 m or more in the coil. Using this wire, three coils having an outer diameter of 105 mm and 12 layers with 8.5 turns per layer and a total of 102 turns were manufactured, and a thermocouple was set in the innermost part of the coil. Among these three coils, one is in the state 1 (A) as it is,
The other one is completely impregnated with epoxy resin and the resin is solidified (B), and the remaining one coil is completely impregnated with epoxy resin, the resin is extracted from the spacer gap, and the remaining coil is On the other hand, for comparison, the above-mentioned molded stranded wire side had a thickness of 0.5 mm and a medium thickness of 1 mm.
A coil like the one described above was made using a wire rod made by winding 5 pieces of FRP tape in a helical shape at intervals of 511I11.
After the whole was impregnated with epoxy resin, the resin was extracted and the remaining resin was solidified to form jJ(D). Furthermore, FRP
Using the above-mentioned wire wrapped with tape, the thickness is 0.2M,
A similar coil was manufactured by interposing a spacer with a width of 1.5 mm, and the entire coil was impregnated with epoxy resin to solidify the resin (E). For the above 5 coils, 5
A 0 Hz AC current test was conducted to measure the peak current value during 5011z quenching and the temperature rise at the innermost part of the coil. The results are shown in Table 1.
第 １ 表
なお、冷媒通路開放率とは、スペーサ間隔に本来設計さ
れた冷媒が自由に流通できる開放率を１００とするもの
である。最内部上昇温度は、５０Ｈｚクエンチ電流の９
５％で３０時間運転した場合の上昇温度である。この結
果より、本発明による交流超電導線により製作したコイ
ル（Ａ、Ｂ、Ｃ）では、従来例（Ｄ、Ｅ）と比較して、
クエンチ時の５０土ピーク電流は大きく、最内部上昇温
度は小さくなっている。特に、含浸させた樹脂をスペー
サの間隙から抜きとったコイル（Ｃ）では、５０Ｈｚピ
ーク電流が従来の４〜５倍になり、著しく増大している
ことがわかる。Table 1 Note that the refrigerant passage opening rate is defined as 100, which is the opening rate at which the originally designed refrigerant can freely flow between the spacers. The innermost temperature rise is 9 of the 50Hz quench current.
This is the temperature increase when operating at 5% for 30 hours. From this result, the coils (A, B, C) manufactured using the AC superconducting wire according to the present invention, compared to the conventional examples (D, E),
The peak current at 50°C during quenching is large, and the temperature rise at the innermost part is small. In particular, it can be seen that in the coil (C) in which the impregnated resin is extracted from the gap between the spacers, the 50 Hz peak current is 4 to 5 times that of the conventional coil, which is significantly increased.
なお、本発明の他の実施例として、第３図に示すように
、銅線（２）のまわりに超電導素線（１）を６本配した
丸形の成形撚線（３）に穴Ｏｅを有するリング状スペー
サθりを長手方向に移動可能に挿入してもよい。In addition, as another embodiment of the present invention, as shown in FIG. A ring-shaped spacer θ may be inserted so as to be movable in the longitudinal direction.
以上説明したように本発明によれば、超電導素線の成形
撚線に、その長手方向に所望の間隔をもってスペーサが
具備されているため、コイル状態において、交流および
パルスのピーク電流が著しく増加し、変化の速い直流電
流に対しては安定度が増すという優れた効果がある。As explained above, according to the present invention, since the formed strands of superconducting strands are provided with spacers at desired intervals in the longitudinal direction, the peak currents of alternating current and pulses increase significantly in the coiled state. , which has the excellent effect of increasing stability against rapidly changing direct current.
第１図本発明にかかる交流超電導線の一実施例の斜視図
、第２図は前記実施例に用いられたスペーサの斜視図、
第３図は他の実施例の斜視図、第４図は従来の交流超電
導線の説明図、第５図は従来の交流超電導線を用いたコ
イルの説明図である。
１．１１・・・超電導素線、 ２．４・・・銅線、 ３
６．１３・・・成形撚線、 ５・・・カプトンテープ
、７・・・平角形多重撚綿、 ８・・・交流超電導線、
９゜１４．１７・・・スペーサ、 １０・・・コイ
ル、 １５・・・溝、 １６・・・穴。Fig. 1 is a perspective view of an embodiment of an AC superconducting wire according to the present invention; Fig. 2 is a perspective view of a spacer used in the embodiment;
FIG. 3 is a perspective view of another embodiment, FIG. 4 is an explanatory diagram of a conventional AC superconducting wire, and FIG. 5 is an explanatory diagram of a coil using a conventional AC superconducting wire. 1.11...Superconducting wire, 2.4...Copper wire, 3
6.13... Molded stranded wire, 5... Kapton tape, 7... Rectangular multi-twisted cotton, 8... AC superconducting wire,
9゜14.17... Spacer, 10... Coil, 15... Groove, 16... Hole.
Claims (4)
間隔をもってスペーサが具備されていることを特徴とす
る交流超電導線。(1) An AC superconducting wire characterized in that a formed strand of superconducting strands is provided with spacers at desired intervals in the longitudinal direction thereof.
する請求項１記載の交流超電導線。(2) The AC superconducting wire according to claim 1, wherein the spacer has a hole or a groove.
可能であることを特徴とする請求項１記載の交流超電導
線。(3) The AC superconducting wire according to claim 1, wherein the spacer is movable in the longitudinal direction of the formed stranded wire.
とを特徴とする請求項１記載の交流超電導線。(4) The AC superconducting wire according to claim 1, wherein the spacer is detachable from the formed stranded wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63238287A JP2846323B2 (en) | 1988-09-22 | 1988-09-22 | AC superconducting wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63238287A JP2846323B2 (en) | 1988-09-22 | 1988-09-22 | AC superconducting wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0287423A true JPH0287423A (en) | 1990-03-28 |
| JP2846323B2 JP2846323B2 (en) | 1999-01-13 |
Family
ID=17027948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63238287A Expired - Lifetime JP2846323B2 (en) | 1988-09-22 | 1988-09-22 | AC superconducting wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2846323B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6471105A (en) * | 1987-09-10 | 1989-03-16 | Sumitomo Electric Industries | Superconducting coil for ac |
-
1988
- 1988-09-22 JP JP63238287A patent/JP2846323B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6471105A (en) * | 1987-09-10 | 1989-03-16 | Sumitomo Electric Industries | Superconducting coil for ac |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2846323B2 (en) | 1999-01-13 |
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