JP3150683B2 - Power transmission method for superconducting conductor - Google Patents
Power transmission method for superconducting conductorInfo
- Publication number
- JP3150683B2 JP3150683B2 JP11352690A JP11352690A JP3150683B2 JP 3150683 B2 JP3150683 B2 JP 3150683B2 JP 11352690 A JP11352690 A JP 11352690A JP 11352690 A JP11352690 A JP 11352690A JP 3150683 B2 JP3150683 B2 JP 3150683B2
- Authority
- JP
- Japan
- Prior art keywords
- power transmission
- superconducting
- transmission method
- conductor
- current
- 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.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N60/00—Superconducting devices
- H10N60/20—Permanent superconducting devices
- H10N60/203—Permanent superconducting devices comprising high-Tc ceramic materials
Description
【発明の詳細な説明】 （産業上の利用分野） この発明は、超電導導体の送電方法に関するものであ
る。さらに詳しくは、この発明は、臨界電流値を高めつ
つ送電することのできる送電用超電導導体の送電方法に
関するものである。Description: TECHNICAL FIELD The present invention relates to a power transmission method for a superconducting conductor. More specifically, the present invention relates to a power transmission method for a power transmission superconductor that can transmit power while increasing a critical current value.
（従来の技術とその課題） 電気抵抗が零で、大容量の電流を送電することができ
る点で、超電導導体についての関心が大いに高まってい
る。特に近年の高温酸化物超電導体の出現によって、従
来の合金系、化合物系の超電導体に比べてはるかに冷媒
コストを低減することができることから、超電導送電の
実現に向かって大きく前進する状況にある。(Prior art and its problems) Interest in superconducting conductors has been greatly increased because electric resistance is zero and a large amount of current can be transmitted. In particular, with the advent of high-temperature oxide superconductors in recent years, the cost of refrigerant can be significantly reduced compared to conventional alloy-based and compound-based superconductors. .
このような送電用超電導導体については、たとえば第
３図に示したように、電気を供給する電源と供給される
機器との間の送電のために、単純にプラス電流リード
（ア）とマイナス電流リード（イ）とを並列に配置した
構造が考えられてきている。For such a power transmission superconductor, as shown in FIG. 3, for example, a positive current lead (A) and a negative current are simply used for power transmission between a power supply for supplying electricity and a device to be supplied. A structure in which leads (a) are arranged in parallel has been considered.
（発明が解決しようとする課題） しかしながら、このような従来より考えられてきてい
る送電用導体構造の場合には、導体の表面にできる自己
磁界によって、送電する電流容量が制限される。(Problems to be Solved by the Invention) However, in the case of such a conventionally-considered power transmission conductor structure, a current capacity to transmit power is limited by a self-magnetic field generated on the surface of the conductor.
一般に、直線状の半径Ｒの導体に一方向の電流Ｉを流
すと、導体の表面に次式 で表される磁界Ｈが発生する。In general, when a current I in one direction flows through a linear conductor having a radius R, the following expression is applied to the surface of the conductor. A magnetic field H represented by
一方、超電導体の臨界電流値は磁界により決まり、一
般に磁界を増加すると減少する。また、上記式より、送
電の電流容量を大きくすると、導体に流せる電流密度が
低下する。特に高温酸化物超電導体の臨界電流値は磁界
に敏感であり、0.1T（テスラ）の磁界が加わると、臨界
電流値は急激に低下する。On the other hand, the critical current value of the superconductor is determined by the magnetic field, and generally decreases as the magnetic field increases. According to the above equation, when the current capacity of power transmission is increased, the current density that can be passed through the conductor decreases. In particular, the critical current value of a high-temperature oxide superconductor is sensitive to a magnetic field, and when a magnetic field of 0.1 T (tesla) is applied, the critical current value sharply decreases.
このため、従来では、高い臨界電流値を実現しつつ送
電するのは難しいのが実情である。For this reason, conventionally, it is difficult to transmit power while realizing a high critical current value.
この発明は、以上のとおりの事情に鑑みてなされたも
のであり、従来技術の欠点を解消し、臨界電流値を高め
つつ送電することのできる超電導導体の送電方法を提供
することを目的としている。The present invention has been made in view of the circumstances described above, and has as its object to solve the drawbacks of the related art and to provide a power transmission method for a superconducting conductor capable of transmitting power while increasing a critical current value. .
（課題を解決するための手段） この発明は、上記の課題を解決するものとして、絶縁
されたテープ状の超電導線が多層積層されて一体化され
た超電導導体の各導線に、プラス電流、マイナス電流を
互い違いに通電して送電することを特徴とする超電導導
体の送電方法を提供する。(Means for Solving the Problems) According to the present invention, a positive current and a negative current are applied to each of the superconducting conductors in which insulated tape-shaped superconducting wires are laminated in a multilayer and integrated. A power transmission method for a superconducting conductor, characterized in that a current is alternately supplied to transmit power.
また、この発明は、絶縁されたテープ状の超電導線が
放射状に配置されて円筒状に一体化された超電導導体の
各導線に、プラス電流、マイナス電流を互い違いに通電
して送電することを特徴とする超電導導体の送電方法を
提供する。In addition, the present invention is characterized in that a positive current and a negative current are alternately applied to each of the cylindrical superconducting conductors in which an insulated tape-shaped superconducting wire is radially arranged to transmit power. And a power transmission method for a superconducting conductor.
このような超電導導体の構造と通電方式の採用によ
り、プラス電流で形成される磁界とマイナス電流で形成
される磁界とが互いに重なり合って打ち消し合い、した
がって、導体表面の磁界が減少し、臨界電流値の高い大
容量電流を流すことのできる送電が可能となる。Due to the structure of such a superconducting conductor and the adoption of an energizing method, the magnetic field formed by the positive current and the magnetic field formed by the negative current overlap each other and cancel each other out. Power transmission through which a high-capacity high current can flow.
この場合の超電導体については、その種類に特に限定
はなく、高温酸化物超電導体としてのＹ酸化物系、Bi酸
化物系、Tl酸化物系をはじめ、合金系、化合物系等の任
意のものが使用される。また、多芯線等、その構成につ
いても限定はない。The type of the superconductor in this case is not particularly limited, and may be any type such as an alloy type, a compound type, etc., including a Y oxide type, a Bi oxide type, a Tl oxide type as a high temperature oxide superconductor. Is used. Also, there is no limitation on the configuration such as a multi-core wire.
以下、この発明の実施例を示し、さらに詳しくこの発
明の超電導導体の送電方法について説明する。Hereinafter, examples of the present invention will be described, and the power transmission method of the superconducting conductor of the present invention will be described in more detail.
（実施例） 添付した図面の第１図および第２図は、この発明の超
電導導体の送電方法に適用可能なを例示したものであ
る。(Embodiment) FIGS. 1 and 2 of the attached drawings illustrate examples applicable to a power transmission method for a superconducting conductor according to the present invention.
第１図に示した例は、巾10mm、厚み1mmのＹ−Ba−Cu
−酸化物系の超電導体テープ（１）（２）（３）（４）
（５）（６）（７）（８）（９）（10）の10層を、0.5m
m厚の絶縁テープ（11）を介して積層したものを示して
いる。このうちの超電導体テープ（１）（３）（５）
（７）（９）にはプラス電流を、（２）（４）（６）
（８）（10）にはマイナス電流を通電する。The example shown in FIG. 1 is a Y-Ba-Cu 10 mm wide and 1 mm thick.
-Oxide superconductor tapes (1) (2) (3) (4)
(5) (6) (7) (8) (9) (10)
This shows a laminate obtained by laminating through an insulating tape (11) having a thickness of m. Superconductor tape (1) (3) (5)
(7) (9) plus a positive current, (2) (4) (6)
(8) Apply a negative current to (10).
また、第２図は、同様に巾10mm、厚み1mmの高温超電
導体テープ（12）（13）（14）（15）（16）（17）（1
8）（19）（20）（21）（22）（23）（24）（25）（2
6）（27）の16枚を放射状に配置し、各テープ間にFRPの
絶縁材（28）を配して円筒形に一体化した超電導導体の
例を示している。FIG. 2 also shows a high-temperature superconductor tape (12) (13) (14) (15) (16) (17) (1
8) (19) (20) (21) (22) (23) (24) (25) (2
6) This shows an example of a superconducting conductor in which 16 sheets of (27) are arranged radially, and an insulating material (28) of FRP is arranged between the tapes and integrated into a cylindrical shape.
このうち超電導体テープ（12）（14）（16）（18）
（20）（22）（24）（26）にはプラス電流を、また、超
電導体テープ（13）（15）（17）（19）（21）（23）
（25）（27）にはマイナス電流を通電する。Of these, superconductor tapes (12) (14) (16) (18)
(20) (22) (24) (26) plus positive current, and superconductor tape (13) (15) (17) (19) (21) (23)
(25) Apply a negative current to (27).
たとえば以上の例に示した構造により、導体表面の磁
界は減少し、臨界電流値が高まり、大容量の電流を流す
ことができた。For example, with the structure shown in the above example, the magnetic field on the conductor surface was reduced, the critical current value was increased, and a large amount of current could flow.
もちろん、この発明においては、テープ状超電導線絶
縁材の種類、それらの形状や構造においては様々な態様
が可能であることはいうまでもない。Of course, in the present invention, it goes without saying that various modes are possible in the type of tape-shaped superconducting wire insulating material, their shape and structure.
（発明の効果） この発明により、以上詳しく説明したとおり、導体表
面の磁界が大きく減少し、導体の磁界電流値が増大す
る。このため、大容量の電流の送電が確保される。(Effect of the Invention) According to the present invention, as described in detail above, the magnetic field on the conductor surface is greatly reduced, and the magnetic field current value of the conductor is increased. Therefore, power transmission of a large amount of current is secured.
第１図および第２図は、各々、この発明の超電導導体の
送電方法に適用可能な超電導導体の例を示した斜視図で
ある。 第３図は、従来の超電導導体の構造を示した斜視図であ
る。 １〜10……超電導体テープ 11……絶縁テープ 12〜27……超電導体テープ 28……絶縁材1 and 2 are perspective views each showing an example of a superconducting conductor applicable to the power transmitting method for a superconducting conductor of the present invention. FIG. 3 is a perspective view showing the structure of a conventional superconducting conductor. 1-10 Superconducting tape 11 Insulating tape 12-27 Superconducting tape 28 Insulating material
Claims (2)
されて一体化された超電導導体の各導線に、プラス電
流、マイナス電流を互い違いに通電して送電することを
特徴とする超電導導体の送電方法。1. A superconducting conductor characterized in that a positive current and a negative current are alternately applied to each of the superconducting conductors in which an insulated tape-shaped superconducting wire is laminated in a multi-layered form and transmitted. Power transmission method.
配置されて円筒状に一体化された超電導導体の各導線
に、プラス電流、マイナス電流を互い違いに通電して送
電することを特徴とする超電導導体の送電方法。2. A superconducting conductor in which insulated tape-shaped superconducting wires are radially arranged and integrated into a cylindrical superconducting conductor, and a positive current and a negative current are alternately supplied to each other to transmit power. Power transmission method for superconducting conductors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11352690A JP3150683B2 (en) | 1990-04-27 | 1990-04-27 | Power transmission method for superconducting conductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11352690A JP3150683B2 (en) | 1990-04-27 | 1990-04-27 | Power transmission method for superconducting conductor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0412412A JPH0412412A (en) | 1992-01-17 |
| JP3150683B2 true JP3150683B2 (en) | 2001-03-26 |
Family
ID=14614573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11352690A Expired - Fee Related JP3150683B2 (en) | 1990-04-27 | 1990-04-27 | Power transmission method for superconducting conductor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3150683B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5347085A (en) * | 1991-02-07 | 1994-09-13 | The Furukawa Electric Co., Ltd. | Multifilamentary oxide superconducting wires and method of manufacturing the same |
| EP1787535B1 (en) * | 2005-11-16 | 2013-07-03 | Cho, Eun Hyo | Pants having body-shaping function |
| JP5115245B2 (en) * | 2008-03-06 | 2013-01-09 | 富士電機株式会社 | Superconducting current lead |
| EP2369600B1 (en) * | 2010-03-04 | 2012-08-29 | Nexans | Direct current supraconductor cable |
-
1990
- 1990-04-27 JP JP11352690A patent/JP3150683B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0412412A (en) | 1992-01-17 |
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