Development of Superconducting Fault Current Limiting Transformer with HTS Bulk Conductors

高温超导体导体超导故障限流变压器的研制

• 批准号: 14205040
• 负责人: HAYAKAWA Naoki
• 金额: $ 31.95万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-14205040/
• 关键词: Superconducting Fault Current Limiting Transformer; Superconducting Fault Current Limiter; Superconducting Transformer; Bi2212; CuNi Composite Bulk Conductor; Leakage Impedance; Limiting Impedance; Current Limiting Characteristics; Recovery Charac

We developed HTc-SFCLT (High Temperature Superconducting Fault Current Limiting Transformer) with functions of both superconducting transformer and superconducting fault current limiter as the Phase-3 of our SFCLT project. The main results in this paper are summarized as follows :(1) Composite material of MCP-BSCCO2212 bulk and CuNi was adopted as the low-voltage coil of HTc-SFCLT, whereas copper -wire was adopted as the high-voltage coil. Such a HTc-SFCLT was immersed in liquid nitrogen together with the iron core.(2) No-load and short-circuit test results confirmed that HTc-SFCLT has the fundamental performance with the design parameters as a superconducting transformer.(3) Current limiting test results revealed that HTc-SFCLT has the effective current limiting function as a superconducting fault current limiter. The prospective short-circuit current I_<PRO>=800 A_<peak> could be limited into 55% at 1 cycle and 37% at 5 cycles after short-circuit.(4) Recovery test results suggested that HTc-SFCLT could successfully recover into superconducting state by itself immediately after the fault clearance. The temperature rise of BSCC02212 bulk coil during the current limiting process was estimated to be at most 4 K even for I_<PRO>=800 A_<peak>.

我们开发了HTC-SFCLT（高温超导故障电流限制变压器），具有超导变压器和超导故障电流限制器作为我们SFCLT项目的3期。本文的主要结果总结如下：（1）MCP-BSCCO2212散装的复合材料和CUNI被用作HTC-SFCLT的低压线圈，而铜线被用作高压线圈。这种HTC-SFCLT与铁芯一起浸入液氮中。（2）NO-LOAD和短路测试结果证实，HTC-SFCLT具有基本性能，设计参数作为超导变压器。（3）HTC-SFCLT的当前极限测试结果表明，HTC-SFCLT具有有效的当前限制性功能，即当前的极限函数。前瞻性短路电流I_ <pro> = 800 A_ <peak>在1周期时可以限制为55％，在短路后5个周期时37％。（4）恢复测试结果表明，HTC-SFCLT可以在断层清除后立即成功地单独通过自身恢复到超导状态。在当前限制过程中，BSCC02212散装线圈的温度升高估计最多为4 K，即使对于I_ <pro> = 800 A_ <Peak>。

项目成果

C.Kurupakorn, N.Hayakawa, et al.: "Development of High Temperature Superconducting Fault Current Limiting Transformer (HTc-SFCLT) with Bi2212 Bulk Coil"IEEE Transactions on Applied Superconductivity. (to be published). (2004)

C.Kurupakorn、N.Hayakawa 等人：“使用 Bi2212 大容量线圈开发高温超导故障限流变压器 (HTc-SFCLT)”IEEE 应用超导汇刊。

クルパコン チャチャヴァン: "Bi-2212バルク導体を用いた高温超電導限流変圧器(HTc-SFCLT)の限流特性"電気学会全国大会. (発表予定). (2004)

Krupakorn Chachavan：“使用 Bi-2212 散装导体的高温超导限流变压器 (HTc-SFCLT) 的限流特性”，日本电气工程师协会全国会议（预定报告）（2004 年）。

クルパコン チャチャヴァン: "Bi2212高温超電導限流変圧器(HTc-SFCLT)の設計・製作"電気学会全国大会. 5-145 (2003)

Krupakorn Chachavan：“Bi2212 高温超导限流变压器 (HTc-SFCLT) 的设计和制造”日本电气工程师学会全国会议 5-145 (2003)。

C.Kurupakorn, N.Hayakawa, et al.: "Recovery Characteristics after Current Limitation of High Temperature Superconducting Fault Current Limiting Transformer (HTc-SFCLT) 1"Applied Superconductivity Conference (ASC). (to be presented).

C.Kurupakorn、N.Hayakawa 等人：“高温超导故障限流变压器 (HTc-SFCLT) 1 限流后的恢复特性”应用超导会议 (ASC)。

クルパコン チャチャヴァン: 電気学会超電導応用電力機器/リニアドライブ合同研究会. 19-24 (2003)

Krupakorn Chachavan：IEEJ 超导应用电力设备/线性驱动联合研究组。19-24 (2003)