Research of High Voltage Superconducting Homopolar Machines

高压超导单极电机研究

• 批准号: 07455123
• 负责人: ISHIGOHKA Takeshi
• 金额: $ 1.22万
• 依托单位: SEIKEI UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07455123/
• 关键词: superconducting; homopolar machine; multi-disk type; 多重円板; 超伝導; 回転機; 高電圧化

Generally, it has been said that homopolar machines cannot be applied for practical use because their output voltages are too small. In order to improve this characteristics, we introduced a high magnetic field of a superconducting magnet. And, we also introduced a multi-disk-type armature, which has many rotating armature disks connected in series electrically. An experimental machine with two armature disks and a superconducting field. The experimental results shows ;(1)the magnetic field is not shielded by the armature rotating disks,(2)the output voltage becomes the sum of each armature disk voltage,Apart from the experimental study, we carried out a conceptual design of a large scale superconducting homopolar machine with a rating of 500kV,500MW.From the design study, it becomes clear that the AC/DC converter using this homopolar machine can generate DC power directly with the efficiency of 99.7%, which is much higher than the usual stationary type converters.The technological problems left to be solved are listed below ;(1)the development of high performance current collecting brush system,(2)the increasing of the diameter of the rotating disk is very effective to increase the output voltage,(3)the establishment of shielding technology of stray magnetic field.

一般来说，人们认为单极电机不能用于实际应用，因为它们的输出电压太小。为了改善这一特性，我们引入了高磁场的超导磁体。同时，我们还介绍了一种多盘式电枢，它有许多旋转电枢磁盘串联电气。具有两个电枢盘和超导场的实验机。实验结果表明：（1）磁场不受电枢旋转盘的屏蔽，（2）输出电压成为各电枢盘电压之和。除了实验研究外，我们还对一台额定电压为500 kV，500 MW的大型超导单极电机进行了概念设计。结果表明，采用该单极电机的AC/DC变换器可直接产生直流电，其效率可达99.7%，远高于通常的固定式变换器。（1）研制高性能的集电刷系统;（2）增大转盘直径对提高输出电压非常有效;（3）建立杂散磁场屏蔽技术。

项目成果

三橋 司, 石郷岡 猛 他: "超電導単極発電機の試作と基本試験" 電気学会超電導応用電力機器・回転機合同研究会. ASC-97-23. 13-16 (1997)

Tsukasa Mitsuhashi、Takeshi Ishigooka 等人：“超导单极发电机的原型和基本测试”IEEJ 超导应用电力设备和旋转机器联合研究组 ASC-97-16 (1997)。

三橋司, 石郷岡猛 他: "超電導単極発電機の試作と基本実験" 電気学会超電導応用電力機器・回転機合同研究会. ASC-97-23. 13-16 (1997)

Tsukasa Mitsuhashi、Takeshi Ishigooka 等人：“超导单极发电机的原型和基本实验”IEEJ 超导应用电力设备和旋转机器联合研究组 ASC-97-16 (1997)。

T. Ishigohka, et al.,: "A conceptial Design of High Voltage Superconducting DC Homopolar Machine" Proc. of 15th International Conference on Magnet Technology (MT-15). No. LB1-5. (1998)

T. Ishigohka 等人：“高压超导直流单极电机的概念设计”Proc。

石郷岡猛: "円筒コイル内での導体円板の回転実験(多重円筒型単極機の予備実験)" 成蹊大学工学研究報告. 33巻,1/2号. 17-18 (1996)

Takeshi Ishigooka：“在圆柱形线圈中旋转导体盘的实验（多圆柱形单极电机的初步实验）”成机大学工程研究报告第 33 卷，第 17-18 期（1996 年）。

T.Mitsuhashi, T.Ishigohka, et al.: "Fabrication and Fundamental Experiment of Superconducting Homopolar Generator" IEEJ Technical Report. No.ASC-97-23. 13-16 (1997)

T.Mitsuhashi、T.Ishigohka 等人：“超导单极发电机的制造和基础实验”IEEJ 技术报告。