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Development of Fully Superconducting Thrust Linear Actuator Using Temperature Superconductors

利用温度超导体开发全超导推力线性执行器

基本信息

批准号：
09555086
负责人：
TSUKAMOTO Osami
金额：
$ 8.32万
依托单位：
Yokohama National University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1997
资助国家：
日本
起止时间：
1997 至 1999
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09555086/
关键词：
HTS linear actuator YBCO bulk Bi Ag sheathed tape HTS coil Direct drive 全高温超伝導全超伝導バルグ材料ビスマス銀シースコイルイットリウム系工作機器ダイレクトドライブ

项目摘要

In the project, we studied and developed elementary technology for fully superconducting linear actuators with high temperature superconducting (HTS) primary windings and a thruster made of HTS bulks.An electric direct-drive linear actuator with high thrust force has great potential needs in the field of industrial automation. Rapid and exact force control is possible by the electric direct-drive system, which is difficult by other methods such as hydraulic system and gear-and motor system. To obtain high thrust force using an electric direct-drive system of copper windings, however, current density of the windings should be very high and the joule heating in the windings becomes very high. Therefore, the actuator needs a large capacity power supply and a large size water cooling system. On the other hand, the fully superconducting actuator can be more compact and have higher thrust force with much smaller power loss than the copper actuator. It only needs small size power supply and the cooling system can be much smaller than the water cooling system for the copper actuator.We made a model actuator with a primary winding wound of Bi/Ag sheathed tape and thruster with a YBCO bulk and studied basic of thrust force.We made an analytical model to calculate the thrust force and showed the validity of the analysts. We also studied AC loss characteristics of the primary windings and the bulk superconductors which are important data for designing the actuator. We developed a method to magnetize a bulk array with alternative polarity for the thruster and proved the method worked well.

在本项目中，我们研究和开发了具有高温超导（HTS）初级绕组的全超导直线驱动器和由HTS块材制成的推力器的基础技术。具有高推力的电动直驱直线驱动器在工业自动化领域具有巨大的潜在需求。电直接驱动系统可以实现液压系统、齿轮-电机系统等其他方法难以实现的快速、精确的力控制。然而，为了使用铜绕组的电直接驱动系统获得高推力，绕组的电流密度应该非常高，并且绕组中的焦耳加热变得非常高。因此，执行机构需要大容量的电源和大尺寸的水冷却系统。另一方面，全超导致动器可以比铜致动器更紧凑，并且具有更高的推力和更小的功率损耗。该驱动器只需小尺寸电源，冷却系统可以比铜驱动器的水冷系统小得多，我们制作了一个初级绕组为Bi/Ag护套带绕制的驱动器模型和一个YBCO块体的推力器模型，研究了推力的基本原理，建立了一个计算推力的解析模型，并验证了分析的正确性。研究了一次绕组和超导体的交流损耗特性，为驱动器的设计提供了重要数据。提出了一种用于推进器的块体阵列交替磁化方法，并证明了该方法的有效性。