中文摘要：

为了实现超导球形转子在低温环境下高速稳定的旋转,设计了一种基于迈斯纳效应的超导转子旋转驱动装置。该旋转驱动装置主要包括超导定子和超导球形转子两部分,定子采用两相结构,转子采用在其内壁上开有4个窗口的空心结构。利用定子超导线圈的磁场在空心转子内壁窗口上产生的转动力矩驱动转子旋转。然后,通过Ansoft软件对超导转子旋转驱动力进行了有限元分析。分析表明,驱动力矩与驱动电流的平方近似成正比例关系。在4.2K,30Pa下进行了转子旋转实验,结果显示,30A驱动电流下转子转速达到了8512r/min,表明该旋转驱动装置能够将转子加速到8500r/min以上的工作区域,为进一步优化装置设计参数以及提高转子旋转稳定性奠定了基础。

英文摘要：

In order to maintain a stable spin and high-speed rotation of superconducting spherical rotors at low temperatures,a spin drive device for superconducting rotors is designed based on the Meissner effect.The spin drive device includes a superconducting stator and a superconducting spherical rotor.The stator is fitted two-phase coils and the rotor is a hollow structure with four windows in its inner wall.The electromagnetic field generated by the stator coils can produce a rotating torque on the windows in the inner wall to drive the rotor to rotate.Then,the driving force is calculated using the Ansoft software,and analysis results show that the driving torque is approximately in proportional to the square of drive current.Rotation experiments are performed at 4.2 K,30 Pa and rotation speed is up to 8 512 r/min in a drive current of 30 A.Experimental results indicate that the drive device can accelerate the rotor to an operating speed above 8 500 r/min,which provides valuable references for the further improvement of the design parameters of drive devices and the rotation stability of superconducting spherical rotors.