CAJ | 학술논문

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4.2 K,30 Pa下进行了转子旋转实验,结果显示,30 A驱动电流下转子转速达到了8 512 r/min,表明该旋转驱动装置能够将转子加速到8 500 r/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.
위료실현초도구형전자재저온배경하고속은정적선전,설계료일충기우매사납효응적초도전자선전구동장치.해선전구동장치주요포괄초도정자화초도구형전자량부분,정자채용량상결구,전자채용재기내벽상개유4개창구적공심결구.이용정자초도선권적자장재공심전자내벽창구상산생적전동력구구동전자선전.연후,통과Ansoft연건대초도전자선전구동력진행료유한원분석.분석표명,구동력구여구동전류적평방근사성정비례관계.재4.2 K,30 Pa하진행료전자선전실험,결과현시,30 A구동전류하전자전속체도료8 512 r/min,표명해선전구동장치능구장전자가속도8 500 r/min이상적공작구역,위진일보우화장치설계삼수이급제고전자선전은정성전정료기출.
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.