Study on causes and compensation for speed attenuation of a spherical superconducting rotor
Study on causes and compensation for speed attenuation of a spherical superconducting rotor
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球形超导转子速度衰减原因及补偿研究
DOI：
10.1109/tasc.2017.2672042
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发表时间：
2017
影响因子：
1.8
通讯作者：
Wang Lei
中科院分区：
文献类型：
--
作者：
Wang Hao;Hu Xinning;Cui Chunyan;Wang Hui;Liu Jianhua;Wang Lei
当超导磁悬浮装置运行时，球形超导转子将保持200 Hz以上的高速旋转。它给转子带来较大的角动量和较高的定向稳定性，这是实现装置高精度的前提条件之一。但在工程实践中，由于某些因素的影响，转子的转速会发生衰减，影响装置的精度。本文分析了引起转子转速衰减的主要因素。进行了不同压力下的速度衰减实验。在对装置进行漂移试验后，对速度衰减引起的漂移率误差进行了补偿。补偿后的漂移率比未补偿时下降了4.95%。
When the superconducting magnetic suspension device is in operation, the spherical superconducting rotor will keep rotating at a high speed above 200 Hz. It brings the rotor a large angular momentum and high orientation stability, which is one of the preconditions for achieving high accuracy of the device. However, in engineering practice, due to the influence of some factors, the speed of the rotor will decay, which affects the precision of the device. In this paper, main factors that arouse the speed attenuation of the rotor were analyzed. Experiments on speed attenuation with different pressures were carried out. Compensation for the error of the drift rate arising from speed attenuation was carried out after a drift test for the device. After compensation, the drift rate decreased by 4.95% compared with the value without compensation.