Numerical Evaluation of Levitation Force Oscillation of HTS Bulk Exposed to AC Magnetic Field over NdFeB Guideway

被引：4

作者：

Liu, Minxian ^{[1
]}

Lu, Yiyun ^{[2
]}

Wang, Suyu ^{[3
]}

Ma, Guangtong ^{[3
]}

机构：

[1] SW Univ Sci & Technol, Sch Comp Sci & Technol, Mianyang 621000, Sichuan, Peoples R China

[2] Luoyang Inst Sci & Technol, Dept Elect Engn & Automat, Luoyang 471023, Henan, Peoples R China

[3] SW Jiaotong Univ, Appl Superconduct Lab, Chengdu 610031, Sichuan, Peoples R China

来源：

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2011年 / 24卷 / 05期

关键词：

HTS maglev; AC magnetic field; YBCO bulk; Critical state model; DECAY;

D O I：

10.1007/s10948-010-1057-5

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The levitation force of the YBCO bulk over an NdFeB guideway used in the high-temperature superconducting (HTS) maglev vehicle system is oscillated by the application of the AC external magnetic field. In our previous work, we interpreted that the oscillation is due to the shielding current fluctuation caused by fluctuant external magnetic field. In this paper, based on the Bean model, an analytical model is adopted to evaluate the levitation force. Comparing with the experimental results, the calculated results show good matching. The model can reveal the oscillation characteristics of the levitation force of HTS bulk which is being exposed to AC external magnetic field. Therefore, the levitation force oscillation of the HTS bulk in the maglev vehicle system can be evaluated by this numerical method.

引用

页码：1559 / 1562

页数：4

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