Calculation of the interaction forces between superconductor and permanent magnet using equivalent current loops in zero field cooling

doi:10.4028/www.scientific.net/AMR.634-638.2436

	Calculation of the interaction forces between superconductor and permanent magnet using equivalent current loops in zero field cooling
	Yang, Yong; Zheng, Xiao Jing; Li, Tao; Hua, Zhi Qiang; Yang, Y. (yangy_115@163.com)
	2013
会议日期	December 15, 2012 - December 16, 2012
会议地点	Kunming, China
关键词	Permanent magnets High temperature superconductors Magnetic bearings Metallurgical engineering Current intensity Current loop Equivalent currents Flywheel energy storage system Frozen-image method Horizontal forces Interaction forces Magnetic bearing systems Magnetic dipole Superposition theorem Vertical force Zero-field cooling
卷号	634-638
期号	1
DOI	10.4028/www.scientific.net/AMR.634-638.2436
页码	2436-2441
英文摘要	The levitation between high temperature superconductors (HTSs) and permanent magnets (PMs) has been applied to the flywheel energy storage systems and magnetic bearing systems for the last nearly twenty years. The interaction forces acting on the levitating body are calculated by the modified frozen-image method. The magnetic dipoles are equivalent to Amperian current loops. The current intensity in loops changes linearly when the PM moves. Under the zero field cooling condition, the expression of vertical force is obtained when the PM traverses vertically, and when the PM traverses horizontally, the expressions of vertical and horizontal forces are obtained. Those expressions of vertical and horizontal forces are gained by calculating the forces between current loops and using superposition theorem of vector. The calculations agree well with the previous experimental data, which means that the deductions of the expressions are reliable. © (2013) Trans Tech Publications, Switzerland.
会议录	Advanced Materials Research
会议录出版地	Clausthal-Zellerfeld
学科主题	Metallurgy And Metallography
语种	英语
ISSN号	1022-6680
内容类型	会议论文
源URL	[http://ir.lzu.edu.cn/handle/262010/184217]
专题	土木工程与力学学院_会议论文
通讯作者	Yang, Y. (yangy_115@163.com)
推荐引用方式 GB/T 7714	Yang, Yong,Zheng, Xiao Jing,Li, Tao,et al. Calculation of the interaction forces between superconductor and permanent magnet using equivalent current loops in zero field cooling[C]. 见:. Kunming, China. December 15, 2012 - December 16, 2012.