Numerical Analysis of REBCO High-Temperature Superconducting (HTS) Coils Based on Screening Effect

doi:10.1007/s10948-022-06392-5

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Numerical Analysis of REBCO High-Temperature Superconducting (HTS) Coils Based on Screening Effect
	Shi, Shijie; Liang, Rui
刊名	JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
	2022-09-01
关键词	REBCO high-field coils AC loss Error field Screening current
ISSN号	1557-1939
DOI	10.1007/s10948-022-06392-5
英文摘要	REBa2Cu3Ox (REBCO) tapes with high critical temperature, high critical current density, and preferably mechanical properties have been put into use in various industries. Nonetheless, its complex anisotropy and error field caused by the screening currents are still challenges for commercial applications. In this paper, the influence of with or without ferromagnetic substrate on the AC loss of superconducting composite tapes is first explored. It is discovered that the above and below superconducting tapes #1 and #3 have the screening effect on the middle superconducting tape #2. Then, the REBCO high-field coils were equated based on the anisotropic homogenization technique, and the distribution characteristics of the electromagnetic field, AC loss, and Lorentz force of the equivalent REBCO high-field coils are calculated. By investigating the performance characteristics of the central magnetic field, it is found that the screening current has an effect on the central magnetic field and critical current density of the coils. Moreover, the magnetic field induced by the screening current can reach a maximum of 0.8 T, which results in a 7.8% error field at the center of the REBCO high-field coils. Simultaneously, the screening current also reduces the critical current density at the top and bottom of the coils. Finally, the distribution law of current density and radial Lorentz force in different engineering turns in the fully charged state is investigated. The results prove that the Lorentz force generated by screening current is approximately 2.7 times greater than that of non-screening current (copper coils).
WOS研究方向	Physics
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000852928000002
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/159795]
专题	石油化工学院
作者单位	Lanzhou Univ Technol, Sch Petrochem Technol, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Shi, Shijie,Liang, Rui. Numerical Analysis of REBCO High-Temperature Superconducting (HTS) Coils Based on Screening Effect[J]. JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM,2022.
APA	Shi, Shijie,&Liang, Rui.(2022).Numerical Analysis of REBCO High-Temperature Superconducting (HTS) Coils Based on Screening Effect.JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM.
MLA	Shi, Shijie,et al."Numerical Analysis of REBCO High-Temperature Superconducting (HTS) Coils Based on Screening Effect".JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM (2022).