兰州大学机构库 >土木工程与力学学院
Numerical estimation of AC losses in Bi2212/Ag wire and coil
Wu Junfeng1,2; Yong, HD(雍华东)1,2; Zhou, YH(周又和)1,2
Indexed BySCIE
2019-09-15
Source PublicationPHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
ISSN0921-4534
Volume564Pages:22-28
AbstractThe multi-filamentary Bi2Sr2CaCu2O8-x (Bi2212) round wire is the candidate for high field magnets, which is macroscopically isotropic and has large critical current in high field. AC losses generated in coils by ac transport current and magnetic field will lead to the rise of local temperature and consumption of liquid helium. However, the simulations of AC losses in coils are limited by the complicated geometry. This paper presents a homogenization model for computing the current density distributions, field distributions and AC losses in coils wound by multifilament Bi2212/Ag round wire. Based on two-dimensional axisymmetric H-formulation (H is the magnetic filed), the field dependent critical current density and the nonlinear relation between the electric filed E and the current density J are used to describe the macroscopic behavior of the superconductor. To validate the homogenization model, the AC loss is compared with the result of origin model which has the actual filament configuration of round wire. The homogenization model is powerful to estimate the AC losses of cables and coils made by Bi2212/Ag round wire.
KeywordBi-2212/Ag round wire Ac transport current and magnetic field AC loss Homogenization model
DOI10.1016/j.physc.2019.05.005
Language英语
Funding Project111 Project[B14044]
WOS Research AreaPhysics
WOS SubjectPhysics, Applied ; Physics, Condensed Matter
WOS IDWOS:000483414600005
PublisherELSEVIER
Original Document TypeArticle
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.lzu.edu.cn/handle/262010/294270
Collection土木工程与力学学院
Corresponding AuthorYong Huadong
Affiliation1.Lanzhou Univ, Minist Educ China, Key Lab Mech Disaster & Environm Western China, Lanzhou 730000, Gansu, Peoples R China
2.Lanzhou Univ, Coll Civil Engn & Mech, Dept Mech & Engn Sci, Lanzhou 730000, Gansu, Peoples R China
First Author AffilicationSchool of Civil Engineering and Mechanics
Corresponding Author AffilicationSchool of Civil Engineering and Mechanics
Recommended Citation
GB/T 7714
Wu Junfeng,Yong Huadong,Zhou Youhe. Numerical estimation of AC losses in Bi2212/Ag wire and coil[J]. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS,2019,564:22-28.
APA Wu Junfeng,Yong Huadong,&Zhou Youhe.(2019).Numerical estimation of AC losses in Bi2212/Ag wire and coil.PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS,564,22-28.
MLA Wu Junfeng,et al."Numerical estimation of AC losses in Bi2212/Ag wire and coil".PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS 564(2019):22-28.
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