Affiliations: [a] School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009, Anhui, China | [b] Chinese Academy of Sciences Institute of Plasma Physics, Hefei 230009, Anhui, China
Correspondence:
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Corresponding author: Xiaohua Bao, School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009, Anhui, China. Tel.: +86 055162905883; Fax: +86 055162904435; E-mail:[email protected]
Abstract: The multilayer magnetic shielding of the air-core reactor
in power supply of Experimental Advanced Superconducting Tokomak (EAST)
poloidal field (PF) is used as a model in this paper to analyze the
eddy-current loss of shielding structure. Analytical method is adopted to
deduce the eddy current loss of magnetic shielding. Then, several different
combinations are established to calculate the total eddy current losses of
multilayer shielding. 3D-finite element models (FEM) are applied to
calculate the eddy current losses with different interlayer spacing and
arrangement of layers. Those models are used to find out the changing
characteristics of interlayer spacing and arrangement.These methods
mentioned in this paper can be applied for the further designing of low loss
multilayer magnetic shielding.
Keywords: EAST, poloidal field supply, combined shielding, eddy-current loss
