Mechanical characterization of a 10-MJ HTS SMES magnet wound by quasiisotropic strands and directly stacked tape conductors
作者机构：State Key Lab.of New Energy Renewable Power SystemNorth China Electric Power UniversityBeijing 102206China Key Lab.of HV and EMC BeijingNorth China Electric Power UniversityBeijing 102206China Energy Singularity Energy Technolo-gy(shanghai)Co.LtdShangHai 200000China
出 版 物：《Superconductivity》 (超导（英文）)
年 卷 期：2023年第5卷第1期
页 面：69-74页
核心收录：
学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学]
基 金：supported in part by the National Natural Science Foundation of China under Grant No.51977078
主 题：Lorentz force Quasi‐isotropic strand Superconducting magnetic energy storage Screening current Weibull distribution
摘 要：A 10‐MJ‐class superconducting magnetic energy storage(SMES)magnet is designed and optimized in this study using quasi‐isotropic strands and stacked‐tape *** order to ensure the stable operation of SMES systems,it is necessary to evaluate the mechanical properties risk caused by the Lorentz ***,in this study,the magnetic stress caused by the Lorentz force is analyzed using the finite element *** results show that the tapes near the inner diameter of the magnet are subjected to a higher stress and require considerable *** the maximum stress is increased by two times due to the presence of the screening current,it is within the safety *** screening current does not vanish after the discharge *** discharge,the coil is still subjected to a stress on the other of a few MPa.
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