Title :
Flux Flow Loss of HT-SMES Coil During Energy Exchange
Author :
Jianxun Jin ; Wei Xu ; Xiaoyuan Chen ; Liang Wen ; Shanchuan Wang
Author_Institution :
Sch. of Autom. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
This paper presents an empirical approach of flux flow loss in a high-temperature superconducting (HTS) magnetic energy storage coil based on finite element algorithm and numerical circuit analyses. The critical current and flux flow loss distributions are discussed in details by integrating the magnetic-field-dependent anisotropy and powerlaw critical state model of first-generation HTS Bi-2223 tape. A coil-current-dependent power-law formula is derived to estimate flux flow loss of a prototype Bi-2223 solenoid coil under different energy exchange operation conditions.
Keywords :
finite element analysis; inductive energy storage; magnetic circuits; magnetic flux; solenoids; superconducting coils; Bi-2223 solenoid coil prototype; HT-SMES coil; coil-current-dependent power-law formula; critical current; energy exchange operation conditions; finite element algorithm; first-generation HTS Bi-2223 tape; flux flow loss distributions; high-temperature superconducting magnetic energy storage coil; magnetic-field-dependent anisotropy; numerical circuit analyses; powerlaw critical state model; Coils; Critical current density (superconductivity); Energy exchange; Perpendicular magnetic anisotropy; Solenoids; Superconducting magnetic energy storage; Anisotropy; Bi-2223 tape; energy exchange; flux flow loss; superconducting magnetic energy storage (SMES);
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2014.2329366
