用于超导脉冲变压器的双饼线圈交流损耗优化  

Modeling and simulation of AC loss of double pancake coil used in HTSPPT

作　　者：李宗哲 李震梅[1] 李海涛[1] 王卓 狄晓栋 Li Zongzhe;Li Zhenmei;Li Haitao;Wang Zhuo;Di Xiaodong(School of Electrical and Electronic Engineering,Shandong University of Technology,Zibo 255049,China)

机构地区：[1]山东理工大学电气与电子工程学院,淄博255049

出　　处：《低温与超导》2021年第2期26-31,共6页Cryogenics and Superconductivity

基　　金：山东省自然科学基金(ZR2019QEE018);山东省本科教改项目(M2018X221)资助。

摘　　要：基于二维轴对称H方程法对用于高温超导脉冲变压器的YBCO双饼线圈进行了有限元建模与仿真,研究了分磁环参数和开槽数对YBCO双饼线圈传输原边电流时的磁场特性和交流损耗的影响。仿真结果表明,分磁环能够显著减弱双饼线圈的径向磁场,降低其交流损耗。对分磁环开槽后,径向磁场主要分布在开槽处。当分磁环相对磁导率为100,与线圈间距为0.25 mm,厚度为1 mm,开槽数为3时,双饼线圈交流损耗降低了64.9%。The finite element simulation of the YBCO double pancake coil used in high temperature superconducting pulsed power transformer(HTSPPT) was carried out based on the two-dimensional axisymmetric H formulation. The influences of the flux diverter parameters and the number of slots on the magnetic field characteristic and AC loss of the YBCO double pancake coil were researched when transmitting the primary current. The simulation results show that after flux diverters are installed, the radial magnetic field and AC loss of the coil are significantly reduced. After flux diverters are slotted, the radial magnetic field is mainly distributed at the slots. The AC loss of the double pancake coil is reduced by 64.9% when the relative permeability of the flux diverter is 100, the gap between the flux diverter and the coil is 0.25 mm, the thickness of the flux diverter is 1 mm, and the number of slots is 3.

关 键 词：高温超导脉冲变压器 YBCO双饼线圈 交流损耗 有限元仿真 分磁环 

分 类 号：TM26[一般工业技术—材料科学与工程]