考虑磁场径向分量的高温超导储能磁体几何结构优化配置  

GEOMETRY CONFIGURATION OPTIMIZATION OF HIGH TEMPERATURE SMES CONSIDERING THE R COMPONENT OF MAGNETIC FLUX DENSITY

作　　者：姚领[1] 雷勇[1] 朱英伟[1] 

机构地区：[1]四川大学电气信息学院,成都610065

出　　处：《低温物理学报》2016年第1期59-64,共6页Low Temperature Physical Letters

基　　金：国家自然科学基金项目(批准号:51207097);教育部博士点基金(批准号:20120181120100)资助的课题~~

摘　　要：高温超导储能磁体磁场的径向分量使得带材利用率不高且磁体储能密度低.针对此问题,本文提出了一种获得高温超导储能磁体最优几何结构配置的方法.首先利用MATLAB对YBCO高温超导储能单螺管磁体的结构进行优化获得初步模型,随后对双饼线圈进行分组,利用电磁场有限元分析软件对内外三阶梯和内外八阶梯结构磁体的磁场径向分量、储能大小进行了分析,研究了相邻双饼线圈不同厚度间距对磁体带材利用率和磁体储能密度的影响.由仿真计算结果可知,内外多阶梯结构磁体均能够提升磁体的性能,其本质是减小磁场径向分量.通过对计算结果比较分析最后获得了储能磁体几何结构的最优配置.The r component of the magnetic flux density （Br） in SMES makes the superconducting tapes have a lower utilization rate and the magnet have a lower energy storage density. To solve this problem, a method to obtain geometry configuration optimization of high temperature SMES is proposed. MATLAB is applied to get an optimization of an YBCO（HTS）single solenoid SMES so a primary model is obtained. The double pancakes were divided into groups, the magnetic field flux density distribution and energy storage of inside and out step-shaped magnets with three and eight steps were analyzed by using finite element method （FEM）software. To get an optimization of geometry configuration, the influence on the tape＇s utilization rate and energy storage density created by different distance between each double pancake is studied. The simulation results indicate that the multiple step- shaped optimization method can enhance the performance of SMES and the essence of this method is reducing the Br. A geometry configuration optimization of high temperature SMES is obtained by comparing and analyzing the simulation results.

关 键 词：高温超导储能 磁场径向分量 多阶梯 有限元优化 

分 类 号：TM26[一般工业技术—材料科学与工程]