基于近似解析法的超导储能磁体设计  

Magnet Design of Superconducting Magnetic Energy Storage Based on Approximate Analytical Method

作　　者：玄永伟 朱英伟[1] 李兆鑫 王静[1] 杨浩瀚 雷勇[1] XUAN Yongwei;ZHU Yingwei;LI Zhaoxin;WANG Jing;YANG Haohan;LEI Yong(Sichuan University,School of Electrical Engineering,Chengdu 610065)

机构地区：[1]四川大学电气工程学院,成都610065

出　　处：《低温物理学报》2020年第2期103-109,共7页Low Temperature Physical Letters

摘　　要：降低超导储能磁体的研制成本一直是控制超导磁储能系统(Superconducting Magnetic Energy Storage,SMES)总成本的重要手段之一.本文考虑在一定磁体结构参数范围内,磁体产生的最大磁场值可以采用级数进行表示,磁体的电感值可以采用线性函数表示,给出了超导储能磁体磁场能量的近似解析表达式,提出了一种基于近似解析法的超导储能磁体设计方法.该方法以储能磁体的线材用量最小作为设计目标,在给定超导线材参数和临界电流特性曲线,以及磁体储能总量要求的情况下,依据此方法可快速的得到成本最优时所对应的磁体结构参数.将近似解析法优化和采用传统的有限元软件Ansys仿真优化进行对比分析,结果表明采用近似解析法进行磁体优化更加方便快捷,节省了大量计算时间.Reducting the cost of superconducting magnets has always been one of the important means to control the cost of superconducting magnetic energy storage systems(SMES).In this paper,considering that the maximum magnetic field value generated by the magnet can be expressed by series and the inductance value of the magnet can be expressed by linear function within a certain range of structural parameters of the magnet,the approximate analytical expression of magnetic field energy of the superconducting energy storage magnet is given,and a design method of superconducting energy storage magnet based on the approximate analytical method is proposed.The design objective of this method is to minimize the cost of the wire.Given the parameters of the superconducting wire,the critical current characteristic curve and the total magnet energy storage,the structure parameters of the magnet correspondingto the optimal cost can be obtained quickly according to this method.The optimization of approximate analytical method and the finite element analysis software Ansys EM are compared,the results show that the former is more convenient and faster,and saves a lot of calculation time.

关 键 词：近似解析法 超导储能磁体 优化设计 ANSYS 

分 类 号：TM26[一般工业技术—材料科学与工程]