Design Method of SMES Magnet Considering Inhomogeneous Superconducting Properties of YBCO Tapes
Design Method of SMES Magnet Considering Inhomogeneous Superconducting Properties of YBCO Tapes
复制标题
考虑YBCO带非均匀超导性能的SMES磁体设计方法
DOI：
10.1109/tasc.2014.2304241
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发表时间：
2014-02
影响因子：
1.8
通讯作者：
Shaotao Dai
中科院分区：
文献类型：
--
作者：
Qingquan Qiu;Daqian Liu;Guomin Zhang;Shaotao Dai
超导储能磁体的设计是一个复杂的过程，在优化过程中涉及到稳定性、磁体结构、非线性等诸多问题。本文首先通过一系列实验研究了所研究的YBCO超导带材的B-J特性和非均匀超导特性。为了选择最佳的结构，需要最少的YBCO磁带，我们提出了一种新的阶梯形状的SMES磁体结构，并比较了不同的阶梯形状与矩形截面的磁体模型的设计。结果表明，内阶梯形和外阶梯形截面模型分别在20 K和77 K时需要最少的YBCO带材。采用模拟退火算法作为优化算法，避免局部最优解，寻找全局最优解。最后，我们优化了一个磁铁原型作为一个例子，考虑所有本文得到的结果。
Design of SMES magnet is a complicated process containing many problems such as stability, magnet configurations, and nonlinear characteristic during optimization. In this paper, we first studied the characteristics of considered YBCO tape such as B-J characteristics and inhomogeneous superconducting properties through a series of experiments. To select the best configuration that needs the least YBCO tape, we proposed a new stepped shape configuration of SMES magnet and compared the design of different stepped shape with rectangular cross-section magnet models. The results showed the inner stepped shape and outer stepped shape cross-section models need the least YBCO tape at 20 K and 77 K, respectively. Simulated annealing (SA) is adopted as optimization algorithm to avoid local optimal solution and find global optimal solution. Finally, we optimized a magnet prototype as an example considering all the obtained results in this paper.
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