考虑磁体动态特性的高温超导磁储能磁体设计  

Design of High Temperature Superconducting Magnet in SMES Considering Magnet Dynamic Characteristics

作　　者：徐颖[1] 唐跃进[1] 任丽[1] 刘洋[1] 廖于翔 何清 金涛 

机构地区：[1]强电磁工程与新技术国家重点实验室(华中科技大学电气与电子工程学院),武汉430074 [2]国网湖北电力公司电力科学研究院,武汉430074

出　　处：《南方电网技术》2015年第12期65-69,共5页Southern Power System Technology

摘　　要：超导磁体是超导磁储能系统(SMES)的核心部件,其优化设计可以提高SMES的经济性和运行性能。提出了一种考虑磁体动态特性的高温超导磁储能磁体设计方法,该方法以有限元方法为基础,选取遗传算法作为优化工具,对高温超导磁体的内径、单饼匝数和双饼个数进行了优化。该方法将超导磁体的优化分为了两个部分,一次优化以磁体的用线量为优化目标,二次优化将交流损耗低为优化目标。最后用此方法对储能容量为150 k J的高温超导磁储能磁体进行了优化设计,经过两次优化后的150 k J磁体方案兼具低用线量和低交流损耗的优点。Superconducting magnet is the core of a superconducting magnetic energy storage （SMES） system, and its optimal design can improve the economical efficiency and the operating performance of SMES. This paper proposes a design method of high temperature superconducting （HTS） magnet considering the magnet dynamic characteristics. The finite element method and genetic algorithm are used in the design. Optimal variables are the inner radius of the magnet, the turns of a single pancake and the numbers of the doub- le pancake. The optimization procedure is divided into two parts. The first part is optimizing the length of the HTS tapes, and the sec- ond part is optimizing the AC loss based on the results of the first part. Last, a 150 kJ HTS magnet is optimizd with this method, and the final magnet scheme has the advantages of less usage of the HTS tapes and low AC loss.

关 键 词：高温超导磁体 储能系统 优化设计 临界电流 

分 类 号：TM725[电气工程—电力系统及自动化] TM471