220kV磁通约束型超导限流器技术经济性分析  

Technical and economic analysis of a 220kV flux-coupling-type superconducting fault current limiter

作　　者：曹智伟 任丽[1] 严思念 张宇[1] 徐颖[1] 唐跃进[1] 石晶[1] 李敬东[1] Cao Zhiwei;Ren Li;Yan Sinian;Zhang Yu;Xu Ying;Tang Yuejin;Shi Jing;Li Jingdong(R&D Center of Applied Superconductivity,School of Electrical and Electronic Engineering,State Key Lab.of AEET,Huazhong University of Science and Technology,Wuhan 430074,China)

机构地区：[1]华中科技大学强电磁工程与新技术国家重点实验室,电气与电子工程学院超导中心,武汉430074

出　　处：《低温与超导》2020年第11期23-26,40,共5页Cryogenics and Superconductivity

基　　金：国家电网科技项目(SGTYHT/16-JS-198)资助。

摘　　要：电力系统的规模不断发展,短路电流的水平随之进一步提高,超过现有断路器的遮断容量。磁通约束型超导限流器是一种具有快速响应速度且能有效抑制短路电流的装置。针对220 kV电力系统,选取了磁通约束型超导限流器的参数,并通过电磁仿真计算了限流器的应力和温度,基于全寿命周期理论评估了限流器的经济性,分析了限流器带来的技术性效益。结果表明,限流器的应力和温度满足安全运行条件,该限流器能给系统带来明显的技术性效益,但其经济性较差,随着超导材料技术的进步,其应用前景会更加广阔。With the development of power system,the short-circuit current level is continuously increasing and exceeding the interrupting capacity of the existing breaker.The flux-coupling-type superconducting fault current limiter(FC-SFCL)is a device with fast response speed and can effectively suppress short-circuit current.For the 220 kV power system,the parameters of the limiter were selected.Then electromagnetic simulations were performed to obtain the stress and temperature of the limiter.Economic analysis was carried out based on life cycle cost,and the technical benefits were analyzed.The results show that the tress and temperature can meet safe operating conditions,and the limiter can bring obvious technical benefits to the system,but it is not economical.With the advancement of superconducting material technology,its prospect will be broader.

关 键 词：磁通约束型超导限流器 电磁设计 技术性分析 经济性分析 

分 类 号：TM471[电气工程—电器]