35kJ／7kW直接冷却高温超导磁储能系统  

35 kJ/7 kW Conduction-cooled High T_c Superconducting Magnet Energy Storage

作　　者：石晶[1] 唐跃进[1] 周羽生[1] 戴陶珍[1] 魏斌[1] 任丽[1] 陈敬林[2] 王惠龄[1] 徐德鸿[3] 李敬东[1] 王少荣[1] 程时杰[1] 卢亚峰[4] 秦红三[5] 

机构地区：[1]华中科技大学超导电力科学技术研究与发展中心,湖北省武汉市430074 [2]中国科学院等离子物理研究所,安徽省合肥市230031 [3]浙江大学电气工程学院,浙江省杭州市310027 [4]西北有色金属研究院,陕西省西安市710016 [5]湖南省电力公司,湖南省长沙市410001

出　　处：《电力系统自动化》2006年第21期99-102,106,共5页Automation of Electric Power Systems

基　　金：国家高技术研究发展计划(863计划)资助项目(2002AA306311);国家重点基础研究发展计划(973计划)资助项目(2004CB217906)。~~

摘　　要：介绍了直接冷却高温超导磁储能(SMES)系统(35 kJ／7 kW)的总体结构和基本试验结果。该系统主要由超导磁体、低温系统、功率调节系统和监控系统组成。实验结果表明．通过直接冷却将储能磁体成功冷却到了20 K以下;储能磁体的直流临界电流达到150 A,临界储能量84 kJ,磁体中心场强4．5 T;监控系统和变流器能控制SMES与系统快速独立地在四象限进行有功功率和无功功率交换;在电力系统动态模拟实验中,SMES能有效抑制电力系统中因发电机机端短路故障引起的功率振荡。The basic components and the experiment of the first conduction-cooled high Tc superconducting magnetic energy storage （35 kJ/7 kW） in China is described. The SMES system is composed of superconducting magnet, cooling system, power conditioning system and monitored control system. The following conclusions can be achieved through the system experiment： the temperature of superconducting magnet could reach under 20 K; the critical current of superconducting magnet is 150 A, the maximum energy storage is 84 kJ, and the maximum central magnetic field is 4.5 T; monitored control system and power conditioning system can respond very rapidly to exchange active and reactive power independently in four quadrants with ac power system. In the dynamic simulated experiment of power system, the SMES can effectively damp the power oscillation due to the fault of line to ground at the generator terminal.

关 键 词：高温超导磁储能 直接冷却 超导磁体 电力系统稳定 

分 类 号：TM917[电气工程—电力电子与电力传动]