论文部分内容阅读
高温超导磁储能系统(SMES)是一种功率型的储能装置,本文介绍了国内自主研发的150 kJ/100 kW直接冷却高温超导磁储能系统的总体结构和基本试验结果。高温超导磁体由Bi2223/Ag和YBCO两种超导带材绕制而成,通过直接冷却方式将储能磁体成功冷却到了17 K左右。经测试,储能磁体的直流临界电流达到180 A,临界储能量157 k J,磁体中心场强4.7 T;该SMES能快速独立地在四象限进行有功功率和无功功率交换,响应速度小于10 ms;在电力系统动态模拟实验中,SMES有效抑制了电力系统中因发电机机端短路故障引起的功率振荡。
High-temperature superconducting magnetic energy storage system (SMES) is a power-type energy storage device. This paper presents the overall structure and basic test results of a self-developed 150 kJ / 100 kW direct-cooling HTS magnetic energy storage system developed in China. High-temperature superconducting magnets are made of two types of superconducting tapes, Bi2223 / Ag and YBCO. They are successfully cooled to about 17 K by direct cooling. After testing, the DC critical current of the energy storage magnet reaches 180 A, the critical energy storage is 157 kJ, and the center field strength of the magnet is 4.7 T. The SMES can quickly and independently exchange active power and reactive power in the four quadrants with the response speed less than 10 ms; In the simulation of power system dynamics, SMES effectively suppresses the power oscillation in the power system caused by the short-circuit fault of generator terminals.