Study of Cryogenic Conduction Cooling Systems for an HTS SMES
Study of Cryogenic Conduction Cooling Systems for an HTS SMES
复制标题
HTS SMES 低温传导冷却系统的研究
DOI：
10.1109/tasc.2007.898491
复制
发表时间：
2007
影响因子：
1.8
通讯作者：
H. Kim
中科院分区：
文献类型：
--
作者：
H. Yeom;Y. Hong;S. Park;T. Seo;K. Seong;H. Kim
超导磁储能（SMES）比使用电池的不间断电源（UPS）响应速度更快、经济、环保。而且SMES不仅具有同时控制有功和无功功率的能力，而且由于超导磁体不存在电池所存在的退化问题，因此具有较长的使用寿命。因此，SMES 是替代使用电池的 UPS 的候选者。 SMES无一例外地需要低温系统。传导冷却系统结构简单、重量轻、体积小，非常适合高温超导（HTS）SMES。低温传导冷却系统需要绝缘、真空、热分析等技术。传导热主要通过冷却器口、接入口、支撑杆等传递，辐射热通过真空室、热屏蔽和高温超导线圈表面传递。计算通过低温恒温器的传导和辐射的热负荷。估算并测量了辐射屏蔽热负荷、高温超导线圈和传导铜板的温度。观察到冷却辐射屏蔽的低温泵效应。评估电流引线和 HTS 线圈热负荷，以保持 HTS 线圈温度低于 20 K。
Superconducting magnetic energy storage (SMES) is more fast response, economical, and environment-friendly than uninterruptible power supply (UPS) using the battery. And the SMES not only has the ability to control active and reactive power simultaneously, but also has a long life time because the superconducting magnet does not have degradation problem which the battery has. Therefore, the SMES is a candidate for instead of the UPS using the battery. The SMES needs cryogenic system without exception. A conduction cooling system that has a simple, light and small structure is well adapted to high temperature superconducting (HTS) SMES. The cryogenic conduction cooling system is needed some technologies such as insulation, vacuum, and thermal analysis. Conduction heat is mainly transferred by cooler port, access port, support bar, etc., and radiation heat is transferred by vacuum chamber, thermal shield and HTS coil surface. The heat loads through the conduction and radiation of cryostat are calculated. Radiation shield heat load, temperature of HTS coil and conduction copper plate are estimated and measured. A cryopumping effect of cooled radiation shield was observed. A current lead and HTS coil heat load was evaluated to maintain HTS coil temperature was under 20 K.