Investigation of Elimination Techniques for Screening-Current-Induced Magnetization in High Temperature Superconducting Tapes Utilizing Abnormal Transverse-Field Effect

2014 Fiscal Year Final Research Report

• Project/Area Number: 24360110
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Power engineering/Power conversion/Electric machinery
• Research Institution: Kyushu University
• Principal Investigator: KAJIKAWA Kazuhiro 九州大学, 超伝導システム科学研究センター, 准教授 (10294894)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 高温超伝導体 / テープ線材 / 遮蔽電流 / 磁化 / 異常横磁界効果

Outline of Final Research Achievements

It was experimentally verified that the in-plane screening currents induced in the tapes constituting layer-wound and pancake coils with high temperature superconducting (HTS) tapes can be removed by applying small AC magnetic fields using additional degaussing coils on the basis of the abnormal transverse-field effect. It was also confirmed that the screening currents induced in the HTS tape windings for full-scale NMR insert coils can be reduced for the application of small external AC fields.

Free Research Field

超伝導工学