Estimation of AC loss in cylindrical superconductor with ripple current

作     者：E.S. Otabe K. Ohashi M. Kiuchi T. Kawahara S. Yamaguchi 

作者机构：Faculty of Computer Science and Systems Engineering Kyushu Institute of Technology Fukuoka 820–8502 Japan Center of Applied Superconductivity and Sustainable Energy Research Chubu University Aichi 487–8501 Japan 

出 版 物：《Physics Procedia》 

年 卷 期：2012年第27卷

页      面：248-251页

学科分类：07[理学] 

主　　题：DC transmission cable AC loss ripple current Irie-Yamafuji model cuprate high temperature superconductor 

摘      要：The loss energy density (AC loss) in cylindrical superconductor with ripple current based on Irie-Yamafuji model in which the magnetic fiel dependence of critical current density is taken into account is theoretically calculated for design of DC transmission cable system. It is confirme that the AC loss does not changed for the cases with and without DC current when the critical current does not depend on magnetic fiel which is corresponding to Bean-London model. On the contrary, it is found that there is current region where the AC loss becomes smaller than that for the case without DC current. The AC loss of ripple current is seems to be enough small in layered structure of DC transmission cable made by thin tape superconductor.