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Characteristic Comparison for the Various Winding Methods of HTS Magnets

2012; IEEE Council on Superconductivity; Volume: 22; Issue: 3 Linguagem: Inglês

10.1109/tasc.2012.2186549

1558-2515

Hyun Chul Jo, Sukjin Choi, Jin Bae Na, Jae Young Jang, Young Jin Hwang, Hyung Jun Kim, Min Cheol Ahn, Yoon Do Chung, Ho Min Kim, Yong Soo Yoon, Kang-Sik Ryu, Yeong-Chun Kim, Haigun Lee, Tae Kuk Ko,

Frequency Control in Power Systems

Recently various high temperature superconducting (HTS) conductors have been commercialized in the power applications. While a BSCCO becomes tape or wire, others coated conductors (CC) are tapes. An HTS magnet utilized with these conductors can be fabricated as a form of pancake winding or layer winding. In the case of HTS magnet using a thin and rectangular tape, the pancake winding method is satisfied in the practical cases because of its suitable features. However, one of the disadvantages of this winding method is increasing brands and splices. From this point of view, we propose a layer winding method using an HTS tape and fabricated HTS layer coils. To verify the feasibility of the proposed winding method, critical current and over-current tests are investigated in liquid nitrogen and the results are compared with those of pancake coils. In addition, operating characteristics on the condition of various winding tensions are analyzed.