Conceptual design for HTS coil in superconducting electromagnet for Maglev

Chang Young Lee, Jung Min Jo, Bubyoung Kang, Young Jea Han, Duck Kweon Bae, Yong Soo Yoon, Yoon Do Chung, Sung Yul Chu, Young Jin Hwang, Tae Kuk Ko

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


This study deals with a conceptual design for a high temperature superconductor (HTS) coil fabricated with YBCO wire in a prototype HTS-electromagnet (HTS-EM) model for the electromagnetic suspension (EMS)-based Maglev. Because the size of the HTS coil and the power it consumes during operation are very critical factors in designing the HTS-EM, we focused on the number of coil turns and the operating conditions needed to generate the required magneto-motive force (MMF) effectively. The winding geometry of the sample HTS coil with the largest Ic value was selected for use in this study. To determine the operating condition corresponding to the number of coil turns, we produced the operating profile for the load current of DC current source and the Ic value of HTS coil. From the profile, the optimal number of coil turns to minimize the operating power is determined to be in the range of 1200 to 1400 turns. And the HTS coil should be operated with the current of 37 to 43 A at the cooling temperature of 73 to 76 K.

Original languageEnglish
Article number5677617
Pages (from-to)1560-1563
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Issue number3 PART 2
Publication statusPublished - 2011 Jun

Bibliographical note

Funding Information:
Manuscript received August 01, 2010; accepted November 11, 2010. Date of publication December 30, 2010; date of current version May 27, 2011. This research was supported by the Korean Ministry of Knowledge Economy under Grant PK10001A. C. Y. Lee, J. M. Jo, B. Kang, and Y. J. Han are with Korea Railroad Research Institute, Woram Dong, Uiwang Si 437-757, Korea (e-mail: D. K. Bae is with the Department of Safety Engineering, Chungju National University, Chungju 380-702, Korea. Y. S. Yoon is with the Department of Electrical Engineering, Ansan College of Technology, 671 Choji-Dong, Danwon-Gu, Ansan 425-792, Korea. Y. D. Chung is with the Department of Electrical Engineering, Suwon University, Suwon 445-743, Korea. S. Y. Chu, Y. J. Hwang, and T. K. Ko are with the Department of Electrical and Electronic Engineering, Yonsei University, 134 Sinchon-dong, Seoul 120-749, Korea. Color versions of one or more of the figures in this paper are available online at Digital Object Identifier 10.1109/TASC.2010.2093862

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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