Parametric study for conductor design of KSTAR PF coils |
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Authors: | Cheon Seog Yoon Qiuliang Wang Myungkyu Kim Keeman Kim Dong-Ryul Lee |
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Affiliation: | 1. Department of Mechanical Engineering, Hannam University, 306-791, Taejon, Korea 2. Samsung Advanced Institute of Technology, Energy Lab., 305-380, Taejon, Korea 4. School of Automotive and Mechanical Engineering, Catholic University of Taegu, Kyungsan, 712-702, Taegu, Korea
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Abstract: | Large superconducting magnets such as ITER (International Thermonuclear Experimental Research) or KSTAR (Korean Superconducting Tokamak Advanced Research) magnet system adopted a cable-in-conduit conductor (CICC) using a forced-flow cooling system. Main optimization criteria for the conductor design of superconducting magnet system are stability margin and CICC cooling requirements. A zero-dimensional method is applied for the calculation of stability and the conductor optimization. In order to increase conductor performance, three different strands, ITER HP-I and HP-TI, and KSTAR HP-III, are tested. The strand characteristics of KSTAR HP-III are measured in the Samsung’s PPMS and Jc measurement system, and applied for this study. Also, the strand diameters, 0.81 mm and 0.78 mm are considered for this study, due to design change. Based on this result, the proposed configuration of CICC has been fabricated. |
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