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http://dx.doi.org/10.9723/jksiis.2019.24.2.015

Characteristic Analysis of Modularized HTS Field Coils for a Superconducting Wind Power Generator According to Field Coil Structure  

Tuvdensuren, Oyunjargal (창원대학교 전기공학과)
Go, Byeong-Soo (창원대학교 전기공학과)
Sung, Hae-Jin (창원대학교 전기공학과)
Park, Min-Won (창원대학교 전기공학과)
Yu, In-Keun (창원대학교 전기공학과)
Publication Information
Journal of Korea Society of Industrial Information Systems / v.24, no.2, 2019 , pp. 15-23 More about this Journal
Abstract
High temperature superconducting (HTS) generators for wind power systems are attractively researched with the advantages of high efficiency and smaller size compared with conventional generator. However, the HTS generators have high Lorentz force problem, which acts on HTS field coils due to their high current density and magnetic field. This paper deals with characteristic analysis of the modularized HTS field coil for a 750 kW superconducting wind power generator according to field coil structure. The modularized HTS field coil structure was designed based on the electromagnetic and mechanical analysis results obtained using a 3D finite element method. The electromagnetic force of the module coil was also analyzed. As a result, the perpendicular and maximum magnetic fields of the HTS coils were 2.5 T and 3.9 T, respectively. The maximum stress of the supports was less than the allowable stress of the glass-fiber reinforced plastic material, and displacement was within the acceptable range. The design specifications and the results of the HTS module coil structure can be effectively utilized to develop large-scale superconducting wind power generators.
Keywords
HTS Module Coil; Lorentz Force; Superconducting Wind Power Generator; Superconducting Coil Stress;
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