Investigation and comparison of AC losses on stabilizer-free and copper stabilizer HTS tapes
| Autor: | Jun Ma, Tim Coombs, Lin Fu, Jianzhao Geng, Jing Li, Qihuan Dong, Heng Zhang, Boyang Shen, Chao Li, Xiuchang Zhang |
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| Přispěvatelé: | Shen, Boyang [0000-0001-8169-6588], Ma, Jun [0000-0001-6232-1254], Coombs, Timothy [0000-0003-0308-1347], Apollo - University of Cambridge Repository |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Multiphysics Energy Engineering and Power Technology chemistry.chemical_element Substrate (electronics) 01 natural sciences copper stabilizer law.invention stabilizer-free high temperature superconducting (HTS) tape law 0103 physical sciences Eddy current Electrical and Electronic Engineering Composite material 010306 general physics 010302 applied physics Superconductivity non-magnetic substrate AC loss Condensed Matter Physics Copper eddy-current Electronic Optical and Magnetic Materials Hysteresis chemistry Ferromagnetism Alternating current |
| Zdroj: | Physica C: Superconductivity and its Applications. 541:40-44 |
| ISSN: | 0921-4534 |
| DOI: | 10.1016/j.physc.2017.07.013 |
| Popis: | This paper presents the measurement and simulation of Alternating Current (AC) losses on the Stabilizer-free and Copper Stabilizer High Temperature Superconducting (HTS) Tapes: SuperPower SF12100 and SCS12050. The AC loss measurement utilised electrical method to obtain overall losses with AC transport currents. The 2D H-formulation by COMSOL Multiphysics has been used to simulate the real geometry and multi-layer HTS tapes. Ferromagnetic AC losses of substrate have been assumed to be ignored as the substrates of SF12100 and SCS12050 are non-magnetic. Hysteresis AC losses in the superconducting layer, and eddy-current AC losses in copper stabilizer, silver overlayer and substrate were concerned in this investigation. The measured AC losses were compared to the AC losses from simulation, with 3 cases of different AC frequency 10, 100, and 1000 Hz. The eddy-current AC losses of copper stabilizer at frequency 1000 Hz were determined from both experiment and simulation. The estimation of AC losses with frequency at 10,000 Hz was also carried out using simulation method. Finally, the frequency dependence of AC losses from Stabilizer-free Tape and Copper Stabilizer Tape were compared and analysed. |
| Databáze: | OpenAIRE |
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