Abstract
The magnetization loss of multilayer high-temperature superconductor (HTS)-coated conductors (CC)’s will affect the temperature, current carrying capacity, and refrigeration cost of HTS CCs, which has become an important factor affecting the performance of superconducting electrical equipment. At present, the research on the magnetization loss of multilayer HTS CCs is mainly focused on the superconducting layer. The magnetization loss of each layer of multilayer HTS CCs and its variation with magnetic field are not clear. Based on the structure of multilayer HTS CCs, a multilayer structure model is constructed. By changing the magnetic field frequency and magnetic field intensity, the variation law of magnetization loss of each layer is analyzed in detail. The results show that with the increase of magnetic field frequency and magnetic field intensity, the variation of magnetization loss of each layer is obviously different. The magnetization loss of copper layer increases significantly and gradually replaces superconducting layer as the main source of magnetization loss, which also shows that the magnetization loss of non-superconducting layer is the fundamental reason for the significant increase of magnetization loss in high frequency and strong magnetic field environment. This paper comprehensively analyzes the variation law of each layer loss of multilayer HTS CCs, and its research conclusion provides a basis for solving engineering application problems such as improving equipment performance and reducing refrigeration cost in the environment of strong alternating magnetic field.
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Acknowledgements
This work was supported in part by Subject Peak Plan of **’an University of Science and Technology-Mining Superconducting Motor Research Platform Project (No. 2018GY-2-12) and in part by Natural Science Basic Research Program of Shaanxi-Shanmei Joint Fund (Program No. 2019JLM-51).
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YZ and TS established the model, wrote the main part of the manuscript, and analyzed the results of the simulation experiment. QG participated in the establishment of the model and the planning and implementation of the simulation experiment. QG and WG helped to write some manuscripts. JH, TC, and QZ participated in the coordination of the study and reviewed the manuscript. All authors read and approved the final manuscript.
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Zhang, Y., Su, T., Guo, Q. et al. Investigation on variation and influencing factors of magnetization loss of HTS-coated conductor under alternating high magnetic field. J Mater Sci: Mater Electron 33, 10194–10206 (2022). https://doi.org/10.1007/s10854-022-08009-y
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DOI: https://doi.org/10.1007/s10854-022-08009-y