Abstract
Stacked superconducting strips are widely used in electrical equipment to improve their electrical characteristics, but AC loss can seriously affect the performance of this equipment. Therefore, developing methods to reduce AC loss has long been a research hotspot in the field of superconductivity. This paper establishes a 2D densification model for stacking superconducting strips to accelerate simulation speed, and analyzes the current and magnetic field amplitude dependence characteristics of AC loss in stacked superconducting tapes based on the model. The results indicate that the amplitude of the external magnetic field has a significant impact on the total loss in the stacked strip, but a significant change in AC loss as a result of the increase in the amplitude of the transmission current is only possible when the external magnetic field intensity is less than 0.03 T. In addition, the variation in the total AC loss in the stacked superconducting tapes and the factors involved were analyzed by varying stacking conditions such as interval and number of layers.
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Funding
The funding was provided by Supported by Key Research and Development Program of Shaanxi Province (Grant Number: 2023-YBGY-368).
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QZ and SC conceived the idea, established the model, wrote the main part of the manuscript, and analyzed the results of the simulation experiment. JW and YZ participated in the establishment of the model and the planning and implementation of the simulation experiment and helped write the manuscript. All authors read and approved the final manuscript.
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Zhou, Q., Chen, S., Wang, J. et al. Analysis of AC Loss Characteristics in Stacked Superconducting Strips in Complex Environments. J. Electron. Mater. 53, 177–187 (2024). https://doi.org/10.1007/s11664-023-10739-6
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DOI: https://doi.org/10.1007/s11664-023-10739-6