用于高场磁体失超分析的新型快速电磁与电热软件
A novel and fast electromagnetic and electrothermal software for quench analysis of high field magnets
AI总结：
本文开发一款C++耦合电磁-电热仿真软件，结合MEMEP变分法与有限差分并计入屏蔽电流，实现32 T以上全尺寸REBCO磁体的快速失超可靠性分析。
摘要：
高场超导REBCO磁体包含若干具有许多匝的线圈。对于这些磁体，电热失超是磁体设计者需要考虑的问题。因此，需要一种快速且准确的软件，以数值方式对全尺寸磁体的整体性能进行建模。高温超导体可以采用不同技术进行电磁和热（有限元法）分析。然而，同时对超导体的电磁和电热行为进行建模非常耗时，尤其是对于非绝缘或金属绝缘线圈。此外，大多数现有方法忽略了屏蔽电流，而屏蔽电流是REBCO磁体的一个重要特征。我们开发了一款用C++编写的新型软件，它分别使用基于最小电磁熵产生（MEMEP）的变分方法和有限差分法执行耦合的电磁与电热分析。所开发的软件考虑了屏蔽电流，并在SuperEMFL项目下应用于场强超过32 T的轴对称全尺寸磁体，以评估标准运行期间的热失超可靠性。我们表明，与金属绝缘线圈相比，采用非绝缘线圈的磁体在抗失超方面更可靠。此外，边界处的真实冷却条件对此类模拟至关重要。所开发的模型可用于对超导高场磁体进行快速而完整的电磁与电热分析。
英文摘要：
High-field superconducting REBCO magnets contain several coils with many turns. For these magnets, electro-thermal quench is an issue that magnet designers need to take into account. Thus, there is a need for a fast and accurate software to numerically model the overall performance of full-scale magnets. High temperature superconductors can be modeled using different techniques for electro-magnetic and thermal (finite element method) analysis. However, it takes a lot of time to model the electro-magnetic and electro-thermal behavior of superconductors simultaneously, especially for non-insulated or metal-insulated coils. In addition, most of the available methods ignore screening currents, which are an important feature of REBCO magnets. We have developed a novel software programmed in C++, which performs coupled electro-magnetic and electro-thermal analysis using variational methods based on Minimum Electro-Magnetic Entropy Production (MEMEP) and Finite Difference, respectively. The developed software, which takes screening currents into account, is applied to axi-symmetric fullscale magnets of more than 32 T field strength under the SuperEMFL project for thermal quench reliability during standard operation. We show that the magnets incorporating non-insulated coils are more reliable against quench than the metal insulated coils. Also, realistic cooling conditions at boundaries is essential for such simulations. The model developed can be used for a quick and complete electro-magnetic and electro-thermal analysis of superconducting high field magnets.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
