The integration of superconducting magnetic energy storage (SMES) into the power grid can achieve the goal of storing energy, improving energy quality, improving energy utilization, and enhancing system stability. The early SMES used low-temperature superconducting magnets cooled by liquid helium immersion, and the complex low-temperature cooling system greatly limited the promotion and application of such devices. SMES based on high temperature superconductivity (HTS) materials can operate in the temperature range of 15–30 K, which simplifies the cooling system and reduces the cooling loss, and greatly improves the operating efficiency and stability of the cooling system. In this paper, the overall design of a 5 MW/10 MJ SMES based on state of the art HTS materials is achieved. The structural parameters of YBCO and MgB₂ cables are introduced and the structural parameters of energy storage magnet are analyzed. And the cooling scheme for SMES is provided.

中文翻译：

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液氢冷却5 MW/10 MJ混合高温超导储能磁体总体设计

将超导磁储能（SMES）并入电网可以达到储存能量、改善能源质量、提高能源利用率、增强系统稳定性的目的。早期的SMES采用液氦浸没式冷却的低温超导磁体，复杂的低温冷却系统极大地限制了此类装置的推广应用。基于高温超导（HTS）材料的SMES可在15~30 K的温度范围内运行，简化了冷却系统，减少了冷却损失，大大提高了冷却系统的运行效率和稳定性。在本文中，实现了基于最先进的高温超导材料的 5 MW/10 MJ SMES 的总体设计。_{介绍了YBCO和MgB 2}电缆的结构参数，并对储能磁体的结构参数进行了分析。并提供了SMES的冷却方案。