【摘要】 超导电缆具有线路损耗低、传输容量大、走廊占地小、环境友好等诸多优点，可有效提高大容量电网的安全性和稳定性。介绍了冷绝缘超导电缆本体设计思路、优化方法以及设计时需掌握的原则，并以110 kV/3 kA等级的超导电缆为例，通过结构参数优化设计，绕制完成电缆短样，并在低温@77 K环境下进行了交、直流通流能力测试，检验了优化设计的合理性，为类似结构超导电缆的参数设计提供了借鉴和参考。更多还原

【Abstract】 The superconductor cable has many advantages, such as low line losses, large transmission capacity, small corridor occupation and great environmental friendliness, which can effectively improve the safety and stability of large-capacity power grids. The paper first introduces design thoughts, optimization methods and basic principles of the cold dielectric superconductor cable body. Then, taking the 110 kV/3 kA superconductor cable as an example, it optimizes structural parameters, winds the short sample of the cable and conducts AC and DC flow capacity tests under the low temperature @77 K to verify the rationality of this optimization design, which provides reference for the parameter design of superconductor cables with similar structure.更多还原