Optimization and Cold Test of a Triaxial 2G HTS Power Cable With High Current Capacity
Optimization and Cold Test of a Triaxial 2G HTS Power Cable With High Current Capacity
复制标题
大电流容量三轴2G高温超导电力电缆的优化与冷态试验
DOI：
10.1109/tasc.2021.3051401
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发表时间：
2020
影响因子：
1.8
通讯作者：
V. Vysotsky
中科院分区：
文献类型：
--
作者：
S. Fetisov;Vasily S. Zubko;S. Zanegin;A. Nosov;V. Vysotsky
三轴高温超导交流电力电缆，其中包括三个高温超导相缠绕在一个单一的电缆内的一个核心，正在考虑的最佳解决方案，为低和中等电压。这样的设计允许节省昂贵的HTS导体并增加传输的功率密度。很难通过增加其工作电压来增加三轴电缆的传输容量，从而增加相间的绝缘厚度。另一种方法是通过在三轴电缆的每相中使用多层结构来增加操作电流。这一任务需要复杂的优化分析和精确的制造技术。根据我们以前的研究，我们开发和测试了三轴电缆原型，每相两层的ReBCO线。电缆的最佳参数（绞距、相直径等）已确定使用数值模拟方法开发。已对电缆进行了直流和交流测试。在结果中，提供一个均匀的电流分布在三轴电缆，其中每一个阶段由两个层，已被证明的可行性。这是迄今为止制造和测试的最紧凑的三轴高温超导电力电缆，其外径仅为1.24 mm，每相电流高达4 kA。该电缆的三相预期功率传输可高达1034 MW。
Triaxial HTS AC power cables, that incorporates three HTS phases wound around a single core within a single cable is considering the optimal solution for low and medium voltages. Such a design permits to save expensive HTS conductor and to increase the power density transmitted. It is difficult to increase the transmission capacity of a triaxial cable by increasing its operating voltage and therefore, insulation thickness between phases. The other way is to increase the operation current by using a multilayer structure in each phase of the triaxial cable. This task demands a complicated optimization analysis and a precise manufacturing technology. Following our previous studies, we developed and tested the triaxial cable prototype with two layers per phase made of ReBCO wire. The optimal parameters of the cable (twist pitch, diameters of phases, etc.) have been determined using the numerical simulation methods developed. DC and AC tests of the cable has been performed. In the result, the feasibility to provide a uniform current distribution in a triaxial cable, each phase of which consists of two layers, has been demonstrated. With the outer diameter of ∼24 mm only, this is the most compact triaxial HTS power cable manufactured and tested up to date with currents up to 4 kA per phase. The anticipated power transfer with three phases of this cable can be as large as ∼34 MW.