冷绝缘高温超导电缆电磁特性计算与分析

Electromagnetic characteristics calculation and analysis of cold dielectric high temperature superconducting cable

为了获得超导电缆电磁特性变化规律,针对冷绝缘高温超导电缆本体的基本结构,采用安培定律推导了超导电缆导体层和屏蔽层自感、互感的计算公式。通过110 kV冷绝缘超导电缆的实例计算,研究了超导电缆导体层、屏蔽层的内径、绕向角、绕制方向三个结构参数对电磁特性的影响,总结了电感参数变化规律。

In order to obtain the electromagnetic characteristics of cold dielectric （CD） high temperature superconducting （HTS） cable, based on the structure of CD HTS cable, the expressions of the self - inductance and the mutual inductance of the conductor layer and the shielding layer in CD HTS cable were given by using Ampere＇s law. For the example of llOkV CD HTS cable, the effects of the structural parameters, such as inner diameter, winding angle and winding direction, on the electromagnetic characteristics were studied and the inductance characteristic variations were also proposed. Conclusions in this paper provide the preparation for the future researches on the current balance of each conductor layer in CD HTS cable.