中国电机工程学报2012，Vol.32Issue(13)：159-165,7.
应用第2代高温超导体的冷绝缘超导电缆输电导体层间均流技术
Current Sharing Technology in Transmission Conductors of Cold Dielectric High Temperature Superconducting Cables Using Second-generation HTS Wires
摘要
Abstract
Multi-layer structure in a cold dielectric （CD） high temperature superconducting （/-ITS） cable has a large current carrying capability. With the increase of the number of layers, the unevenly distributed currents caused by the skin effect in each conductor＇s layer will lead to the increment of the loss and a decline in transmission performance. An optimal design model for improving the current sharing among superconducting layers was proposed by using particle swarm optimization （PSO） algorithm with dynamically changing inertia weight （DCW） and was applied to design of a 1 kin, ll0kV/3 kA CD HTS AC power cable based on the second generation HTS YBCO tapes. Meanwhile, the configuration parameters and the currents of the conductor and the shield layers were calculated by using an equivalent circuit model of HTS cables and considering the constraint factors of the electric and magnetic field. Comparing the design results before and after optimization, we find that the maximum unbalanced rate of current in each layer is less than 3.5%, and there is a uniform current distribution among the conductor and shield layers. At last, the current test results of a demo HTS cable show the current sharing target is achieved very well, and this optimal design method is validated.关键词
钇钡铜氧涂层导体/冷绝缘高温超导电缆/均流/粒子群优化模型/数学模型Key words
YBCO/cold dielectric high temperature superconducting (CD HTS) cable/current sharing/particle swarm optimization algorithm (PSO) model/mathematical model分类
信息技术与安全科学引用本文复制引用
诸嘉慧,宝旭峥,丘明..应用第2代高温超导体的冷绝缘超导电缆输电导体层间均流技术[J].中国电机工程学报,2012,32(13):159-165,7.基金项目
国家电网公司科技项目（2010-374）. （）
