Development of superconducting fault current limiting transformer (SFCLT) with the functions of fault current suppression and system stability improvement
Development of superconducting fault current limiting transformer (SFCLT) with the functions of fault current suppression and system stability improvement
复制标题
具有抑制故障电流和提高系统稳定性功能的超导故障限流变压器（SFCLT）的研制
DOI：
10.1109/tdc.2002.1178337
复制
发表时间：
2002
期刊：
影响因子：
--
通讯作者：
N. Hayakawa
中科院分区：
文献类型：
--
作者：
H. Okubo;H. Kagawa;N. Hayakawa
我们一直在开发一种兼有变压器和故障限流器功能的超导故障限流变压器（SFCLT）。本文首先分析了三相500 kV/275 kV、625 MVA模型电力系统中SFCLT的运行特性，并通过EMTP仿真对主要参数进行了优化。其次，在仿真的基础上，我们使用NbTi超导线材设计并制作了三相、275/105 V、6.25 kVA的SFCLT实验缩小模型。第三，我们讨论了将模型SFCLT引入瞬态网络分析仪的实验结果。最终表明，仿真结果和实验结果阐明了SFCLT在未来超导电力系统中兼具故障电流抑制和提高系统稳定性功能的有效性。
We have been developing a superconducting fault current limiting transformer (SFCLT) with the functions of both transformers and fault current limiters. In this paper, firstly, we analyzed the operating characteristics of SFCLT introduced into a model power system with 3-phase, 500 kV/275 kV, 625 MVA and optimized the main parameters by EMTP simulation. Secondly, we designed and fabricated an experimental scale-down model of SFCLT with 3-phase, 275/105 V, 6.25 kVA, using NbTi superconducting wire, on the basis of simulations. Thirdly, we discussed the experimental results of the model SFCLT introduced into a transient network analyzer. It was finally revealed that simulation results and experimental results clarified the effectiveness of SFCLT having both functions of the fault current suppression and the system stability improvement in a future superconducting power system.