The importance of interfilamentary barrier resistance in YBCO coated conductor to minimize ac losses
The importance of interfilamentary barrier resistance in YBCO coated conductor to minimize ac losses
复制标题
YBCO 涂层导体中丝间势垒电阻对于最大限度减少交流损耗的重要性
DOI：
10.1063/1.1472595
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
W. J. Carr
中科院分区：
文献类型：
--
作者：
C. Oberly;G. Rhoads;P. Barnes;L. Long;D. Scott;W. J. Carr
YBCO涂层超导带材可以被优化以最小化同步发电机电枢绕组和空芯变压器典型的侵蚀性磁场和频率环境中的交流损耗。优化的导体可以通过创建包含高势垒电阻的多导体结构来实现，该结构允许实际的扭转节距以最小化耦合损耗。阻挡电阻的特点和几种方法，创造高的阻挡电阻的多相YBCO带材的实际材料加工方法正在探索。在功率应用中，讨论了势垒电阻和扭转节距之间的折衷以使交流损耗最小化。由于在发电机和Transformer绕组的扭曲要求的设计限制进行了讨论的复丝YBCO磁带。
YBCO coated superconducting tapes can be optimized to minimize the ac loss in aggressive magnetic field and frequency environments typical of synchronous generator armature windings and air core transformers. Optimized conductors can be realized by creating a multifilamentary structure incorporating high barrier resistance that allows a practical twist pitch to minimize coupling losses. Barrier electrical resistance is being characterized and several methods for creating high barrier resistance in multifilamentary YBCO tapes by practical material processing methods are being explored. The tradeoff between barrier resistance and twist pitch to minimize ac loss is discussed for power applications. Design limitations due to the twist requirement in generator and transformer windings are discussed for the multifilament YBCO tape.