Study on AC Loss Reduction in HTS Coil for Armature Winding of AC Rotating Machines
Study on AC Loss Reduction in HTS Coil for Armature Winding of AC Rotating Machines
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DOI：
10.1109/tasc.2016.2535208
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发表时间：
2016-06-01
影响因子：
1.8
通讯作者：
Nakamura, Taketsune
中科院分区：
文献类型：
--
作者：
Fukui, Satoshi;Tsukamoto, Shogo;Nakamura, Taketsune
本文介绍了降低交流旋转电机电枢绕组高温超导线圈交流损耗的基础研究。本文采用一种简化模型，模拟了交流旋转电机的一部分分布式电枢绕组。为了减少交流损耗，我们研究了一种方法，通过在线圈绕组周围布置磁性材料来减少施加到线圈中的磁带表面的垂直磁场。磁场数值计算表明，在铁芯槽内线圈绕组周围布置磁性材料，垂直磁场明显减小。为了研究插入磁性材料对交流损耗降低的影响，我们制作了测量装置，使用测试HTS线圈由Bi2223磁带和YBCO磁带缠绕，结合叠层铁芯。通过改变磁性材料的排列，测量测试线圈中的传输交流损耗。测量结果表明，在铁芯槽内的线圈绕组周围使用磁性材料可以很好地降低交流损耗。
The fundamental study on the ac loss reduction in high-temperature superconducting (HTS) coils for armature windings of ac rotational machines is presented in this paper. In this paper, a simplified model that simulates a part of the distributed armature winding of ac rotational machines is used. For the ac loss reduction, we study a method to reduce the perpendicular magnetic field applied to the tape surface in the coil by arranging a magnetic material around the coil winding. The numerical magnetic field calculation shows that the perpendicular magnetic field clearly decreases by arranging the magnetic material around the coil winding in the slot of the iron core. To investigate the effect of the insertion of the magnetic material on the ac loss reduction, we fabricate the measurement setup using the test HTS coils wound by a Bi2223 tape and a YBCO tape, combined with the laminated iron core. The transport ac losses in the test coils are measured by changing the arrangement of the magnetic material. The measurement results demonstrate well the ac loss reduction by use of the magnetic material around the coil winding in the slot of the iron core.