ADDITIONAL AC LOSSES DUE TO ALTERNATING MAGNETIC FIELD COMPONENT LONGITUDINAL TO STRAND AXIS IN THE ARMATURE WINDING OF FULLY SUPERCONDUCTING GENERATORS

被引:10
作者
Funaki, K. [1 ]
Kanetaka, H. [1 ]
Ueda, H. [1 ]
Yoshiya, F. [1 ]
Iwakuma, M. [1 ]
Takeo, M. [1 ]
Yamafuji, K. [1 ]
机构
[1] Kyushu Univ 36, Fac Engn, Higashi Ku, 6-10-1 Hakozaki, Fukuoka 812, Japan
关键词
Electric generators - Electric losses - Electric windings - Magnetic field effects - Superconducting cables;
D O I
10.1109/77.233685
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The armature winding of fully superconducting generators will be constructed by multiply-stacked cables of multifilamentary superconducting strands. In the superconducting cable exposed to an alternating transverse magnetic field, additional a.c. losses(called as longitudinal losses) are generated by field component longitudinal to the strand, because the angle between the axes of the strand and the final cable changes spatially with periods of cabling pitches. The longitudinal losses depend upon the structure of the cable, the direction and pitch in each level of cabling and so on. The additional losses are evaluated in electromagnetic environments of the armature winding. The structure of the cable is discussed to minimize the total a.c. loss under a stability condition.
引用
收藏
页码:122 / 125
页数:4
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