齿槽效应转矩
超导电机
气隙(管道)
定子
风力发电
材料科学
电磁线圈
转子(电动)
发电机(电路理论)
超导电性
机械工程
超导磁储能
有限元法
电气工程
超导磁体
物理
结构工程
工程类
复合材料
凝聚态物理
功率(物理)
量子力学
作者
Yingzhen Liu,Ronghai Qu,Jin Wang
标识
DOI:10.1109/tasc.2013.2292309
摘要
Superconducting direct-drive wind generators have been a research focus, since needs for wind energy development are more and more urgent. Generator stator can be with air-gap winding or iron teeth. Different stator concepts could yield different mechanical, thermal, and electromagnetic performances. This paper compares different stator configurations for 12-MW superconducting direct-drive wind generators with the help of finite element analysis software. Ferromagnetic materials in superconducting machines can help reduce reluctance in magnetic circuits and save costs of superconducting coils in rotor. Moreover, iron teeth could bring cogging torque and vibrations in generators, which can be greatly reduced with air-gap windings. In addition, iron teeth can lead to different losses, including damping shell, copper, and iron losses.
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