摘要
利用漏磁通补偿法改进了TEAM(testing electromagnetic analysis methods)基准问题21(TEAM Problem 21)杂散损耗测量模型的结构及其新结构的实验方案,提出了一种在强漏磁场作用下,导磁钢板和屏蔽组合结构的杂散损耗测量方法。比较了两种不同磁屏蔽结构在强漏磁场作用下磁屏蔽表面磁通密度分布情况以及在这两种情况下导磁钢板和磁屏蔽组合结构的杂散损耗。考虑硅钢片表面绝缘膜对磁场分布情况的影响以及硅钢片内部的涡流,在有限元分析中,对立式磁屏蔽结构作均匀化处理,板式磁屏蔽分片处理,对在强漏磁场作用下,磁屏蔽内部的磁场分布情况进行了精细模拟。
The structure of TEAM Problem21 model and its experiment scheme of the stray loss is improved by using magnetic flux compensation method. The measurement method for the stray loss of the combined structure of magnetic steel plate and magnetic shield under high leakage magnetic field is proposed. The distribution of the magnetic field on the surface of two kinds of magnetic shields and the stray loss are compared under high leakage magnetic field. Considering the effect of insulation film on the distribution of magnetic field and eddy current in the silicon steel sheet, homogenization method is used for stand type shield structure and modeling plane type with individual sheet in finite element analysis. The magnetic field distribution of magnetic shield is modeled in detail.
出处
《电工技术学报》
EI
CSCD
北大核心
2013年第6期21-27,共7页
Transactions of China Electrotechnical Society
基金
中国博士后科学基金资助项目(2011M500534)
中国博士后科学基金特别(2012T50242)资助项目
关键词
杂散损耗
漏磁通补偿法
TEAM问题21
磁屏蔽
Stray loss
leakage magnetic flux compensation method
TEAM Problem21
magnetic shield
