摘要
报道了新开发的纳米晶Fe73.5Cu1Nb2V1Si13.5B9合金退火态的高频损耗性能．采用三维拟合方法替代传统的二维拟合，可具有更小的估算误差．经过分析得出，在频率为30～1000kHz和幅值磁通密度为0．01～1．0T范围内，高频动态矫顽力Hc和高频铁损近似与幅值磁通密度Bm和频率成幂函数关系，而常用高频区与超高频区的铁损行为存在一定的差异．同时，给出了幅值磁通密度和频率乘积恒定时高频铁损与频率的关系式，为变压器的实际设计应用提供了参考．
The high frequency magnetic properties including coercivity and core loss of a newly developed as-annealed nanocrystalline Fe73.5 Cu1Nb2V1 Si13.5 B9 alloy were presented. A new fitting method of three dimension fitting was used instead of two-dimension one to investigate the dependence of high frequency coercivity Hc and core loss P on amplitude flux density Bm from 0.01 T to 1.0 T and frequency f between 30 kHz and 1 000 kHz. Meanwhile, the dependence of high frequency core loss P and frequency f was obtained while the value of Bm·f was constant that can give the reference for designing power transformer.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2006年第8期1084-1087,共4页
Journal of Tongji University:Natural Science
基金
上海市纳米科技攻关资助项目(0352nm057)
关键词
纳米晶合金
高频铁损
矫顽力
nanocrystalline alloy
high frequency core loss
coercivity
