摘要
有气隙磁元件的气隙参数设计对绕组交流损耗影响很大,但目前还缺少测量其绕组损耗的有效方法。对有气隙磁元件绕组损耗的产生机理及相关电磁理论进行分析的基础上,提出一种基于气隙等效绕组磁动势替代气隙磁压降的绕组损耗测量方法,通过测试对比验证该方法能有效地评估绕组交流损耗的各种影响因素。进一步采用电磁场三维有限元仿真验证测量结果的准确性,为有气隙磁元件的气隙设计以及绕组损耗分析提供一种有效的测量或评估对比方法,也可以用于从其他方法测量得到的磁元件总损耗中扣除绕组损耗,从而获得磁芯损耗。
The AC winding losses are greatly affected by the design of air-gap parameters in gapped magnetic components. However, there are no effective methods to test their AC winding losses till now. After introducing the mechanism and related electromagnetic theory of AC winding losses of gapped magnetic components, a novel evaluation and test method for AC winding losses is proposed, which is based on the equivalence principle of MMF of a winding in the air-gap to replace the magnetic voltage drop across the air-gap. The test method is approved to be effective for various factors which influent the AC winding losses. And furthermore, the accuracy is also approved by comparing the test results with 3-D Finite Element Method simulation by An soft Maxwell. The proposed method can be taken as a simple and effective measurement method for gapped magnetic components winding losses and the method can also be used to eliminate the winding losses from the total losses tested by some methods to get the core losses.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2015年第7期1749-1755,共7页
Proceedings of the CSEE
基金
国家自然科学基金项目(51277032)
福建省自然科学基金项目(2012D092)~~
关键词
磁元件
绕组损耗
气隙
高频
magnetic
winding loss
air-gap
high-frequency
