二维涡流磁场等效电路的矩阵分析方法

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摘要基于矩阵分析思想,利用系统回路法和节点法分别推导了包含有多匝线圈和实心导体的二维涡流磁场的精确等效电路模型,推导了考虑涡流效应等效电路的阻抗计算公式,以及场路耦合问题中总损耗的计算公式,在等效电路模型中,具有涡流效应的实心导体用支路电路代替,最后将提出的方法应用于实际变压器的计算。

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	作者相关文章
	刘慧娟
	张竞雄
	陈艺端
	傅为农

关键词 ：涡流, 等效电路, 矩阵分析方法, 有限元法, 阻抗, 损耗

Abstract：Based on matrix analysis methods,an accurate equivalent circuit model of a 2- dimentional(2-D) eddy-current magnetic field coupled with stranded windings and solid conductors is developed by using loop method and nodal method separately. The formulas of impedance computation and the formulas of the total power loss computation for magnetic field-circuit coupled problems are deduced. In the proposed work,each solid conductor is represented by circuit branches and the effect of eddy-current can be fully included in the equivalent circuit model. An example of a transformer is given to show the effectiveness of the proposed method.

Key words： Eddy-current equivalent circuit matrix analysis method finite element method impedance power loss

收稿日期: 2012-09-04 出版日期: 2013-12-11

PACS:

O242.21

基金资助:香港理工大学科研项目基金（PolyU 5176/09E）资助项目。

引用本文:

刘慧娟，张竞雄，陈艺端，傅为农. 二维涡流磁场等效电路的矩阵分析方法[J]. 电工技术学报, 2013, 28(7): 73-80. Liu Huijuan,Zhang Jingxiong,Chen Yiduan,W. N. Fu. Matrix Analysis Method of Equivalent Circuit in 2-D Eddy-Current Magnetic Field. Transactions of China Electrotechnical Society, 2013, 28(7): 73-80.

链接本文:

http://dgjsxb.ces-transaction.com/CN/Y2013/V28/I7/73

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