基于定点谐波平衡法的铁心磁滞与损耗特性分析

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摘要利用叠片铁心模型进行正弦励磁和直流偏磁励磁下的实验,得到相应的磁滞回线和铁心损耗。在基于B-H-M的磁场本构关系中引入定点磁阻率ν_FP,解决了数值计算中传统磁阻率ν的不连续性问题。利用基于损耗函数的磁滞模型模拟无偏磁和有偏磁条件下铁心的磁滞效应。将定点技术与损耗函数磁滞模型相结合,并应用于谐波平衡有限元计算,在考虑磁滞效应的基础上,对绕组励磁电流和铁心内的非线性磁场进行计算。基于计算结果,得到了各种励磁条件下铁心内不同区域的磁滞特性和损耗特性,分析了不同励磁形式对铁心磁滞特性和损耗分布的影响。

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	赵小军
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	李琳
	赵志刚
	刘刚
	李慧奇

关键词 ：直流偏磁, 损耗函数, 定点磁阻率, 磁滞效应

Abstract：The laminated core is used to obtain hysteresis loops and iron loss under sinusoidal and DC-biasing excitations. The fixed-point reluctivity based on the B-H-M magnetic constitutive relation is presented to overcome the discontinuity of traditional reluctivity in numerical computation. The consuming function hysteresis model is used to simulate hysteresis loops under sinusoidal and DC-biasing magnetization. The fixed-point technique combined with consuming function hysteresis model is applied in the harmonic-balance finite element method to compute the magnetizing current and nonlinear magnetic field considering the hysteresis effects. Hysteresis and loss characteristics of the laminated core are obtained from the computational results, which is analyzed to investigate how the hysteresis effect and loss distribution are affected by different magnetizations.

Key words： DC bias consuming function fixed-point reluctivity hysteresis effect

收稿日期: 2014-01-25 出版日期: 2014-08-05

PACS:

TM153

基金资助:国家自然科学基金（51307057,51107026）,北京市自然科学基金（3133038）,河北省自然科学基金（E2013502323）和高等学校博士学科点专项科研基金（20130036120011）资助项目

作者简介: 赵小军男,1983年生,博士,讲师,研究方向为电磁场理论及其应用。崔灿女,1986年生,硕士研究生,研究方向为电磁场理论及其应用。

引用本文:

赵小军, 崔灿, 李琳, 赵志刚, 刘刚, 李慧奇. 基于定点谐波平衡法的铁心磁滞与损耗特性分析[J]. 电工技术学报, 2014, 29(7): 10-18. Zhao Xiaojun, Cui Can, Li Lin, Zhao Zhigang, Liu Gang, Li Huiqi. Analysis of the Hysteresis and Loss Characteristics in the Laminated Core by Fixed-Point Harmonic-Balanced Method. Transactions of China Electrotechnical Society, 2014, 29(7): 10-18.

链接本文:

http://dgjsxb.ces-transaction.com/CN/Y2014/V29/I7/10

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