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Modeling of Three-Dimensional Vector Magnetic Property of Laminated Iron-Core Using Homogenization Theory

利用均质化理论模拟叠片铁芯三维矢量磁特性

基本信息

批准号：
16560243
负责人：
MATSUO Tetsuji
金额：
$ 2.37万
依托单位：
Kyoto University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2004
资助国家：
日本
起止时间：
2004 至 2006
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16560243/
关键词：
homogenization laminated silicon steel sheet vector hysteretic property micromagnetics excess eddy-current loss grid computing stop model play model ベクトルヒステリシスモデル並列AMG法

项目摘要

(1)Measurement of vector property of silicon steel sheetA rotational single sheet tester using a stator of an induction motor is developed. A circular specimen with slits is proposed, which achieves a uniform flux density distribution. Two-dimensional magnetic properties under rotating and alternating flux conditions are measured.(2)Study of scalar and vector hysteretic modelsScalar stop and play models are generalized to improve their representation capability for hysteretic property of silicon steel sheets. Representation theorems of the generalized models are derived and identification methods are developed. Two types of vector stop and play models are examined : one is a geometrical extension of scalar model and the other is a superposition of scalar models. Identification methods for the latter type of stop and play models are developed. Their rotational hysteresis losses are derived. These vector models are generalized to improve their rotational hysteretic properties.(3)AC hysteresis model using homogenization methodA homogenized model based on the Pry and Bean model is developed to represent the AC hysteretic properties of silicon steel sheets exhibiting excess eddy-current loss. The developed model improves the evaluation accuracy of eddy-current loss and the representation of AC BH loops under the sinusoidal magnetic-flux condition. The developed model also accurately represents AC BH loops having minor loops.(4)Development of micromagnetic computation techniquesMicromagnetic simulations are carried out to describe relations between microscopic magnetic-domain behavior and macroscopic complex magnetic properties of ferromagnetic materials. Parallel micromagnetic simulation codes solving the LLG equations for PC cluster and grid computing are developed. To develop a mesoscopic model for magnetic-domain behavior, an improved domain structure model is developed and compared with micromagnetic simulations.

(1)硅钢片矢量特性的测量研制了一种基于感应电机定子的旋转单片测试仪。提出了一种带狭缝的圆形试样，该试样的磁通密度分布均匀。测量了旋转和交变磁通条件下的二维磁性能。(2)标量和矢量滞回模型的研究推广了标量停止和播放模型，以提高其对硅钢片滞回性能的表示能力。推导了广义模型的表示定理，并给出了识别方法。研究了两种类型的矢量停止和播放模型：一种是标量模型的几何扩展，另一种是标量模型的叠加。开发了后一种停止和播放模型的识别方法。推导了它们的旋转迟滞损耗。对这些矢量模型进行了推广，以提高其旋转滞回性能。(3)基于均质化方法的交流迟滞模型建立了基于Pry和Bean模型的均质化模型，以表征涡流损耗过大的硅钢片的交流迟滞特性。该模型提高了正弦磁通条件下涡流损耗的评估精度和交流BH回路的表示。所建立的模型还能准确地表示具有小回路的交流BH回路。(4)微磁计算技术的发展通过微磁模拟来描述铁磁材料微观磁畴行为与宏观复磁性能之间的关系。开发了求解PC集群和网格计算的LLG方程的并行微磁仿真代码。为了建立磁畴行为的介观模型，提出了一种改进的磁畴结构模型，并与微磁模拟进行了比较。