项目名称: 考虑磁畴壁移动的异常涡电流损分析方法研究
项目编号: No.51307122
项目类型: 青年科学基金项目
立项/批准年度: 2014
项目学科: 电工技术
项目作者: 关伟民
作者单位: 武汉大学
项目金额: 24万元
中文摘要: 整个研究的总体构思是从节能的角度出发,使用具有更高精度的基于磁场分析的铁损计算开发和设计高性能电气设备,从而进一步提高电气设备的效率。本研究针对由逆变器电源驱动的电气设备铁损增加的主要因素之一,由于磁畴壁移动而产生的异常涡电流损,运用一种考虑磁畴壁移动的物理模型明确磁畴构造和异常涡电流损的关系,并提高铁损分析的准确性。最终通过这种建模分析方法对由逆变器电源驱动的电抗器模型进行分析,确定其有效性和实用性。
中文关键词: 磁畴壁;异常涡电流损;硅钢;有限元法;
英文摘要: From the aspect of energy-saving, it is necessary to analyse the iron losses acurately during the design and development of high efficiency electric machines. This study focus on a physical model which implies the relation between the structure of magnetic domain and anomalous eddy current losses. Applying this model, the anomalous eddy current loss caused by the displacement of magnetic domain wall can be calculated more acurately for the iron losses analyses in invertor driven electric machines. In order to verify the practicability and accuracy of the physical model, the calculation of the anomalous eddy current loss considering the displacement of magnetic domain wall is performed to analyse the iron losses of an experimental reactor driven by invertor.
英文关键词: magnetic domain wall;anomalous eddy current loss;silicon steel;finite element method;