Stator Shape Design Method for Improving Power Density in PM Motor
Stator Shape Design Method for Improving Power Density in PM Motor
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DOI：
10.1109/tmag.2017.2702563
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发表时间：
2017-05
影响因子：
2.1
通讯作者：
N. Soda;M. Enokizono
中科院分区：
文献类型：
--
作者：
N. Soda;M. Enokizono
本文提出了一种提高小型永磁电机功率密度的定子形状设计方法。为了准确计算铁损，本文采用二维有限元法（FEM）对一台电机进行了分析，并引入了E&S模型。此外，为了准确计算铜损，采用有限元法将外部电路方程与电磁场方程耦合求解。无论定子形状是否改变，都可以通过正确评估电机的损耗和重量来正确计算功率密度。结果表明，我们的分析技术是有用的电机的定子形状设计方法，以提高功率密度。
In this paper, we propose a stator shape design method for improving power density in a small permanent magnet motor. In order to calculate iron loss correctly, we analyze a motor by using 2-D finite element method (FEM) in which an E&S model is introduced. Moreover, external circuit equations are solved coupled with equations in electromagnetic field by FEM to calculate copper loss correctly. It is possible to calculate power density correctly by evaluating loss and weight of a motor correctly whether stator shape is changed. As a result, we show that our analysis technique is useful as a shape design method of a motor’s stator for improving power density.