Procedure for Optimization of Interior Permanent Magnet Synchronous Motors with Concentrated Windings by Considering End-Leakage Flux
Procedure for Optimization of Interior Permanent Magnet Synchronous Motors with Concentrated Windings by Considering End-Leakage Flux
复制标题
考虑端漏磁通的集中绕组内置式永磁同步电机优化程序
DOI：
10.1541/ieejjia.8.820
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发表时间：
2019
影响因子：
1.7
通讯作者：
Hiroki Narushima
中科院分区：
文献类型：
--
作者：
K. Yamazaki;Hiroki Narushima
提出了一种电枢绕组集中的内置式永磁同步电动机永磁体形状和取向的优化设计方法。在所提出的程序中，二维有限元分析与电枢电压方程耦合使用，以考虑在端部绕组的漏磁通。方程中的端部漏感是通过三维有限元分析预先确定的。通过使用该程序，可以在实际的计算时间内优化电机的转子形状。首先，通过比较测量和计算的电机特性的分析的有效性得到确认。然后，在电机中的永磁体的最佳形状和取向进行了讨论，使用所提出的优化程序的结果。据透露，端部漏磁通的考虑是必不可少的集中绕组的铁芯长度相对较短的直径相比，特别是在弱磁控制的电动机的特性估计。一个优化的转子，在高速下减少铁损，而不显着恶化的其他重要特性也得到了建议的优化程序。
An optimization procedure is proposed to determine the shapes and orientations of permanent magnets in interior permanent magnet synchronous motors with concentrated armature windings. In the proposed procedure, 2D finite element analysis coupled with the armature voltage equation is used to take into account the leakage flux at the end windings. The end leakage inductance in the equation is determined by 3D finite element analysis in advance. By using this procedure, the rotor shape of the motor can be optimized within a practical computational time. First, the validity of the analysis is confirmed by comparing measured and calculated characteristics of the motor. Then, the optimal shape and orientation of the permanent magnets in the motor are discussed using the results of the proposed optimization procedure. It is revealed that the consideration of the end-leakage flux is indispensable to estimate the characteristics of the motors with concentrated windings whose core length is relatively short as compared to the diameter, particularly under flux weakening control. An optimized rotor that reduces the iron loss at high speeds without considerable deterioration of the other important characteristics is also obtained by the proposed optimization procedure.