Design of IPMSM Applying V-Shape Skew Considering Axial Force Distribution and Performance Characteristics According to the Rotating Direction
Design of IPMSM Applying V-Shape Skew Considering Axial Force Distribution and Performance Characteristics According to the Rotating Direction
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DOI：
10.1109/tasc.2016.2543267
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发表时间：
2016-03
影响因子：
1.8
通讯作者：
Gyeong-Jae Park;Yong-Jae Kim;Sang-Yong Jung
中科院分区：
文献类型：
--
作者：
Gyeong-Jae Park;Yong-Jae Kim;Sang-Yong Jung
斜转是减小转矩脉动和齿槽转矩的常用方法。然而，当施加斜度时，会产生意想不到的轴向力。为了减小轴向力，采用v型斜向作为解决方案之一。具体来说，当施加V-skew时，磁通分布会随着旋转方向的变化而变化，从而导致性能的差异。对于电机单向旋转的应用，可以利用这种现象产生质量更好的扭矩和更小的损耗的动力。本文针对内置式永磁同步电机在转子上施加v型斜向的制造难点，设计了内置式永磁同步电机定子的v型斜向。在有限元分析的基础上，验证了斜交效应和轴向力的减小。并根据旋转方向对转矩、轴向力和损耗进行了对比分析。所有计算和分析都是基于二维和三维有限元分析进行的。
Skew is a common method to reduce torque ripple and cogging torque. However, when skew is applied, unexpected axial force is produced. To reduce axial force, V-skew is used as one of the solutions. Specifically, when V-skew is applied, the magnetic flux distribution changes according to the rotating direction, which causes a difference in the performance. For the application in which the motor rotates in one direction, this phenomenon can be used to produce power with better quality torque and less losses. In this paper, the interior permanent-magnet synchronous motor (IPMSM) is designed by applying a V-skew to the stator, taking into consideration the manufacturing difficulties with applying a rotor skew to the IPMSM. The skew effect and the reduction of axial force are verified based on finite-element analysis. Moreover, torque, axial force, and losses are comparatively analyzed according to the rotating direction. All calculations and analysis are conducted based on 2-D and 3-D finite-element analysis.