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首页> 外文会议>International Conference on Ecological Vehicles and Renewable Energies >Analysis of noise reduction in a low speed and high torque PMSM with tooth concentrated windings
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Analysis of noise reduction in a low speed and high torque PMSM with tooth concentrated windings

机译：带齿集中绕组的低速大转矩PMSM的降噪分析

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The paper deals with acoustic noise in permanent magnet synchronous motors (PMSM) with tooth concentrated armature windings. In particular, the noise emitted by this kind of motors is investigated with reference to high-torque low-speed applications. In these cases, due to the high number of poles, the stator yoke is usually thin and it is characterized by low natural frequencies that could lead to undesired amplifications of mechanical resonance phenomena. The paper analyzes the effects of variations of stator yoke thickness on vibrations and noise emitted by the machines. The aim is to investigate the relation between noise emission and stator yoke thickness without any other variation of the machine configuration. The analysis is led by the mathematical model of PMSM, used to characterize analytically the time behavior of the radial forces that excite the machine vibrations; FEM analysis and numerical extrapolation of the machine acoustic response are performed by the software ???Manatee???.
机译：本文涉及带有齿集中电枢绕组的永磁同步电动机（PMSM）的噪声。特别是，参考高转矩低速应用研究了这种电动机发出的噪声。在这些情况下，由于极数很多，定子磁轭通常很薄，其特点是固有频率低，这可能导致不希望的机械共振现象放大。本文分析了定子磁轭厚度的变化对电机发出的振动和噪声的影响。目的是研究噪声排放与定子磁轭厚度之间的关系，而无需对机器配置进行任何其他更改。该分析由PMSM的数学模型进行，该模型用于分析表征激发机器振动的径向力的时间行为;机器声学响应的有限元分析和数值外推由“海牛”软件进行。

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