用于感应电动机电磁降噪的转子缺口

2015 International Conference on Sustainable Mobility Applications, Renewables and Technology (SMART) Pub Date : 2015-11-01 DOI:10.1109/SMART.2015.7399261

Gui-yu Zhou, Jian-Xin Shen

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引用次数: 19

摘要

本文提出了一种通过在感应电动机转子铁心处开槽来降低电磁噪声的新方法。该策略的目的是减少转子槽磁导谐波引起的振动。首先，介绍了电磁降噪技术的原理。然后，采用有限元法计算了5.5kW样品型感应电机和相应改进型感应电机的麦克斯韦力谐波和振动谱。最后，通过对两种感应电机样品的振动和噪声谱进行测试，验证了该方法的有效性。结果表明，与原电机相比，改进后的电机总体声压级(SPL)降低了4.6 dB(A)左右。

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Rotor notching for electromagnetic noise reduction of induction motors

This paper presents a new method by notching the induction motor (IM) rotor core to reduce the electromagnetic noise. The aim of the proposed strategy is to decrease the vibration caused by the rotor slot permeance harmonics. Firstly, principle of such electromagnetic noise reduction technique is presented. Then, finite element method (FEM) is used to calculate the Maxwell force harmonics and the vibration spectra of a 5.5kW sample induction motor and a corresponding modified motor. Finally, experimental results are given to validate the proposed technique, by testing the vibration and acoustic noise spectra of the two sample induction motors. It is shown that the modified motor has about 4.6 dB(A) reduction of the overall sound pressure level (SPL) comparing with the original one.

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来源期刊

2015 International Conference on Sustainable Mobility Applications, Renewables and Technology (SMART)

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