低速直驱式大功率永磁同步电动机振动特性研究

发布时间：2018-02-11 20:11

本文关键词： 振动特性噪声固有频率有限元　出处：《电机与控制学报》2017年07期 　论文类型：期刊论文

【摘要】：电机电磁噪声的主要来源是定子铁心和机壳的振动,转子偏心也会产生不平衡磁拉力,并导致电动机产生振动和噪声。采用低速直驱方式时,振动会直接传递到与电机系统相连的其他设备上,更易造成部件的疲劳或损坏。为预知低速直驱式大功率永磁同步电动机的振动特性,限制其振动和噪声水平。基于有限元方法,对该类电机定子进行了谐响应数值分析,并完成了转子的不平衡响应分析与计算。随后通过振动试验测试的方法,验证了理论分析的正确性。最终揭示出该类电机振动响应特性,进而为其减振降噪和结构优化设计提供必要的理论依据。
[Abstract]:The main source of the electromagnetic noise of the motor is the vibration of the stator core and the casing. The rotor eccentricity will also produce unbalanced magnetic pull force, which will lead to the vibration and noise of the motor. The vibration will be transmitted directly to other equipment connected to the motor system, which is more likely to cause fatigue or damage of the components. In order to predict the vibration characteristics of the low-speed direct-drive high-power permanent magnet synchronous motor (PMSM), Based on the finite element method, the harmonic response of the stator of this kind of motor is numerically analyzed, and the unbalanced response of the rotor is analyzed and calculated. Finally, the vibration response characteristics of this kind of motor are revealed, which provides the necessary theoretical basis for its vibration and noise reduction and structural optimization design.
【作者单位】：浙江大学电气工程学院;黑龙江八一农垦大学信息技术学院;
【分类号】：TM341

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