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首页> 外文会议>2016 Asia-Pacific Magnetic Recording Conference Digest >Analysis of acoustic noise from electromagnetic torque ripple for brushless DC motor
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Analysis of acoustic noise from electromagnetic torque ripple for brushless DC motor

机译：无刷直流电动机电磁转矩脉动的噪声分析

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摘要

This paper introduces a new way to detect the torque ripple from acoustic noise information. Acoustic noise of the brushless DC motor operating without load is studied in this paper to find the effect of electromagnetic torque ripples on the sound pressure spectrum. One anechoic chamber is employed in the noise measurement system to provide a relative quiet circumstance for the prototype motor. Several tests with various control strategies demonstrate the relationship between torque ripple and acoustic noise. From the results of experiment, the frequency points in sound pressure spectrum which react with the torque ripple are found. The torque ripple of the brushless DC motor can be deduced from the sound pressure level of these frequency points by further research.
机译：本文介绍了一种从噪声信息中检测转矩脉动的新方法。为了研究电磁转矩脉动对声压谱的影响，本文研究了无负载直流无刷电动机的噪声。在噪声测量系统中使用了一个消声室，以为原型电机提供相对安静的环境。多种控制策略的测试表明了转矩脉动和声噪声之间的关系。从实验结果中，发现声压谱中与转矩脉动反应的频率点。通过进一步研究，可以从这些频率点的声压级推导出无刷直流电动机的转矩脉动。

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  • 来源
  • 会议地点 Seoul(KR)
  • 作者

    Kun Xia; Jing Lu; Bin Dong; Chao Bi;

  • 作者单位

    Department of Electrical Engineering, University of Shanghai for Science and Technology, Shanghai, China;

    Department of Electrical Engineering, University of Shanghai for Science and Technology, Shanghai, China;

    Department of Electrical Engineering, University of Shanghai for Science and Technology, Shanghai, China;

    Department of Electrical Engineering, University of Shanghai for Science and Technology, Shanghai, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    torque; acoustic noise; brushless DC motors;

    机译：扭矩;声噪声;无刷直流电动机;

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