Acoustic Noise of Brushless DC Motors Induced by Electromagnetic Torque Ripple

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

Acoustic Noise of Brushless DC Motors Induced by Electromagnetic Torque Ripple

Vol. 17, No. 4, pp. 963-971, Jul. 2017

10.6113/JPE.2019.17.4.963

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Abstract

Torque ripple is one of the major sources inducing vibration and noise in brushless DC motors. This is especially true in applications such as the spindle motors used in hard disk drives. However, the relationship between torque ripple and acoustic noise/vibration is quite complicated. This paper presents a way to investigate this relationship with acoustic noise measurement and analysis. Results obtained with three different drive modes are used in the analysis. The results show that the acoustic noise analysis is very helpful in designing a high-performance drive strategy for BLDC motors.

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Cite this article

[IEEE Style]

K. Xia, Z. Li, J. Lu, B. Dong, C. Bi, "Acoustic Noise of Brushless DC Motors Induced by Electromagnetic Torque Ripple," Journal of Power Electronics, vol. 17, no. 4, pp. 963-971, 2017. DOI: 10.6113/JPE.2019.17.4.963.

[ACM Style]

Kun Xia, Zhengrong Li, Jing Lu, Bin Dong, and Chao Bi. 2017. Acoustic Noise of Brushless DC Motors Induced by Electromagnetic Torque Ripple. Journal of Power Electronics, 17, 4, (2017), 963-971. DOI: 10.6113/JPE.2019.17.4.963.