Synchronous Periodic Frequency Modulation Based on Interleaving Technique to Reduce PWM Vibration Noise

Wentao Zhang; Yongxiang Xu; Jingwei Ren; Jianyong Su; Jibin Zou

Synchronous Periodic Frequency Modulation Based on Interleaving Technique to Reduce PWM Vibration Noise

Vol. 19, No. 6, pp. 1515-1526, Nov. 2019

10.6113/JPE.2019.19.6.1515

High-frequency PWM noise

Interleaving technique

Paralleled three-phase voltage source inverters

Periodic frequency modulation

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Abstract

Ear-piercing high-frequency noise from electromagnetic vibrations in motors has become unacceptable in sensitive environments, due to the application of pulse width modulation (PWM) and in consideration of switching losses. This paper proposed a synchronous periodic frequency modulation (SPFM) method based on the interleaving technique for paralleled three-phase voltage source inverters (VSIs) to eliminate PWM vibration noise. The proposed SPFM technique is able to effectively remove unpleasant high-frequency vibration noise as well as acoustic noise more effectively than the conventional periodic carrier frequency modulation (PCFM) and interleaving technique. It completely eliminates the vibration noise near odd-order carrier frequencies and reduces the PWM vibration noise near even-order carrier frequencies depending on the switching frequency variation range. Furthermore, the SPFM method is simple to implement and does not employ additional circuits in the drive system. Finally, the effectiveness of the proposed method has been confirmed by detailed experimental results.

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Cite this article

[IEEE Style]

W. Zhang, Y. Xu, J. Ren, J. Su, J. Zou, "Synchronous Periodic Frequency Modulation Based on Interleaving Technique to Reduce PWM Vibration Noise," Journal of Power Electronics, vol. 19, no. 6, pp. 1515-1526, 2019. DOI: 10.6113/JPE.2019.19.6.1515.

[ACM Style]

Wentao Zhang, Yongxiang Xu, Jingwei Ren, Jianyong Su, and Jibin Zou. 2019. Synchronous Periodic Frequency Modulation Based on Interleaving Technique to Reduce PWM Vibration Noise. Journal of Power Electronics, 19, 6, (2019), 1515-1526. DOI: 10.6113/JPE.2019.19.6.1515.