Hybrid RPWM Technique Based on Modified SVPWM to Reduce the PWM Acoustic Noise

Huang, Yingliang; Xu, Yongxiang; Zhang, Wentao; Zou, Jibin

doi:10.1109/tpel.2018.2869980

Cited by 69 publications

(24 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The associate editor coordinating the review of this manuscript and approving it for publication was Firuz Zare. eliminated in traditional RPWM [12], [9], such as the specific frequencies which are harmful to the motor [13]. Low-order harmonics can be eliminated by calculating the switching angle with the selective harmonic elimination pulse width modulation (SHEPWM) strategy, such as the harmonic of 5th, 7th, etc.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic Vibration and Noise Suppression of Induction Motor Based on RPWM Selective Spectrum Shaping

Wang

2021

IEEE Access

View full text Add to dashboard Cite

In AC motor powered by frequency converter, the random pulse width modulation (RPWM) can suppress vibration and noise power near the switching frequency and its integer multiple of the inverter. However, the traditional RPWM strategy cannot selectively eliminate the special frequency harmonics, such as the frequency that causes strong electromagnetic vibration and noise of the motor. A method of suppressing electromagnetic vibration and noise of induction motor based on RPWM selective spectrum shaping is proposed. Firstly, according to three different pulse positions, the general formula of selective harmonic elimination of RPWM is derived, so as to selectively eliminate the harmonic noise power at a specific frequency and its integer multiple. On this basis, further spectrum shaping can be realized by reasonably selecting the effective random number to avoid the inverter switching frequency distributing in a specific frequency band. The simulation and experimental results show that the method can not only suppress the vibration and noise near the integer times of the switching frequency, but also selectively suppress the electromagnetic vibration and noise at other frequencies.INDEX TERMS RPWM, selective harmonic elimination, invert, induction motor.

show abstract

Section: Introductionmentioning

confidence: 99%

Electromagnetic Vibration and Noise Suppression of Induction Motor Based on RPWM Selective Spectrum Shaping

Wang

2021

IEEE Access

View full text Add to dashboard Cite

show abstract

“…The methods for reducing the CMV focus on hardware and software: the hardware methods are mainly to add a filter or an inverter leg, and the software methods are mainly to adopt improved modulation strategy [9][10][11][12]. The software methods do not increase the cost from hardware, and can reduce the burden of the filter.…”

Section: Introductionmentioning

confidence: 99%

Common-Mode Reduction SVPWM for Three-Phase Motor Fed by Two-Level Voltage Source Inverter

Zheng

Lyu

et al. 2020

Energies

View full text Add to dashboard Cite

Aiming at the problem of large magnitude and high frequency of common-mode voltage (CMV) when space vector pulse width modulation (SVPWM) is used in a three-phase motor fed by a two-level voltage source inverter, a common-mode reduction SVPWM (CMRSVPWM) is studied. In this method, six new sectors are obtained by rotating six sectors of conventional SVPWM by 30°. In odd-numbered sectors, only three non-zero vectors with odd subscripts are used for synthesis, while in even-numbered sectors, only three non-zero vectors with even subscripts are used for synthesis. The actuation durations of three non-zero vectors in each switching period in each sector are given. Simulation and experimental results show that, compared with the conventional SVPWM, the CMV magnitude of CMRSVPWM is reduced by 66.67% and the CMV frequency of CMRSVPWM is reduced from the original switching frequency to the triple fundamental frequency. At the same time, the current, torque and speed of the motor are still good.

show abstract

“…Apart from the above conventional RPWM methods, recent researches present other strategies to deal with highfrequency vibration and noise. In [18]- [20], the SVPWM with modified switching sequence is used to reduce the noise in the range of human hearing, but the high-frequency harmonics cannot be eliminated. In application of twosegment three-phase PMSM, the interleaved technique with magnetically coupled inductors [21] and phase shift PWM technology [22], [23], are proposed, but two inverters are necessary.…”

Section: Introductionmentioning

confidence: 99%

Random Asymmetric Carrier PWM Method for PMSM Vibration Reduction

Hongqiang

2020

IEEE Access

View full text Add to dashboard Cite

The underwater noise can be caused by the radial electromagnetic vibration of permanent magnet synchronous motor (PMSM) for electric propulsion. The difficulty in decreasing the underwater noise is not only the high-frequency but also low-frequency vibration reduction. This paper proposes a novel random asymmetric carrier pulse width modulation (RACPWM) method for PMSM vibration reduction in the whole frequency range. Instead of the conventional symmetric triangular carrier PWM, the asymmetric carrier PWM (ACPWM) is used to decrease the low-frequency phase current harmonics and the associated low-frequency vibration. Meanwhile, in order to suppress the high-frequency vibration, the RACPWM control based on the amplitude randomization of the sawtooth carrier is further presented to reduce the high-frequency phase current harmonics. Moreover, the RACPWM is equivalent to the random slope ACPWM in view of the output signals. Furthermore, without the need of any additional circuits in the drive, the presented method is simple to implement by software. Simulation and experimental results show that the proposed RACPWM method can effectively reduce both the low-frequency and the high-frequency vibration. INDEX TERMS Permanent magnet synchronous motor (PMSM), asymmetric carrier, sawtooth carrier, vibration reduction, underwater noise, current harmonics.

show abstract

Hybrid RPWM Technique Based on Modified SVPWM to Reduce the PWM Acoustic Noise

Cited by 69 publications

References 21 publications

Electromagnetic Vibration and Noise Suppression of Induction Motor Based on RPWM Selective Spectrum Shaping

Electromagnetic Vibration and Noise Suppression of Induction Motor Based on RPWM Selective Spectrum Shaping

Common-Mode Reduction SVPWM for Three-Phase Motor Fed by Two-Level Voltage Source Inverter

Random Asymmetric Carrier PWM Method for PMSM Vibration Reduction

Contact Info

Product

Resources

About