Study on magnetic noise caused by harmonics in output voltages of PWM inverter

Iida, Shoji; Ohkuma, Y.; Masukawa, Shigeo; Miyairi, Shota; Bose, B.K.

doi:10.1109/iecon.1990.149300

Cited by 8 publications

(4 citation statements)

References 3 publications

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“…Both harmonic-eliminated and optimal PWMs with minimal harmonic content often result in reduced losses as well as a lower acoustic noise level [3]. However, as mentioned above, it is important to consider the -weighted sound pressure level both for the switching harmonics and the natural frequencies.…”

Section: Introductionmentioning

confidence: 99%

“…Since the total harmonic distortion is then increased, the emitted acoustic noise level can become unacceptable. However, although the effect of nonsinusoidal supplies on the acoustic noise has been addressed extensively [3]- [9], and various PWM strategies, such as natural sampling, asymmetrical regular sampling, harmonic elimination, optimal, space vector, and random PWM, have been developed primarily to reduce harmonic distortion and improve efficiency, their effect on noise emissions has been largely restricted to a consideration of the 0278-0046/00$10.00 © 2000 IEEE switching noise of the drive, with relatively little consideration of their interaction with the machines.…”

Section: Introductionmentioning

confidence: 99%

“…In order to compare the relative merits of different PWM strategies, an equivalent -weighted total harmonic distortion (THD) is introduced for noise estimation [3], viz., or where , , and , are the fundamental and harmonic components of the output voltage and current, and is the -weighted curve accounting for the nonlinear response of the human ear to the sound pressure level. For conventional , which is appropriate only in relation to a consideration of system losses, and is not appropriate when estimating the magnetic noise caused by harmonic components.…”

Section: Introductionmentioning

confidence: 99%

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Acoustic noise radiated by PWM-controllel induction machine drives

Chan

Zhu

et al. 2000

IEEE Trans. Ind. Electron.

143

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Abstract-This paper investigates the acoustic noise radiated from two nominally identical induction motors when fed from sinusoidal, and asymmetric regular sampling subharmonic and space-vector pulsewidth modulation (PWM) converters. The theory for analyzing the noise spectrum is developed further to account for the interaction between the motor and the drive. It is shown that manufacturing tolerances can result in significant differences in the noise level emitted from nominally identical motors, and that mechanical resonances can result in extremely high noise emissions. Such resonances can be induced by stator and rotor slot air-gap field harmonics due to the fundamental component of current, and by the interaction between the airgap field harmonics produced by the fundamental and the PWM harmonic currents. The significance of the effect of PWM strategy on the noise is closely related to the mechanical resonance with vibration mode order zero, while the PWM strategy will be critical only if the dominant cause of the emitted noise is the interaction of the fundamental air-gap field and PWM harmonics.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Acoustic noise radiated by PWM-controllel induction machine drives

Chan

Zhu

et al. 2000

IEEE Trans. Ind. Electron.

143

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“…However, the fixed switching frequency causes acoustical noise from the AC-machine due to mechanical effect in rotor and stator. Some efforts have been done in clarifying this phenomenon [5] [6].…”

Section: Introductionmentioning

confidence: 99%

Acoustic noise reduction in VSI-DFIM for electrical naval propulsion

Debbou

Pietrzak‐David

2015

IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society

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In this paper, the authors treat one of the major problems noted in the association of electrical motors fed by the inverters, it is well known as the acoustic and vibratory noise. An electrical propulsion system mainly based on a Doubly Fed Induction Machine (DFIM), operating in motor mode and supplied by two Voltage Source Inverters (VSIs) is introduced. The modeling of the marine propeller is reported and the equations defining its behavior are established. A Stator Flux Oriented Control (SFOC) associated to different modulators (PWM) is chosen to control the system. These control methods are applied considering taking into considerations a real naval propulsion operating cycle. In order to choose the optimal law in term of acoustic noise, these laws are evaluated during a cruise cycle.

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Digital quasi-random modulated SFAVM PWM in an AC-drive system

Pedersen

Blaabjerg

1994

IEEE Trans. Ind. Electron.

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Study on magnetic noise caused by harmonics in output voltages of PWM inverter

Cited by 8 publications

References 3 publications

Acoustic noise radiated by PWM-controllel induction machine drives

Acoustic noise radiated by PWM-controllel induction machine drives

Acoustic noise reduction in VSI-DFIM for electrical naval propulsion

Digital quasi-random modulated SFAVM PWM in an AC-drive system

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