A Study on the Design Process of Noise Reduction in Induction Motors

Kim, Dojin; Jung, Jaewoo; Hong, Jung-Pyo; Kim, Kwang‐Jin; Park, Chul-Jun

doi:10.1109/tmag.2012.2197187

Cited by 44 publications

(17 citation statements)

References 5 publications

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“…The mathematical developments show that the method requires the use of 3 carriers in order to satisfy the expressions (9) or (11). Moreover, it is easy to observe that this control strategy does not modify the STPHSs initial amplitudes and that, in this case, all the modified STPHSs are balanced (this is not systematically the case when an harmonic of the 1 k group is suppressed [14]).…”

Section: Experimental Measurementsmentioning

confidence: 99%

See 1 more Smart Citation

On the use of carrier phase jumps to reduce some PWM switching effects

Brudny¹,

Morganti²,

Lecointe³

et al. 2014

IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society

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This paper is based on a method recently developed by the authors to characterize analytically, without switching angle determination, the voltage harmonic three-phase systems generated by the switching of PWM inverters. On this basis, it is possible to define control strategies that modify the spectral content of the output signals. The presented developments are focused on the carrier phase jump which aims to act on two harmonics simultaneously by controlling the effects on the other spectral components. Keywords-PWM supply, switching harmonic control, AC variable-speed drivesI.x The modeling gives identical results concerning the phases and, consequently, the STPHS phase sequences, either for a sinusoidal carrier or a triangular one, Jean-François Brudny

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Section: Experimental Measurementsmentioning

confidence: 99%

“…There are many references [10,11,12,13] about the reduction of this noise, with appropriate PWM strategies. The originality of the presented developments is based on the suppression of a force component whose effects are particularly important if it excites a stator mechanical resonance which can intervene at frequencies of a few kHz.…”

Section: Introductionmentioning

confidence: 99%

On the use of carrier phase jumps to reduce some PWM switching effects

Brudny¹,

Morganti²,

Lecointe³

et al. 2014

IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society

View full text Add to dashboard Cite

show abstract

“…The acoustic noise heard by human ears or captured by the acoustic detection device is one of the key aspects to evaluate the performance of a motor control system [1]. There are mainly three different types of noise according to the different noise sources.…”

Section: Introductionmentioning

confidence: 99%

Acoustic Noise of Induction Motor With Low-Frequency Model Predictive Control

2020

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This paper studies the acoustic noise of induction motor with low switching frequency model predictive control and compares its noise performance with the traditional pulse width modulation with proportional-integral controllers. First, the relationship among the air-gap magnetic field, the electromagnetic force, and the acoustic noise is modeled to describe the influence of control algorithm on the noise characteristics of motors. As the counterpart with the traditional pulse width modulation control, a finite control set model predictive control strategy with low switching frequency is proposed. The steady-state performance and switching frequency constraint ability of the proposed model predictive control strategy are verified on the experimental platform. Second, the noise spectrums of these two control strategies are sampled and compared in different operating conditions, and the influence of the weighting factor on the noise spectrum is also discussed. It is proved by the experimental results that model predictive control has better noise performance than the traditional sinusoidal pulse width modulation under the same switching frequency and the total harmonic distortion of stator current.

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“…The problem about vibrations and noises of motors is complex. Its research involves multiple disciplines such as electromechanics, electromagnetics, motor drive and control, mechanical vibration science, acoustics and mechanics [3][4][5][6]. The purpose of acoustic design is mainly shown as follows: in order to effectively reduce vibrations and noises, it is necessary to take full account of requirements regarding motor vibrations and noises at the earliest stages of the structural design of a motor.…”

Section: Introductionmentioning

confidence: 99%

Research on vibro-acoustic characteristics of the aluminum motor shell based on GA-BP neural network and boundary element method

Hu¹,

Gong²,

Shi³

et al. 2017

J. vibroeng.

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Firstly, the paper established a finite element model for a steel motor shell and computed related modals, vibration velocities, stress and strain respectively. Computational results show that the flange and end shield of the motor shell had the maximum vibration velocities and strain because these locations lacked the reinforcing ribs, while the maximum stress was mainly at joints between different structures. Secondly, the steel material was replaced by the aluminum alloy. Mechanical parameters of the motor shell were recomputed and compared with those of the steel structure. Results show that modal frequency on each order increased, which is good for avoiding the structural resonance. In addition, the maximum stress of the structure decreased by 4.4 MPa, and the maximum strain decreased by 0.27 mm, which could effectively improve the fatigue characteristics of the motor shell under long-term excitation. Then, the boundary element method was used to compute radiation noises of the motor shell in far field, where the radiation noise presented an obvious directivity. Finally, the paper proposed a GA-BP neural network model to predict the radiation noise of the motor and compared the prediction results with the boundary element. In the whole analyzed frequency band, the maximum difference between the neural network prediction and the real values did not exceed 5 dB, indicating that it is feasible to predict radiation noises of the motor by the neural network. Additionally, experiments were also conducted and compared with two kinds of numerical methods. Methods proposed in this paper provide some references for realizing the rapid noise reduction and light weight of motors.

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A Study on the Design Process of Noise Reduction in Induction Motors

Cited by 44 publications

References 5 publications

On the use of carrier phase jumps to reduce some PWM switching effects

On the use of carrier phase jumps to reduce some PWM switching effects

Acoustic Noise of Induction Motor With Low-Frequency Model Predictive Control

Research on vibro-acoustic characteristics of the aluminum motor shell based on GA-BP neural network and boundary element method

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