A New Passive Methodology for Reducing the Noise in Electrical Machines: Impact of Some Parameters on the Modal Analysis

Torregrossa, Dimitri; Peyraut, François; Cirrincione, Maurizio; Espanet, Christophe; Cassat, A.; Miraoui, Abdellatif

doi:10.1109/tia.2010.2057491

Cited by 38 publications

(19 citation statements)

References 9 publications

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“…Therefore, the relationship between the harmonic voltage and current should be established to reduce the tangential force ripple through harmonic current [9][10][11][12][13].…”

Section: Analytical Model Of Harmonic Injectionmentioning

confidence: 99%

A Study on the Reduction of Noise in Rounded Square PMDC Motors Using the Harmonic Injection Method

Wang

2015

Acoust Aust

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Present studies on the reduction of motor noise using the harmonic injection method focus on motors without mechanical brushes and commutators. Using the voltage harmonic injection method, this study proposes to reduce the noise in Rounded Square PMDC motors with mechanical brushes and commutators. The specific order and frequency of electromagnetic harmonic forces can be eliminated without losing motor performance. 2D finite element analysis and experimental testing were conducted to analyze the root cause of motor noise. Major excitation force harmonics of the motor noise were found. Theoretical and simulation models of voltage injection harmonics were built. The appropriate voltage injection harmonic was determined. The motor performance and noise was studied with and without voltage harmonic injection. It was verified that the voltage harmonic injection method was useful for noise reduction in rounded square PMDC motors. Most importantly, its performance was maintained.

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“…Therefore, the relationship between the harmonic voltage and current should be established to reduce the tangential force ripple through harmonic current [9][10][11][12][13].…”

Section: Analytical Model Of Harmonic Injectionmentioning

confidence: 99%

A Study on the Reduction of Noise in Rounded Square PMDC Motors Using the Harmonic Injection Method

Wang

2015

Acoust Aust

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“…Effectiveness of skew on reducing cogging torque is verified [3 ] and acoustic noise can be improved outstandingly [4]. The skew angle should be determined through the , where N period is number of cogging period, S is number of slot.…”

Section: Introductionmentioning

confidence: 97%

Decisive influence on torque ripples of permanent Magnet assisted Synchronous Motor by the carrier harmonics

Jeong

Kim

Jung

2012

2012 IEEE Vehicle Power and Propulsion Conference

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In this paper, decisive influences of the carrier harmonics on torque characteristic for Permanent Magnet II. MODELING assisted Synchronous Reluctance Motor (PMa-SynRM), which A. PMa-SynRM has been purposely designed for EV drive system, is numerically investigated. In the design process of PMa-SynRM, stator skew and short pitch winding are adopted in order to reduce torque tq-axis ripple causing the acoustic noise, vibration. First of all, not only the specification of the PMa-SynRM, but the reduction design process and the performance characteristics such as torque production and ripples are presented. Subsequently, the remarkable torque analysis result, that is obtained using 3-D modeling considering skewed stator structure and the carrier harmonics, is covered in priority. Meanwhile, numerical analysis of its performance is carried out with the Finite Element Method (FEM).'1-I.

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“…Owing to its high torque density and high efficiency, the PMSM has been used as promising candidate for many industrial applications [4].…”

Section: Introductionmentioning

confidence: 99%

Interior noise and vibration prediction of permanent magnet synchronous motor

Qian¹,

Wang²,

Gao³

et al. 2018

J. vibroeng.

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Abstract. Electric vehicles (EV) are considerably quieter than internal combustion engine (ICE) powered vehicles, because noise of ICE is eliminated. However, the interior noise of an EV usually contains significant high-frequency noise components caused by electrical motor, which can be subjectively perceived as annoying and unpleasant. This paper describes a numerical model to predict interior acoustic noise caused by electromagnetic forces in permanent magnet synchronous motor (PMSM) for electric vehicles. Firstly, the principle of the multiphysics method is to establish a complete 3Dstructural finite element model (FEM) of motor. Based on FEM, natural frequency and modal shape were calculated by modal analysis. Secondly, using an electromagnetic finite element solver, the excitation due to electromagnetic phenomena is obtained. This excitation is then projected onto the structure mesh of motor in order to calculate the dynamic response. Thirdly, radiated electromagnetic vibration acceleration on the surface of the motor is calculated with modal superposition method. Compared with experimental test results, the creditability of motor electromagnetic vibration simulation is proved. Finally, by combining with transfer path analysis (TPA) techniques, interior electromagnetic noise of electric vehicles is accurately predicted. According to contribution analysis, motor surface zones and transfer paths contributing largely to the interior motor electromagnetic noise are identified. The results play a significant guiding role in both electric vehicle and permanent magnet synchronous motor for noise control and analysis.Keywords: electric vehicle, permanent magnet synchronous motor (PMSM), finite element analysis (FEA), transfer path analysis, noise and vibration.

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A New Passive Methodology for Reducing the Noise in Electrical Machines: Impact of Some Parameters on the Modal Analysis

Cited by 38 publications

References 9 publications

A Study on the Reduction of Noise in Rounded Square PMDC Motors Using the Harmonic Injection Method

A Study on the Reduction of Noise in Rounded Square PMDC Motors Using the Harmonic Injection Method

Decisive influence on torque ripples of permanent Magnet assisted Synchronous Motor by the carrier harmonics

Interior noise and vibration prediction of permanent magnet synchronous motor

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