Estimation of Acoustic Noise and Vibration in an Induction Machine Considering Rotor Eccentricity

Kim, Dojin; Kim, Hae-Joong; Hong, Jung-Pyo; Park, Chul-Jun

doi:10.1109/tmag.2013.2285391

Cited by 56 publications

(28 citation statements)

References 4 publications

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“…Electromagnetic vibration and noise of motors is a multi-physics field problem, involving multiple fields including electromagnetism, dynamics, structure and acoustic field. Electromagnetic noises of motors are mainly studied by analytical method, finite element method and experimental test [4][5][6][7][8][9]. Islam [10] proposed a method, where coupling analysis between electromagnetic and vibration was conducted by finite element software, and then motor noises could be predicted according to response superposition theories.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation and optimization for electromagnetic noises of permanent magnet synchronous motors in vehicles

Bai¹

2018

J. vibroeng.

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In the paper, the numerical simulation is conducted on the motor electromagnetic force firstly. Radial force waves of the motor are the main reason for causing electromagnetic vibration and noise. Then, electromagnetic forces are mapped into a structural model for computing electromagnetic vibration. Computational results are compared with experimental results, so the correctness of the computational model is verified. Then, electromagnetic noises are computed according to the vibration data of the motor. Electromagnetic noises of the motor are axis-symmetric in plane and plane. In plane , the electromagnetic noise of the motor is skew-symmetric relative to a 45° angle. In plane and plane , the noise is caused by the vibration of the end cap, while noise in plane is caused by electromagnetic radial forces. In addition, the motor electromagnetic noise has an obvious directivity. The motor also has obvious

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Section: Introductionmentioning

confidence: 99%

Numerical simulation and optimization for electromagnetic noises of permanent magnet synchronous motors in vehicles

Bai¹

2018

J. vibroeng.

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“…Static eccentricity is caused by the incorrect positioning of the stator or of the rotor [9]. Dynamic eccentricity is produced when the center of the rotor is not in the center of rotation.…”

Section: Magnetic Sources Of Noisementioning

confidence: 99%

Determination of magnetic noise for a 7.5 kW three-phase induction motor fed directly from the grid

Nistor

Scutaru

Peter³

et al. 2014

2014 International Conference on Optimization of Electrical and Electronic Equipment (OPTIM)

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The aim of this paper is to analyze the magnetic noise produced by an three phase induction motor power of 7.5kW, 1000 rpm simple layer windings produced by the company Electroprecizia Sacele located in Brasov Romania.It was chosen this engine knowing that from 2015 it will be adopted the standard IEC 60034-30 IE3 category which provides noise limits for these induction motors. A second reason for choosing this type of motor 7.5kW -1000rpm is connected to the fact that its functioning in normal regime is very silent, the total noise produced has low values, the higher value of noise is given by the electromagnetic noise.In this paper we have considered the direct network feed because these are the only conditions in which this motor function. This category of induction motors are used most frequently, almost every time, without inverter.The simulation was performed considering supply voltage 400 V (nominal voltage) and fixed frequency 50Hz. Engine speed is fixed and induction motor is directly connected from the grid without inverter (at no load). For the simulation was used a finite element program Flux 2D , and experimental measurements were performed in a semi-anechoic chamber located in the research laboratory of the company which making the induction motor.

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“…In the literature, the impact of eccentricity on the induction machine performance is reported in [2], [4], [5], besides, the eccentric surface mounted permanent magnet (SPM) machines are studied in [6]- [10]. However, the literature is showing that the magnetic performance of the eccentric reluctance (REL) and permanent magnet assisted reluctance (PMAREL) synchronous machines are only marginally investigated in [11]- [13].…”

Section: Introductionmentioning

confidence: 99%

Eccentric Reluctance and Permanent Magnet Synchronous Machines Comparison

Mahmoud

Al-Ani

Gerada

2018

IEEE Trans. on Ind. Applicat.

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Abstract-This paper deals with a comparative study between reluctance (REL), permanent magnet assisted reluctance (PMAREL), and surface mounted permanent magnet synchronous machines with rotor eccentricity. Static, dynamic, and combined eccentricity cases are considered. For the sake of generality, this comparison is carried out at different levels of airgap flux density, as different current angles, different permanent magnet (PM) materials, and different number of magnetic poles. Additionally, different stator windings arrangements, i.e, distributed and fractional slot concentrated windings are taken into account. Besides, different rotor geometries of REL and PMAREL machines are included. As a case of study, 36-slot machine is analyzed, considering three flux barriers per pole, however, the study can be applied to any machine geometry.Due to the structural criticality of the rotor iron ribs of the REL machines, the impact of the eccentricity on the mechanical stress acting on those ribs and the deformation of the rotor is studied.

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Estimation of Acoustic Noise and Vibration in an Induction Machine Considering Rotor Eccentricity

Cited by 56 publications

References 4 publications

Numerical simulation and optimization for electromagnetic noises of permanent magnet synchronous motors in vehicles

Numerical simulation and optimization for electromagnetic noises of permanent magnet synchronous motors in vehicles

Determination of magnetic noise for a 7.5 kW three-phase induction motor fed directly from the grid

Eccentric Reluctance and Permanent Magnet Synchronous Machines Comparison

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