Effect of uneven magnetization on magnetic noise and vibrations in PMSM – application to EV HEV electric motor NVH

Devillers, Emile; Gning, Paul; Besnerais, Jean Le

doi:10.1109/icem49940.2020.9270988

Cited by 13 publications

(9 citation statements)

References 6 publications

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“…However, idealizing the motor model does not make such a model significantly different from the real one, which was made with due care and attention to the concentricity and symmetry of the motor poles. Electromagnetic forces occurring in a permanent magnet motor are Maxwell forces acting on the stator and rotor structure and are concentrated at the iron-air interface [9]. The distribution of Maxwell forces in the motor's electromagnetic circuit is called Maxwell stress [7].…”

Section: Theoretical Analysis Of Maxwell's Forces and Stresses In An ...mentioning

confidence: 99%

“…The stresses can be decomposed into elementary harmonic waves with a frequency f of the force and a wave number ± r describing the spatial frequency of the stress wave. The value of r describes the number of maxima or minima of the stress wave along the air gap [9]. Stress waves with a wave number r = 0 are so-called breathing (pulsating) waves directed mainly to the stretching of the stator package [4,9].…”

Section: Theoretical Analysis Of Maxwell's Forces and Stresses In An ...mentioning

confidence: 99%

“…The value of r describes the number of maxima or minima of the stress wave along the air gap [9]. Stress waves with a wave number r = 0 are so-called breathing (pulsating) waves directed mainly to the stretching of the stator package [4,9]. Stress waves with a wave number r = 0 are rotating waves, and their sign determines the direction of rotation of the stress waves.…”

Section: Theoretical Analysis Of Maxwell's Forces and Stresses In An ...mentioning

confidence: 99%

“…Stress waves with a wave number r = 0 are rotating waves, and their sign determines the direction of rotation of the stress waves. The frequency of the breathing wave is proportional to the smallest common multiple between the number of slots and the number of poles and is given by Equation (1) [9,29].…”

Section: Theoretical Analysis Of Maxwell's Forces and Stresses In An ...mentioning

confidence: 99%

“…Noise sources classified as magnetic are the most common causes of traction motor noise [9]. Some of the most common motors used in electric or hybrid drives are permanent magnet synchronous motors [7,10] and their subgroups SM-PMSM (with magnets mounted on the rotor surface) [11][12][13][14][15][16] and IPMSM (with magnets located inside the rotor) [16][17][18][19][20][21][22][23].…”

mentioning

confidence: 99%

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Identification and Analysis of Noise Sources of Permanent Magnet Synchronous Traction Motor with Interior Permanent Magnet

Król,

Maciążek

2023

Energies

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The rapid development of electromobility is placing ever higher demands on new electric motor designs. This results in a gradual reduction in weight with a simultaneous increase in maximum torque. As a result, unfavorable phenomena, such as vibration and noise, can become apparent in the drivetrain. Modeling and evaluation of the acoustic noise sources of a traction motor are particularly important when it is used, for example, as the traction drive of an electric bus, where too high noise levels can have a negative impact on passengers. This article describes methods for analyzing and evaluating the root causes of noise that occurs in permanent magnet traction motors with a rotor in which the magnets have been placed inside the rotor (PMSM IPM). This paper presents an analysis of acoustic noise and forces acting in the air gap of a 240 kW motor with 60 stator slots and 2p = 10 (s60p20) as the number of pole pairs designed for bus and truck drives. To determine the dominant noise sources and evaluate their value, the forces acting in the air gap and their effect on the deflection of the outer surface of the stator yoke were calculated. The natural frequencies of the machine, their frequencies for the entire rotor speed range, and the frequency of vibration of the motor stator were calculated. Based on these data, the sound power level (A-SWL) was calculated at varying motor speeds. MANATEE software (EOMYS, 9, avenue de la Créativité, 59650 Villeneuve d’Ascq—FRANCE) from EOMYS was used to perform vibroacoustic calculations. The analysis results were also subjected to verification on a laboratory bench.

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Section: Theoretical Analysis Of Maxwell's Forces and Stresses In An ...mentioning

confidence: 99%

Section: Theoretical Analysis Of Maxwell's Forces and Stresses In An ...mentioning

confidence: 99%

Section: Theoretical Analysis Of Maxwell's Forces and Stresses In An ...mentioning

confidence: 99%

Section: Theoretical Analysis Of Maxwell's Forces and Stresses In An ...mentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

Identification and Analysis of Noise Sources of Permanent Magnet Synchronous Traction Motor with Interior Permanent Magnet

Król,

Maciążek

2023

Energies

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show abstract

A review study on the improvement of stator frame design and prediction of electromagnetic vibration of hydro generators

Thakur¹,

Goga²,

Shrivastava³

2023

Materials Today: Proceedings

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Influence of Silicon Steel Materials on Performance of PMSM with V-Shape PMs

Guan

Wang

et al. 2021

2021 IEEE 4th International Electrical and Energy Conference (CIEEC)

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Effect of uneven magnetization on magnetic noise and vibrations in PMSM – application to EV HEV electric motor NVH

Cited by 13 publications

References 6 publications

Identification and Analysis of Noise Sources of Permanent Magnet Synchronous Traction Motor with Interior Permanent Magnet

Identification and Analysis of Noise Sources of Permanent Magnet Synchronous Traction Motor with Interior Permanent Magnet

A review study on the improvement of stator frame design and prediction of electromagnetic vibration of hydro generators

Influence of Silicon Steel Materials on Performance of PMSM with V-Shape PMs

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