Analytical modelling of electromagnetic origin vibrations in an induction machine supplied by high power PWM inverter

Leleu, Emmanuel; Espanet, Christophe; Miraoui, Abdellatif; Siala, S.

doi:10.1109/iecon.2006.347731

Cited by 7 publications

(4 citation statements)

References 3 publications

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“…In the 1990-2000s, researched methods focused on actively reducing the magnetic vibration occurring in the SCIM stator. These methods are based on adding a compensation harmonic to the supply voltage [4,[21][22][23]. Completely different approaches were offered by the methods proposed in the works of the last decade [1,24,25].…”

Section: Introductionmentioning

confidence: 99%

Magnetic Vibration in Induction Motor Caused by Supply Voltage Distortion

et al. 2022

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This article discusses magnetic vibrations in squirrel-cage induction motor stators and provides a mathematical description of the process of their excitation. A model of a 30 kW squirrel-cage induction motor was developed in finite element software. This model considers the motor geometry, material properties and stator winding. The electromagnetic and mechanical processes in the motor during the rotation of the rotor were considered. In the course of this study, currents of various harmonic compositions and amplitudes were applied to the motor windings, which caused magnetic noise, vibration and pulsations of the electromagnetic torque. Magnetic noises, vibrations and pulsations of the electromagnetic torque were investigated in the case of imbalance and harmonic distortions of the supply voltage.

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Section: Introductionmentioning

confidence: 99%

Magnetic Vibration in Induction Motor Caused by Supply Voltage Distortion

et al. 2022

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“…Magnetic noise associated with the magnetostriction of the stator steel is a problem for almost all medium/high power motors [1][2][3][4][5][6]. It leads to many unfavorable phenomena: a change in the harmonic composition of the supply voltage, wear of bearings, acoustic noise, an increase in power consumption and destruction of electric motors [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

“…1 [5]. Radial magnetic forces of one harmonic composition cause the magnetic noise of another harmonic composition [1,[4][5][6]. This is due to the fact that the stator of the SCIM characterized by its own frequency response with one or several natural frequencies.…”

Section: Introductionmentioning

confidence: 99%

Active reduction of magnetic noise occurring in the stators of an induction motors

Ermolaev¹,

Erofeev²,

Plekhov³

et al. 2021

Vib. proced.

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The article describes a method for active reduction of magnetic noise generated by a magnetic field that exists in the airgap of an induction motor. In this article a mathematical model of the process of magnetic noise excitation in a stators is presented. The model take into account that magnetic field waves, radial magnetic force waves (so-called Maxwell forces) and stator deformation waves (magnetic noise) are characterized by their own values of amplitude, mode number, frequency and phase shift. By comparing the equations for calculating the stator mechanical impedance, the amplitude of the radial magnetic force and the simplified magnetic noise equation, the relationships between these variables were established. The method of active reduction of magnetic noise proposed in the article is based on the use of these relationships. The novelty of the proposed method lies in the use of the filtered spectrum of output signal of the accelerometer installed on the stator to determine the most intense harmonics of the magnetic field in the motor airgap in order to further suppress them. The compensation signal generated by a special device adapts not only in frequency, but also in phase and amplitude of each vibration-disturbing harmonic.

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“…To this aim it is important to have one or more signals that represent vibrations generated by the motor so to reduce them; it can be obtained for example by varying switching frequency or control algorithm or simply by avoiding critical values of speed and torque that generate resonance phenomena. In the literature [2][3][4][5][6], the analysis of vibrations related only to the behaviour of the electrical machines is often performed. A more general approach to vibrations is adopted in this paper, consisting in the analysis of the vibrations induced in the supporting cradle on the basis of the torque produced by a induction motor drive controlled by Field Oriented Control (FOC) algorithm.…”

Section: Introductionmentioning

confidence: 99%

PVDF based vibration measurements and their correlation with torque estimation in a FOC induction motor drive

D'Acquisto¹,

Abbate²,

Pucci

et al. 2008

2008 IEEE International Symposium on Industrial Electronics

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This paper presents a study concerning the vibrations generated by an induction motor drive controlled by FieldOriented Control algorithm (FOC). The aim of the study is to identify suitable measurement points and analysis techniques in order to achieve information about vibration generated by an electric drive. Vibrations take origin both by the torque generated by the motor and the motor supply through an inverter, then they are transmitted to neighbouring structures. Torque is estimated on the basis of the estimated flux linkage; vibrations have been both measured and analysed numerically by FEM at two points of the cradle. The numerical and experimental analysis have been carried out for different values of speed and torque. Results have shown that there is an appreciable correlation between measured vibration signal and the harmonics of estimated torque. Therefore in prospective it can be used as a reference for a feedback action to lessen overall ripple effects.

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Analytical modelling of electromagnetic origin vibrations in an induction machine supplied by high power PWM inverter

Cited by 7 publications

References 3 publications

Magnetic Vibration in Induction Motor Caused by Supply Voltage Distortion

Magnetic Vibration in Induction Motor Caused by Supply Voltage Distortion

Active reduction of magnetic noise occurring in the stators of an induction motors

PVDF based vibration measurements and their correlation with torque estimation in a FOC induction motor drive

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