A Review on Conductive Common-Mode EMI Suppression Methods in Inverter Fed Motor Drives

Zhang, Zeliang; Hu, Yihua; Chen, Xiao; Jewell, G.W.; Li, Hong

doi:10.1109/access.2021.3054514

Cited by 47 publications

(20 citation statements)

References 101 publications

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“…These undesirable emissions can be in either differential mode (DM) or common mode (CM). Although EMI been extensively studied [11][12][13][14][15] , the impact of stator winding faults on EMI noise emissions has not been investigated in detail. Stator winding faults have been reported to affect the CM noise emission, but no further studies have been conducted on the conversion of CM-to-DM noise emission [16] .…”

Section: Introductionmentioning

confidence: 99%

Impact of Motor Stator Winding Faults on Motor Differential-mode Impedance and Mode Transformation

Fan

Jie

Sun

et al. 2022

Chin. J. Electr. Eng.

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Motor impedance and mode transformation have significant effects on the electromagnetic interference (EMI) generated in motor drive systems. Stator winding faults commonly cause motor failure; however, in their early stages, they may not affect the short-term operation of the motor. To date, EMI noise under the influence of premature stator winding faults has not been adequately studied, particularly the differential-mode (DM) noise due to the common-mode (CM)-to-DM transformation. This study investigates and quantifies the influence of stator winding faults on the motor DM impedance and mode transformation. First, the transmission line model of an induction motor is described based on the scattering (S) parameter measurements of each phase of the motor. It offers the flexibility to emulate different types of stator winding faults at specific locations and various severities, such that the impacts of the faults on the motor DM impedance can be easily estimated. Second, a test setup is proposed to quantify the CM-to-DM transformation due to the stator winding faults. The findings of this study reveal that even the early stages of stator winding faults can result in significant changes in the DM noise.

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Section: Introductionmentioning

confidence: 99%

Impact of Motor Stator Winding Faults on Motor Differential-mode Impedance and Mode Transformation

Fan

Jie

Sun

et al. 2022

Chin. J. Electr. Eng.

View full text Add to dashboard Cite

show abstract

“…The overvoltage can result in accelerated aging or even failure of the motor winding insulation [3] . Moreover, the fast switching of semiconductors in the drive leads to conducted emissions [4][5] , such as the flow of the common-mode (CM) and differential-mode (DM) currents between the drive and motor [6][7] . These conducted emissions may disturb nearby sensitive equipment by various means, such as crosstalk [8] and common-ground interference [9] .…”

Section: Introductionmentioning

confidence: 99%

Physics Informed Neural Network-based High-frequency Modeling of Induction Motors

Fan

Sun

Jie

et al. 2022

Chin. J. Electr. Eng.

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The high-frequency (HF) modeling of induction motors plays a key role in predicting the motor terminal overvoltage and conducted emissions in a motor drive system. In this study, a physics informed neural network-based HF modeling method, which has the merits of high accuracy, good versatility, and simple parameterization, is proposed. The proposed model of the induction motor consists of a three-phase equivalent circuit with eighteen circuit elements per phase to ensure model accuracy. The per phase circuit structure is symmetric concerning its phase-start and phase-end points. This symmetry enables the proposed model to be applicable for both star-and delta-connected induction motors without having to recalculate the circuit element values when changing the motor connection from star to delta and vice versa. Motor physics knowledge, namely per-phase impedances, are used in the artificial neural network to obtain the values of the circuit elements. The parameterization can be easily implemented within a few minutes using a common personal computer (PC). Case studies verify the effectiveness of the proposed HF modeling method.

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“…Electromagnetic compatibility (EMC) has become one of the important indicators for evaluating the performance of EVs. Conducted EMI suppression is a key technology for EMC of motor drive systems [5,6].…”

Section: Introductionmentioning

confidence: 99%

Design method of wide‐band high‐current air‐core inductor EMI filter for high voltage DC power of motor inverter of electric vehicle

Zhai

Yang

Hu³

et al. 2022

IET Power Electronics

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Passive filters are often used for electromagnetic interference (EMI) suppression of high voltage (HV) DC power supplies of electric vehicle (EV) motor controllers. The high current of the DC bus saturates the differential mode (DM) magnetic ring, while the leakage inductance of common mode (CM) inductor used as the DM inductance is usually very small, resulting in almost no suppression of DM EMI. A design method of broadband high‐current air‐core inductor passive filter is proposed. By using the air‐core inductor as DM inductor, the problem of easy saturation of the DM inductor core and the small leakage inductance of the CM inductor is solved, and improves the low frequency DM EMI suppression. Through the calculation and selection of the turning frequency point of the multi‐stage filter circuit, the effective frequency band can be improved. By analysing the influence of parasitic parameters, the problem of insufficient insertion loss of the filter at high frequency is solved. The experimental verification shows that the proposed air‐core inductor filter achieves 50 dB of CM and DM insertion loss in frequency range of 150 kHz–108 MHz, and meets the requirements of system conducted disturbance voltage specified in CISPR25‐2016Rd level 3.

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A Review on Conductive Common-Mode EMI Suppression Methods in Inverter Fed Motor Drives

Cited by 47 publications

References 101 publications

Impact of Motor Stator Winding Faults on Motor Differential-mode Impedance and Mode Transformation

Impact of Motor Stator Winding Faults on Motor Differential-mode Impedance and Mode Transformation

Physics Informed Neural Network-based High-frequency Modeling of Induction Motors

Design method of wide‐band high‐current air‐core inductor EMI filter for high voltage DC power of motor inverter of electric vehicle

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