Generation and Propagation of Common-Mode Currents in a Balanced Two-Conductor Line

Sugiura, Akira; Kami, Yoshio

doi:10.1109/temc.2011.2162523

Cited by 46 publications

(17 citation statements)

References 12 publications

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“…Possible underestimation of the DM noise is due to the fact that in the proposed simplified model the DM is not directly excited by the EM field, but it is only to be ascribed to CM-to-DM conversion due to imbalance affecting the terminal networks, [15], [16]. However, in the high frequency range the contribution due to pure DM excitation becomes no longer negligible [9], thus possibly leading to noise levels higher than those predicted by simulation.…”

Section: Prediction Of Interference Levelsmentioning

confidence: 90%

Combined MTL-Fullwave Statistical Approach for Fast Estimation of Radiated Immunity of Spacecraft Cable Assemblies Involving Multipair Bundles

Grassi

Spadacini

Pignari

et al. 2015

IEICE Trans. Commun.

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The usage of this PDF file must comply with the IEICE Provisions on Copyright. The author(s) can distribute this PDF file for research and educational (nonprofit) purposes only. Distribution by anyone other than the author(s) is prohibited.SUMMARY In this work, a computationally-efficient modeling approach is developed to predict the electromagnetic noise induced in the terminal units of random bundles of twisted-wire pairs mounted onboard spacecraft. The proposed model combines the results of a preliminary fullwave simulation, aimed at evaluating the electromagnetic field inside the space vehicle's metallic body, with a stochastic model of a random bundle, based on multiconductor transmission line (MTL) theory. Model assessment versus measurement data obtained characterizing real wiring harness in a full-scale satellite mock-up demonstrates the large sensitivity (up to 40 decibels) of the induced noise levels to different bundle configurations, and corroborates the effectiveness of the proposed simplified modeling strategy for estimating the modal noise voltages induced in the terminal units.

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Section: Prediction Of Interference Levelsmentioning

confidence: 90%

Combined MTL-Fullwave Statistical Approach for Fast Estimation of Radiated Immunity of Spacecraft Cable Assemblies Involving Multipair Bundles

Grassi

Spadacini

Pignari

et al. 2015

IEICE Trans. Commun.

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“…Sugiura and Kami [40] show that common mode noise flowing into two branches can add up and flow into a third branch. Therefore, three antinoise signals corresponding to every line voltage have been fed into respective phases.…”

Section: )mentioning

confidence: 99%

Wavelet Transform-Based <sc>EMI</sc> Noise Mitigation in Power Converter Topologies

Alam

Mukul

Thakura

2016

IEEE Trans. Electromagn. Compat.

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This paper proposes a novel wavelet transform-based approach for electromagnetic interference (EMI) noise mitigation in power electronics topologies. The switching action of power semiconductor devices generates EMI in power converter modules which exceeds the noise limit set by the regulation of CISPR11. In order to cancel the EMI noise, the wavelet transform-based timefrequency localization approach has been used for generating a noise cancellation signal. The effectiveness of the proposed method has been evaluated in the terms of signal-to-noise ratio (SNR). Further, the effect of variance of the noise amplitude has been taken into consideration on the SNR. A relationship between the standard deviation, which is proportional to square root of the variance of the signal, and the SNR has been established. The proposed method has been implemented on the different power electronics topologies such as buck converter, boost converter, three-phase voltage source inverter, and Z-source inverter-based ac drive. The proposed method achieves the reduction of noise level below the safe limit set by CISPR11.Index Terms-Boost converter, buck converter, EMI, morlet wavelet, signal-to-noise ratio, three-phase voltage source inverter, wavelet transform, Z-source inverter.

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“…Since the adapter is well-balanced, it can be assumed that conversion between the differential-and common-modes barely occurs in the adapter [4]. Therefore, although the two modes are usually treated simultaneously using the mix-mode S-parameters [5], the present paper deals with these modes independently.…”

Section: Ac-coaxial Adaptermentioning

confidence: 99%

“…The other power line is connected to a 50-Ω load instead of the receiver. Accordingly, the AMN can be regarded as a wellbalanced network where mode conversion does not occur [4]. The S-parameters of an AMN are measured using an AC-SMA adapter that is attached to the EUT terminals of the AMN.…”

Section: Amn S-parametersmentioning

confidence: 99%

Influence of an AC-coaxial adapter on measurements of the AMN impedance

et al. 2015

Self Cite

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Abstract:The measurements of the characteristics of an artificial mains network (AMN) are always affected by an AC-coaxial adapter connecting an impedance measuring equipment to the AMN. The present paper theoretically investigates the influences of the adapter on the measured AMN S-parameters in terms of the mode S-parameters. As a result, it proposes a correction method for eliminating the adapter influences in order to reveal the true AMN characteristics. The experimental measurements using two adapters of considerably different characteristics prove that the proposed method can yield almost the same estimates of the AMN impedance.

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Generation and Propagation of Common-Mode Currents in a Balanced Two-Conductor Line

Cited by 46 publications

References 12 publications

Combined MTL-Fullwave Statistical Approach for Fast Estimation of Radiated Immunity of Spacecraft Cable Assemblies Involving Multipair Bundles

Combined MTL-Fullwave Statistical Approach for Fast Estimation of Radiated Immunity of Spacecraft Cable Assemblies Involving Multipair Bundles

Wavelet Transform-Based <sc>EMI</sc> Noise Mitigation in Power Converter Topologies

Influence of an AC-coaxial adapter on measurements of the AMN impedance

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