3-D Electromagnetic Modeling of EMI Input Filters

Kovačević, Ivana F.; Friedli, Thomas; Muesing, Andreas; Kolar, Johann W.

doi:10.1109/tie.2013.2242422

Cited by 77 publications

(20 citation statements)

References 33 publications

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“…It is clearly noticed that parasitic effects limit the achievable insertion losses and degraded the EMI filter performance for frequencies above 1 MHz. This can be explained by the parasitic series inductance of capacitors and the capacitance across the choke coils [56]. There are modeling methods for passive components that can be used to predict the high frequency parasitic effects that typically create EMC degradation [57].…”

Section: Resultsmentioning

confidence: 99%

EMI Filter Design for a Single-stage Bidirectional and Isolated AC–DC Matrix Converter

et al. 2018

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This paper describes the design of an electromagnetic interference (EMI) filter for the high-frequency link matrix converter (HFLMC). The proposed method aims to systematize the design process for pre-compliance with CISPR 11 Class B standard in the frequency range 150 kHz to 30 MHz. This approach can be extended to other current source converters which allows time-savings during the project of the filter. Conducted emissions are estimated through extended simulation and take into account the effect of the measurement apparatus. Differential-mode (DM) and common-mode (CM) filtering stages are projected separately and then integrated in a synergistic way in a single PCB to reduce volume and weight. A prototype of the filter was constructed and tested in the laboratory. Experimental results with the characterization of the insertion losses following the CISPR 17 standard are provided. The attenuation capability of the filter was demonstrated in the final part of the paper.

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Section: Resultsmentioning

confidence: 99%

EMI Filter Design for a Single-stage Bidirectional and Isolated AC–DC Matrix Converter

et al. 2018

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“…GECKO-EMC software-based electromagnetic modeling of the switch mode power supply and the printed circuit board (PCB) layout have been presented in [15] and [16]. A similar type of modeling using COMSOL three-dimensional (3-D) has been provided in [17].…”

Section: B Prediction Of Emi Noisementioning

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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“…However, due to the small impedance of the EMI filter inductor (L f ) resulting from the small L f and low line frequency (50~60Hz) of the universal input conditions, the phase shift caused by L f is relatively small compared with the phase shift caused by the EMI filter capacitor (C f ) and input capacitor (C in ). Thereby, L f can be ignored, and the EMI filter can be simplified as a capacitive filter which is composed of C f and C in [20]. Fig.…”

Section: A Current Reference Correctionmentioning

confidence: 99%

A digital leading phase current reduction (LPCR) technique for CCM boost PFC in light load conditions

Youn

Lee

Baek

et al. 2015

2015 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia)

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This paper proposes a leading phase current reduction (LPCR) technique in a continuous conduction mode (CCM) boost power factor correction (PFC) for light load power factor (PF) improvement. The proposed LPCR technique provides the corrected average inductor current reference and the modified duty ratio feed-forward (MDFF) technique which can cancel the effect of the phase lead currents resulting from the EMI filter and input capacitor. Moreover, the proposed LPCR also provides the optimal dead-zone from the corrected current reference and MDFF. Therefore, the proposed LPCR can improve the power quality and efficiency not only in high AC line voltage range but also in extreme light load conditions. The principle and analysis of the proposed LPCR are presented, and the performance and feasibility are verified by experimental results from 230VRMS input and 750W -400V output laboratory prototype.Index Terms--Average current control (ACC), digital control, duty ratio feed-forward control (DFF), power factor correction (PFC).

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3-D Electromagnetic Modeling of EMI Input Filters

Cited by 77 publications

References 33 publications

EMI Filter Design for a Single-stage Bidirectional and Isolated AC–DC Matrix Converter

EMI Filter Design for a Single-stage Bidirectional and Isolated AC–DC Matrix Converter

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

A digital leading phase current reduction (LPCR) technique for CCM boost PFC in light load conditions

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