Design and Optimization of Input and Output EMI Filters under the Influence of Parasitic Couplings

Research output: Chapter in book/report/conference proceedingConference contributionResearchpeer review

Authors

  • Mohammad Ali
  • Jens Friebe
  • Axel Mertens
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Details

Original languageEnglish
Title of host publication2021 23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (electronic)9789075815375
ISBN (print)978-1-6654-3384-6
Publication statusPublished - 2021
Event23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe - Ghent, Belgium
Duration: 6 Sept 202110 Sept 2021

Publication series

Name2021 23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe

Abstract

Attenuation of EMI filters is not only influenced by parasitic inductances and capacitances but also very strongly affected by magnetic couplings among filter components. This effect depends on the specific layout design and the placement of the elements. This paper explains and analyzes design rules for the best possible construction of such filters in terms of attenuation. Different topologies of an EMI filter are investigated based on the influence of parasitics and magnetic couplings on the filter attenuation. It is shown that magnetic couplings and trace inductances of the PCB layout greatly affect the EMI filter attenuation. The right choice of the filter topology, optimized filter components, parasitic reduction techniques, and a proper PCB design increase the filter attenuation significantly. Therefore, general rules for the design of optimized EMI filters are identified. Finally, a three-phase two-stage EMI filter is constructed at the output of an SiC inverter and verified with EMI measurements.

Keywords

    3-D Electromagnetic Modeling, Electromagnetic Interference (EMI) Filters, EMI, Filter Optimization, Mutual Couplings, Parasitics

ASJC Scopus subject areas

Cite this

Design and Optimization of Input and Output EMI Filters under the Influence of Parasitic Couplings. / Ali, Mohammad; Friebe, Jens; Mertens, Axel.
2021 23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe. Institute of Electrical and Electronics Engineers Inc., 2021. (2021 23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe).

Research output: Chapter in book/report/conference proceedingConference contributionResearchpeer review

Ali, M, Friebe, J & Mertens, A 2021, Design and Optimization of Input and Output EMI Filters under the Influence of Parasitic Couplings. in 2021 23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe. 2021 23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe, Institute of Electrical and Electronics Engineers Inc., 23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe, Ghent, Belgium, 6 Sept 2021. https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570483
Ali, M., Friebe, J., & Mertens, A. (2021). Design and Optimization of Input and Output EMI Filters under the Influence of Parasitic Couplings. In 2021 23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe (2021 23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570483
Ali M, Friebe J, Mertens A. Design and Optimization of Input and Output EMI Filters under the Influence of Parasitic Couplings. In 2021 23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe. Institute of Electrical and Electronics Engineers Inc. 2021. (2021 23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe). doi: 10.23919/EPE21ECCEEurope50061.2021.9570483
Ali, Mohammad ; Friebe, Jens ; Mertens, Axel. / Design and Optimization of Input and Output EMI Filters under the Influence of Parasitic Couplings. 2021 23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe. Institute of Electrical and Electronics Engineers Inc., 2021. (2021 23rd European Conference on Power Electronics and Applications, EPE 2021 ECCE Europe).
Download
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abstract = "Attenuation of EMI filters is not only influenced by parasitic inductances and capacitances but also very strongly affected by magnetic couplings among filter components. This effect depends on the specific layout design and the placement of the elements. This paper explains and analyzes design rules for the best possible construction of such filters in terms of attenuation. Different topologies of an EMI filter are investigated based on the influence of parasitics and magnetic couplings on the filter attenuation. It is shown that magnetic couplings and trace inductances of the PCB layout greatly affect the EMI filter attenuation. The right choice of the filter topology, optimized filter components, parasitic reduction techniques, and a proper PCB design increase the filter attenuation significantly. Therefore, general rules for the design of optimized EMI filters are identified. Finally, a three-phase two-stage EMI filter is constructed at the output of an SiC inverter and verified with EMI measurements.",
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Download

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AU - Ali, Mohammad

AU - Friebe, Jens

AU - Mertens, Axel

N1 - Funding Information: This work was supported as IGF Project (AiF 19236 N/1) via AiF and FVA by the German Ministry of Economic Affairs and Energy (BMWi), based on a decision by the German Bundestag.

PY - 2021

Y1 - 2021

N2 - Attenuation of EMI filters is not only influenced by parasitic inductances and capacitances but also very strongly affected by magnetic couplings among filter components. This effect depends on the specific layout design and the placement of the elements. This paper explains and analyzes design rules for the best possible construction of such filters in terms of attenuation. Different topologies of an EMI filter are investigated based on the influence of parasitics and magnetic couplings on the filter attenuation. It is shown that magnetic couplings and trace inductances of the PCB layout greatly affect the EMI filter attenuation. The right choice of the filter topology, optimized filter components, parasitic reduction techniques, and a proper PCB design increase the filter attenuation significantly. Therefore, general rules for the design of optimized EMI filters are identified. Finally, a three-phase two-stage EMI filter is constructed at the output of an SiC inverter and verified with EMI measurements.

AB - Attenuation of EMI filters is not only influenced by parasitic inductances and capacitances but also very strongly affected by magnetic couplings among filter components. This effect depends on the specific layout design and the placement of the elements. This paper explains and analyzes design rules for the best possible construction of such filters in terms of attenuation. Different topologies of an EMI filter are investigated based on the influence of parasitics and magnetic couplings on the filter attenuation. It is shown that magnetic couplings and trace inductances of the PCB layout greatly affect the EMI filter attenuation. The right choice of the filter topology, optimized filter components, parasitic reduction techniques, and a proper PCB design increase the filter attenuation significantly. Therefore, general rules for the design of optimized EMI filters are identified. Finally, a three-phase two-stage EMI filter is constructed at the output of an SiC inverter and verified with EMI measurements.

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KW - Electromagnetic Interference (EMI) Filters

KW - EMI

KW - Filter Optimization

KW - Mutual Couplings

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