Review of Modeling and Suppression Techniques for Electromagnetic Interference in Power Conversion Systems

  • Takahashi Shotaro
    Department of Systems Design Engineering, Faculty of Science and Technology, Seikei University
  • Wada Keiji
    Graduate School of Systems Design, Tokyo Metropolitan University
  • Ayano Hideki
    National Institute of Technology, Tokyo College
  • Ogasawara Satoshi
    Faculty of Information Science and Technology, Hokkaido University
  • Shimizu Toshihisa
    Graduate School of Systems Design, Tokyo Metropolitan University

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<p>The switching frequency of power converters is continuing to increase with the demand for their increased power density. Therefore, the frequency band of the electromagnetic interference (EMI) generated by power converters ranges from several kilohertz to 100MHz or more, thereby increasing the importance of EMI countermeasures in power converters. In addition, with the practical applications of smart grids and microgrids and the introduction of 5G technology, cases wherein power converters and information communication devices are placed in close proximity are continuing to increase. Thus, in societies wherein power converters and information communication devices are highly integrated, it is necessary to ensure electromagnetic compatibility based on a different concept. This paper presents a review on modeling and suppression techniques for the EMI generated by power converters and discusses future prospects in this field.</p>

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