An active common-mode filter for reducing radiated noise from power cables

Shotaro Takahashi, Satoshi Ogasawara, Koji Orikawa, Masatsugu Takemoto, Michio Tamate

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Power electronics equipments can cause serious electromagnetic interference (EMI) because of their high-speed switching. Such switching disturbances then propagate along power cables, which can act as antennas to radiate the noise. Typically, a passive filter composed of inductors and capacitors is widely used to reduce electromagnetic interference. However, when a power cable is connected to the passive filter, the cable acts as a distributed line that worsens the attenuation characteristic of the passive filter at the anti-resonant frequencies of the cable. This paper proposes a solution to this problem in the form of an active common-mode filter (ACF) that uses a high-speed amplifier. Experimental results show that the proposed filter improves the attenuation characteristics of the passive filter and reduces the common-mode voltage propagating through the cable over a wide range of frequencies from 10 MHz to 100 MHz. Furthermore, measurements for radiated noise from the cable are carried out in an anechoic chamber, and evaluate the radiated noise attenuation characteristics of the ACF.

Original languageEnglish
Title of host publication2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia, IFEEC - ECCE Asia 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1753-1758
Number of pages6
ISBN (Electronic)9781509051571
DOIs
Publication statusPublished - Jul 25 2017
Externally publishedYes
Event3rd IEEE International Future Energy Electronics Conference and ECCE Asia, IFEEC - ECCE Asia 2017 - Kaohsiung, Taiwan, Province of China
Duration: Jun 3 2017Jun 7 2017

Publication series

Name2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia, IFEEC - ECCE Asia 2017

Other

Other3rd IEEE International Future Energy Electronics Conference and ECCE Asia, IFEEC - ECCE Asia 2017
CountryTaiwan, Province of China
CityKaohsiung
Period6/3/176/7/17

Keywords

  • Active Common-mode Filter
  • distributed constant lines
  • EMI
  • power cables
  • radiated noise

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Control and Optimization

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