TY - GEN
T1 - An active common-mode filter for reducing radiated noise from power cables
AU - Takahashi, Shotaro
AU - Ogasawara, Satoshi
AU - Orikawa, Koji
AU - Takemoto, Masatsugu
AU - Tamate, Michio
PY - 2017/7/25
Y1 - 2017/7/25
N2 - 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.
AB - 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.
KW - Active Common-mode Filter
KW - distributed constant lines
KW - EMI
KW - power cables
KW - radiated noise
UR - http://www.scopus.com/inward/record.url?scp=85034072042&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85034072042&partnerID=8YFLogxK
U2 - 10.1109/IFEEC.2017.7992313
DO - 10.1109/IFEEC.2017.7992313
M3 - Conference contribution
AN - SCOPUS:85034072042
T3 - 2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia, IFEEC - ECCE Asia 2017
SP - 1753
EP - 1758
BT - 2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia, IFEEC - ECCE Asia 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 3rd IEEE International Future Energy Electronics Conference and ECCE Asia, IFEEC - ECCE Asia 2017
Y2 - 3 June 2017 through 7 June 2017
ER -